Medicare Enrolled
Dr. Michael Truong, M.D.
Endocrinology · Mission Viejo, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Speaking/Promotional
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Truong from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Truong?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Truong
Dr. Michael Truong is an endocrinology specialist in Mission Viejo, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Truong performed 88,848 Medicare services across 57,630 unique beneficiaries.
Between the years covered by Open Payments, Dr. Truong received a total of $50,030 from 59 pharmaceutical and/or device companies across 751 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in endocrinology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Truong is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 0% volume in CA
$50,030 industry payments
Medicare Practice Summary
Medicare Utilization ↗88,848
Medicare services
Top 0% in CA for endocrinology
57,630
Unique beneficiaries
$14
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~4,442 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
11,796 | $10 | $32 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
9,574 | $13 | $43 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
9,514 | $8 | $43 |
| Denosumab injection (Prolia/Xgeva) | 8,640 | $14 | $27 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
7,598 | $16 | $48 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
7,070 | $10 | $32 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
3,994 | $8 | $13 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
2,846 | $5 | $18 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
2,825 | $6 | $39 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
2,570 | $29 | $85 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
2,244 | $9 | $34 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
2,111 | $3 | $13 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
2,103 | $15 | $45 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,675 | $98 | $345 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
1,358 | $8 | $24 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
1,066 | $13 | $42 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
994 | $19 | $71 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
845 | $14 | $46 |
| Complete blood count (CBC), automated An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood. |
833 | $6 | $41 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
786 | $44 | $109 |
| Iron level test | 780 | $6 | $17 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
757 | $9 | $20 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
715 | $5 | $24 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
650 | $4 | $15 |
| Natriuretic peptide level test A blood test that measures the level of natriuretic peptide, a protein produced by the heart and blood vessels. |
537 | $38 | $86 |
| Fecal immunochemical test (FIT), 1-3 simultaneous A screening test that uses a stool sample to detect hidden blood in the feces, helping to identify potential colorectal cancer. |
444 | $18 | $45 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
406 | $40 | $104 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
362 | $3 | $29 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
343 | $2 | $10 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
262 | $12 | $39 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
261 | $7 | $17 |
| Hepatitis C antibody screening A blood test to check for antibodies indicating a Hepatitis C infection. This screening is performed for individuals at high risk or those with other covered indications. |
221 | $31 | $32 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
219 | $17 | $60 |
| PSA test (prostate cancer screening) | 207 | $18 | $56 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
202 | $6 | $15 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
174 | $25 | $65 |
| Phosphate level test A blood test that measures the amount of phosphate in your body. Phosphate is a mineral that helps keep bones and teeth strong. |
155 | $5 | $15 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
129 | $6 | $15 |
| Lipase level test A blood test that measures the amount of lipase, a fat-digesting enzyme, in your body. |
115 | $7 | $26 |
| Liver function blood test panel | 112 | $8 | $22 |
| Total calcium level test A blood test that measures the total amount of calcium in your body. |
105 | $5 | $15 |
| Stool test for hidden blood (FIT) A laboratory test that analyzes a stool sample to detect hidden blood using an immunoassay method. |
104 | $16 | $56 |
| Bone density scan (DEXA) of forearm, finger, hand, or foot A DEXA scan measures bone mineral density in the forearm, finger, hand, or foot. This test helps assess bone strength and risk of fracture. |
98 | $33 | $90 |
| Manual white blood cell count A laboratory test that involves examining a sample under a microscope to manually count the number of white blood cells present. |
96 | $4 | $28 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
84 | $95 | $325 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
83 | $14 | $62 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
57 | $5 | $15 |
| Blood urea nitrogen test A blood test that measures the amount of urea nitrogen to assess kidney function. |
