Medicare Enrolled
Dr. Hung-Min Sung, M.D.
Internal Medicine · Santa Ana, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Sung 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 →
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What this data tells you about Dr. Sung
Dr. Hung-Min Sung is an internal medicine specialist in Santa Ana, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Sung performed 9,753 Medicare services across 1,781 unique beneficiaries.
Between the years covered by Open Payments, Dr. Sung received a total of $16,947 from 50 pharmaceutical and/or device companies across 573 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Sung 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.
✓ 18 years in practice
▲ Top 2% volume in CA
$16,947 industry payments
Medicare Practice Summary
Medicare Utilization ↗9,753
Medicare services
Top 2% in CA for internal medicine
1,781
Unique beneficiaries
$28
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~542 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 |
|---|---|---|---|
| Joint lubricant injection (TriVisc) An injection of hyaluronan or a derivative into a joint space. The dose specified is 1 milligram. |
4,775 | $7 | $32 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,297 | $70 | $120 |
| Hyaluronan intra-articular injection, 1 mg An injection of hyaluronan or its derivative into a joint space. This procedure delivers 1 mg of the substance directly into the affected joint. |
1,040 | $7 | $52 |
| Blood glucose level test A test that measures the amount of sugar in your blood. |
447 | $4 | $20 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
268 | $81 | $198 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
158 | $8 | $15 |
| 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. |
143 | $12 | $75 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
139 | $41 | $120 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
115 | $52 | $150 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
113 | $11 | $120 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
110 | $140 | $250 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
105 | $107 | $350 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
98 | $137 | $450 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
97 | $1 | $25 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
93 | $158 | $450 |
| 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. |
91 | $133 | $209 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
88 | $33 | $50 |
| 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. |
78 | $102 | $200 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
74 | $44 | $150 |
| 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. |
74 | $18 | $50 |
| Annual depression screening | 71 | $21 | $75 |
| Influenza vaccine, quadrivalent, 0.5 ml dosage | 57 | $20 | $80 |
| Remote vital sign monitoring management, each additional 20 minutes This code covers the time spent by a provider managing patient data from remote vital sign monitoring devices. It applies to each additional 20-minute increment beyond the initial monthly service period. |
44 | $34 | $150 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
41 | $221 | $450 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
37 | $164 | $450 |
| Quadrivalent influenza vaccine, cell culture-derived A flu shot that protects against four strains of the influenza virus. It is produced using cell culture technology rather than traditional egg-based methods. |
32 | $32 | $80 |
| Denosumab injection (Prolia/Xgeva) | 28 | $0 | $0 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
28 | $8 | $55 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
12 | $21 | $100 |
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.
1.0% high complexity
68.2% medium
30.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$16,947
Total received (2018-2024)
Avg $2,421/year across 7 years
Top 7% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
50
Companies
573
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.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$16,947 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,011
2023
$3,009
2022
$3,267
2021
$2,249
2020
$1,418
2019
$1,185
2018
$2,806
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$1,088
Boehringer Ingelheim Pharmaceuticals, Inc.
$341
Gilead Sciences, Inc.
$275
Lilly USA, LLC
$257
Phathom Pharmaceuticals, Inc.
$238
GlaxoSmithKline, LLC.
$144
Otsuka America Pharmaceutical, Inc.
$131
Ardelyx, Inc.
$125
Corcept Therapeutics
$115
IRONWOOD PHARMACEUTICALS, INC
$66
Avanos Medical
$63
Astellas Pharma US Inc
$61
Bayer Healthcare Pharmaceuticals Inc.
$30
Novo Nordisk Inc
$25
Merck Sharp & Dohme LLC
$21
Exact Sciences Corporation
$18
ABBVIE INC.
$14
Top 3 companies account for 56.6% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$5,198
Amgen Inc.
$1,332
GlaxoSmithKline, LLC.
$1,259
Lilly USA, LLC
$1,086
Boehringer Ingelheim Pharmaceuticals, Inc.
$863
Novartis Pharmaceuticals Corporation
$606
Janssen Pharmaceuticals, Inc
$535
ABBVIE INC.
$406
Nestle HealthCare Nutrition Inc.
$401
Gilead Sciences, Inc.
$378
PFIZER INC.
$342
Corcept Therapeutics
$338
AbbVie Inc.