56 | $4 | $15 |
| Amylase enzyme level test A blood test that measures the amount of amylase, an enzyme produced by the pancreas and salivary glands, to help evaluate pancreatic health. |
51 | $6 | $18 |
| Prolactin level test A blood test that measures the amount of prolactin, a hormone produced by the pituitary gland that stimulates milk production, in the body. |
49 | $19 | $56 |
| Blood potassium level test A blood test that measures the amount of potassium in your body. Potassium is an electrolyte that helps control heart and muscle function. |
48 | $5 | $15 |
| Follicle stimulating hormone (FSH) level A blood test to measure the level of follicle stimulating hormone, a reproductive hormone. |
45 | $18 | $56 |
| Glutamyltransferase (GGT) level test A blood test that measures the level of the liver enzyme glutamyltransferase (GGT) to help evaluate liver health. |
39 | $7 | $15 |
| Urine total protein level A laboratory test that measures the total amount of protein present in a urine sample. |
38 | $4 | $10 |
| Complement and antigen measurement A laboratory test to measure levels of complement proteins and antigens in the blood. |
37 | $12 | $55 |
| Liver enzyme (SGPT) level test A blood test that measures the level of the liver enzyme SGPT to assess liver function. |
36 | $5 | $15 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
27 | $29 | $30 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
27 | $1 | $17 |
| Blood glucose level test A test that measures the amount of sugar in your blood. |
26 | $4 | $15 |
| High-sensitivity C-reactive protein test A blood test that measures high-sensitivity C-reactive protein to detect infection or inflammation. |
25 | $13 | $32 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
25 | $66 | $96 |
| Total T3 thyroid hormone test A blood test that measures the total amount of triiodothyronine (T3) hormone in your body. T3 is a thyroid hormone that helps regulate metabolism and energy levels. |
23 | $14 | $45 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
23 | $136 | $447 |
| Direct bilirubin level test A blood test that measures the amount of direct bilirubin in your body. Direct bilirubin is the form of the waste product processed by the liver. |
22 | $5 | $15 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
22 | $147 | $485 |
| Rheumatoid factor analysis | 21 | $6 | $24 |
| Luteinizing hormone level test A blood test that measures the level of luteinizing hormone, a reproductive hormone. This test helps evaluate hormonal balance and reproductive function. |
20 | $18 | $56 |
| Liver enzyme (SGOT) level test A blood test that measures the level of the liver enzyme SGOT to help assess liver health. |
20 | $5 | $15 |
| Continuous glucose monitoring with interpretation This procedure involves monitoring blood sugar levels in tissue fluid using a sensor placed under the skin, along with the interpretation and reporting of the results. |
20 | $29 | $92 |
| Alkaline phosphatase level test A blood test that measures the level of alkaline phosphatase, an enzyme found in the liver and bones. |
16 | $5 | $15 |
| LDL cholesterol level test A blood test that measures the amount of low-density lipoprotein (LDL) cholesterol in your blood. LDL is often referred to as "bad" cholesterol. |
12 | $10 | $24 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$50,030
Total received (2018-2024)
Avg $7,147/year across 7 years
Top 7% in CA for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
59
Companies
751
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$35,673 (71.3%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$14,357 (28.7%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,423
2023
$1,364
2022
$324
2021
$380
2020
$3,203
2019
$14,821
2018
$28,515
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$279
ABBVIE INC.
$145
Novartis Pharmaceuticals Corporation
$121
Lilly USA, LLC
$120
Amgen Inc.
$118
SANOFI-AVENTIS U.S. LLC
$80
Novo Nordisk Inc
$75
Radius Health, Inc.
$60
Medtronic, Inc.
$55
Kyowa Kirin, Inc.
$53
Xeris Pharmaceuticals, Inc.
$44
RECORDATI_RARE_DISEASES_INC.
$42
Insulet Corporation
$35
CeQur Corporation
$34
Alexion Pharmaceuticals, Inc.
$29
Corcept Therapeutics
$27
Tandem Diabetes Care, Inc.
$21
Esperion Therapeutics, Inc.
$19
Mannkind Corporation
$18
Dexcom, Inc.
$17
Tolmar, Inc.
$16
Currax Pharmaceuticals LLC
$13
Top 3 companies account for 38.4% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$19,849
Amgen Inc.
$10,004
Regeneron Healthcare Solutions, Inc.
$4,560
SANOFI-AVENTIS U.S. LLC
$2,824
Tosoh Bioscience, Inc.
$2,232
Lilly USA, LLC
$1,476
Novo Nordisk Inc
$1,159
Abbott Laboratories
$1,057
Medtronic MiniMed, Inc.
$1,037
AstraZeneca Pharmaceuticals LP
$646
AbbVie, Inc.
$641
Radius Health, Inc.
$437
Kowa Pharmaceuticals America, Inc.
$380
Boehringer Ingelheim Pharmaceuticals, Inc.
$379
Dexcom, Inc.
$316
Novartis Pharmaceuticals Corporation
$273
Amarin Pharma Inc.
$207
Merck Sharp & Dohme Corporation
$206
AbbVie Inc.
$196
Bioventus LLC
$177
Alexion Pharmaceuticals, Inc.
$156
Corcept Therapeutics
$152
ABBVIE INC.
$145
Insulet Corporation
$131
Nalpropion Pharmaceuticals LLC
$108
Currax Pharmaceuticals LLC
$96
Bayer HealthCare Pharmaceuticals Inc.
$82
Kyowa Kirin, Inc.
$79
RECORDATI_RARE_DISEASES_INC.
$65
Eisai Inc.
$61
Amneal Pharmaceuticals LLC
$59
Ipsen Biopharmaceuticals, Inc
$59
IBSA Pharma Inc.
$56
Medtronic, Inc.