$313
SANOFI-AVENTIS U.S. LLC
$293
Allergan, Inc.
$285
Takeda Pharmaceuticals U.S.A., Inc.
$271
Xeris Pharmaceuticals, Inc.
$258
Novo Nordisk Inc
$251
IBSA Pharma Inc.
$250
Phathom Pharmaceuticals, Inc.
$238
Ironwood Pharmaceuticals, Inc
$153
Stryker Corporation
$150
CeQur Corporation
$143
Otsuka America Pharmaceutical, Inc.
$131
Ardelyx, Inc.
$125
Dexcom, Inc.
$121
Allergan Inc.
$115
IMPEL PHARMACEUTICALS INC.
$115
Bayer HealthCare Pharmaceuticals Inc.
$95
Merck Sharp & Dohme Corporation
$89
Amarin Pharma Inc.
$86
Fidia Pharma USA Inc.
$78
E.R. Squibb & Sons, L.L.C.
$78
IRONWOOD PHARMACEUTICALS, INC
$78
Kowa Pharmaceuticals America, Inc.
$65
Avanos Medical
$63
Astellas Pharma US Inc
$61
Bayer Healthcare Pharmaceuticals Inc.
$48
Exact Sciences Corporation
$36
Organon LLC
$30
Ferring Pharmaceuticals Inc.
$29
Avanir Pharmaceuticals, Inc.
$25
Synergy Pharmaceuticals Inc
$22
DePuy Synthes Sales Inc.
$21
Merck Sharp & Dohme LLC
$21
Biohaven Pharmaceuticals, Inc.
$17
Cumberland Pharmaceuticals, Inc.
$13
Noden Pharma USA Inc
$12
ARBOR PHARMACEUTICALS, INC.
$11
FIDIA PHARMA USA INC.
$11
Top 3 companies account for 46.0% of all-time payments
Associated products mentioned in payments ›
AIRSUPRA · ANORO · ANORO ELLIPTA · AREXVY · Aimovig · Amitiza · BEVESPI AEROSPHERE · BREO · BREZTRI · BREZTRI AEROSPHERE · BRILINTA · BYDUREON · BYSTOLIC · CHANTIX · COLOGUARD · CREON · CeQur Simplicity · Cologuard Collection Kit · DEXCOM G7 GSS (161) · DUZALLO · ELIQUIS · EMGALITY · ENTRESTO · EUFLEXXA · EVENITY · Edarbi · Epclusa · FARXIGA · GARDASIL · GVOKE HYPOPEN · HYMOVIS · Hyalgan · IBSRELA · INVOKANA · JANUVIA · JARDIANCE · Kerendia · Korlym · LINZESS · LOKELMA · LYRICA · Licart · Linzess · Livalo · MAKO · MAVYRET · MOUNJARO · MOVANTIK · NAMZARIC · NEXPLANON · NUEDEXTA · NURTEC ODT · ORTHOVISC · Otezla · Ozempic · PNEUMOVAX 23 · Prolia · RECORLEV · REDITREX · REXULTI · RYBELSUS · Repatha · Rybelsus · SOLIQUA · SOLIQUA 100/33 · SYMBICORT · SYNVISC-ONE · TEKTURNA · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRIVISC SODIUM HYALURONATE · TRULICITY · Tirosint · Tresiba · Trudhesa · Trulance · UBRELVY · Uloric · VIBERZI · VOQUEZNA · VRAYLAR · Vascepa · Vemlidy · Veozah · Victoza · XARELTO · ZENPEP
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 →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 7% for internal medicine in CA.
Geographic Context
Internal medicine physicians within 10 mi
2,540
Per 100K population
80.3
County median income
$113,702
Nearest hospital
COASTAL COMMUNITIES 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. Sung is a clinical cardiology specialist, with above-average Medicare volume (top 2% in CA), with low-engagement industry engagement in the top 7% of CA peers, with 18 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. Sung experienced with joint lubricant injection (trivisc)?
Based on Medicare claims data, Dr. Sung performed 4,775 joint lubricant injection (trivisc) 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. Sung receive payments from pharmaceutical companies?
Yes. Dr. Sung received a total of $16,947 from 50 companies across 573 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. Sung's costs compare to other internal medicine physicians in Santa Ana?
Dr. Sung's average Medicare payment per service is $28. 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. Sung) 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 →
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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.
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