$55
Esperion Therapeutics, Inc.
$50
Gemini Laboratories, LLC
$50
Bayer Healthcare Pharmaceuticals Inc.
$45
Xeris Pharmaceuticals, Inc.
$44
Shire North American Group Inc
$42
Alvogen Inc
$39
Antares Pharma, Inc.
$36
Ascendis Pharma Inc
$35
CeQur Corporation
$34
Nalpropion Pharmaceuticals, Inc.
$32
Tolmar, Inc.
$30
Orexigen Therapeutics, Inc.
$26
PFIZER INC.
$26
Valeritas, Inc.
$22
Tandem Diabetes Care, Inc.
$21
DEXCOM, INC.
$19
ASCEND Therapeutics US, LLC
$18
Mannkind Corporation
$18
Horizon Therapeutics plc
$14
Acella Pharmaceuticals, LLC
$14
Strongbridge US INC.
$14
EISAI INC.
$14
MannKind Corporation
$13
Arbor Pharmaceuticals, Inc.
$11
Travere Therapeutics, Inc.
$1
Top 3 companies account for 68.8% of all-time payments
Associated products mentioned in payments ›
(820) Cholbam · AFREZZA · AIA-PACK Calibrator Set · APIDRA · Aimovig · Androgel · BAQSIMI · BASAGLAR · BINOSTO · Belviq · CONTRAVE · CeQur Simplicity · Cholbam · DEXCOM CGM · DEXCOM G6 CGM SYSTEM · DEXCOM G6 TRANSMITTER · Dexcom CGM · Dexcom G6 Transmitter · Durolane · EVENITY · Edarbi · FARXIGA · FORTEO · FREESTYLE LIBRE · FREESTYLE LIBRE 3 · FSH · FreeStyle Libre · FreeStyle Libre blood glucose Flash Monitoring System · FreeStyle Lite system · GVOKE HYPOPEN · HUMALOG · HUMULIN · HUMULIN R 500 · INTELLIS ADAPTIVESTIM · INVOKANA · JANUVIA · JARDIANCE · JATENZO · Kerendia · Korlym · LANTUS · LEQVIO · LH II · LYUMJEV · Livalo · MACRILEN · MINIMED 780G · MOUNJARO · Minimed 670G System · NATPARA · NATPARA (PARATHYROID HORMONE) · NEXLETOL · NOCDURNA · NP Thyroid 60 · OTREXUP · Omnipod · Ozempic · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Prolia · RECORLEV · RYBELSUS · Repatha · SIGNIFOR LAR · SKYTROFA · SOLIQUA · SOLIQUA 100/33 · SOMATULINE DEPOT · SOMAVERT · ST AIA-PACK · STRENSIQ · SYNTHROID · Saxenda · Somatuline Depot · Strensiq · Synthroid · TEPEZZA · TERIPARATIDE · TOUJEO · TRADJENTA · TRULICITY · TSH3G · TZIELD · Tirosint · Tresiba · Tymlos · UBRELVY · UNITHROID · V-GO · Vascepa · Victoza · Wegovy · XARELTO · t:slim X2 Insulin Pump with Control-IQ
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (71%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in endocrinology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 7% for endocrinology in CA.
Geographic Context
Endocrinologists within 10 mi
91
Per 100K population
2.9
County median income
$113,702
Nearest hospital
PROVIDENCE MISSION HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Truong is a mixed practice specialist, with above-average Medicare volume (top 0% in CA), with speaking/promotional industry engagement in the top 7% of CA peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Truong experienced with comprehensive metabolic blood panel?
Based on Medicare claims data, Dr. Truong performed 11,796 comprehensive metabolic blood panel services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Truong receive payments from pharmaceutical companies?
Yes. Dr. Truong received a total of $50,030 from 59 companies across 751 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Truong's costs compare to other endocrinologists in Mission Viejo?
Dr. Truong's average Medicare payment per service is $14. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Truong) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
Explore related providers
Specialty guide
Understanding Endocrinology
Common procedures, typical costs, and what industry payments mean in endocrinology.
Same specialty & city
Endocrinologists in Mission Viejo
Browse endocrinologists in Mission Viejo ranked by procedure volume and transparency data.
Highest volume
Top Endocrinologists in CA
Endocrinologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Endocrinologists in CA
Which CA endocrinologists receive the most from drug and device companies.
By company
Janssen Pharmaceuticals, Inc Payments to Doctors
See all physicians who received payments from Janssen Pharmaceuticals, Inc.
By company
Amgen Inc. Payments to Doctors
See all physicians who received payments from Amgen Inc.
By company
Regeneron Healthcare Solutions, Inc. Payments to Doctors
See all physicians who received payments from Regeneron Healthcare Solutions, Inc.
About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology