Medicare Enrolled
Dr. Kristopher Wentzel, M.D.
Student in an Organized Health Care Education/Training Program · Los Angeles, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Wentzel 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. Wentzel
Dr. Kristopher Wentzel is a student in an organized health care education/training program specialist in Los Angeles, CA, with 13 years of NPI registration. Based on federal Medicare data, Dr. Wentzel performed 50,574 Medicare services across 3,081 unique beneficiaries.
Between the years covered by Open Payments, Dr. Wentzel received a total of $1,928 from 13 pharmaceutical and/or device companies across 28 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in student in an organized health care education/training program. 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. Wentzel 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.
✓ 13 years in practice
▲ Top 0% volume in CA
$1,928 industry payments
Medicare Practice Summary
Medicare Utilization ↗50,574
Medicare services
Top 0% in CA for student in an organized health care education/training program
3,081
Unique beneficiaries
$9
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~3,890 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 |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
21,750 | $1 | $3 |
| Epoetin alfa injection (Procrit) for anemia An injection of epoetin alfa containing 1000 units for use in patients not on end-stage renal disease (ESRD) dialysis. |
10,250 | $6 | $30 |
| Denosumab injection (Prolia/Xgeva) | 5,640 | $18 | $60 |
| 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. |
1,341 | $8 | $27 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,215 | $10 | $37 |
| 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. |
1,119 | $6 | $21 |
| 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. |
1,115 | $5 | $17 |
| 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. |
1,113 | $4 | $16 |
| 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. |
1,077 | $107 | $425 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,039 | $8 | $19 |
| Glutamyltransferase (GGT) level test A blood test that measures the level of the liver enzyme glutamyltransferase (GGT) to help evaluate liver health. |
887 | $7 | $25 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
508 | $9 | $32 |
| 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. |
395 | $12 | $75 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
259 | $13 | $48 |
| Iron level test | 247 | $6 | $23 |
| 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. |
211 | $9 | $27 |
| PSA test (prostate cancer screening) | 206 | $18 | $64 |
| 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. |
170 | $25 | $90 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
148 | $15 | $53 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
117 | $123 | $553 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
115 | $4 | $14 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
109 | $108 | $423 |
| Subcutaneous or intramuscular chemotherapy injection This procedure involves administering anti-cancer hormonal medication through an injection into the tissue under the skin or into a muscle. |
103 | $32 | $146 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
90 | $14 | $51 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
83 | $60 | $232 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
77 | $4 | $14 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
77 | $14 | $74 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
73 | $16 | $59 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
72 | $1 | $8 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
71 | $68 | $237 |
| 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. |
68 | $5 | $18 |
| Additional sequential IV infusion, 1 hour or less This code represents an additional intravenous infusion administered sequentially to a primary infusion. It covers the administration time of one hour or less. |
60 | $27 | $107 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
59 | $102 | $373 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
54 | $1 | $5 |
| Coagulation function measurement, d-dimer; quantitative | 48 | $10 | $36 |
| 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. |
47 | $5 | $18 |
| 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. |
46 | $72 | $170 |
| New patient office visit, complex (60-74 min) | 46 | $193 | $724 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
46 | $34 | $73 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
45 | $9 | $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. |
45 | $17 | $59 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
43 | $2 | $25 |
| Beta-2 microglobulin level test A blood test that measures the level of beta-2 microglobulin, a protein produced by cells in the body. |
38 | $16 | $57 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
37 | $3 | $11 |
| Carcinoembryonic antigen (CEA) level test A blood test that measures the level of carcinoembryonic antigen (CEA) protein. This test is used to monitor certain types of cancer. |
33 | $19 | $66 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
32 | $29 | $103 |
| Additional hour of intravenous hydration This code represents each additional hour of intravenous fluid administration beyond the initial hour. It is used to bill for extended hydration therapy. |
32 | $12 | $51 |
| 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. |
30 | $73 | $302 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
28 | $4 | $13 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
22 | $13 | $59 |
| 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 | $155 | $594 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
16 | $10 | $34 |
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.
43.6% high complexity
32.8% medium
23.6% routine
Industry Payment Transparency
Open Payments through 2023 ↗$1,928
Total received (2018-2023)
Avg $386/year across 5 years
Top 14% in CA for student in an organized health care education/training program
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
13
Companies
28
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
$1,689 (87.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$239 (12.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2023
$297
2022
$150
2020
$67
2019
$258
2018
$1,156
Payments by company (2023)
Consulting
Speaking
Meals & Travel
Research
AVEO Pharmaceuticals, Inc.
$144
Dendreon Pharmaceuticals LLC
$62
BeiGene USA, Inc.
$44
EMD Serono, Inc.
$33
PFIZER INC.
$14
Top 3 companies account for 84.3% of 2023 payments
All-time payments by company (2018-2023) ›
Amgen Inc.
$437
Genentech USA, Inc.
$237
Astellas Pharma US Inc
$199
Novartis Pharmaceuticals Corporation
$162
PFIZER INC.
$161
Seagen Inc.
$150
AVEO Pharmaceuticals, Inc.
$144
Janssen Biotech, Inc.
$119
Janssen Scientific Affairs, LLC
$114
Exelixis Inc.
$67
Dendreon Pharmaceuticals LLC
$62
BeiGene USA, Inc.
$44
EMD Serono, Inc.
$33
Top 3 companies account for 45.3% of all-time payments
Associated products mentioned in payments ›
Avastin · BRUKINSA · Cabozantinib · Erleada · FOTIVDA · IBRANCE · JADENU · Kyprolis · MEKINIST · Neulasta · PROVENGE · STELARA · TALZENNA · TECENTRIQ · TEPMETKO · Vectibix · XTANDI
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 (88%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Student in an organized health care education/training programs within 10 mi
15,134
Per 100K population
153.7
County median income
$87,760
Nearest hospital
ADVENTIST HEALTH WHITE MEMORIAL
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 2023 |
| 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. Wentzel is a mixed practice specialist, with above-average Medicare volume (top 0% in CA), with low-engagement industry engagement in the top 14% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Wentzel experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Wentzel performed 21,750 iron infusion (injectafer) 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. Wentzel receive payments from pharmaceutical companies?
Yes. Dr. Wentzel received a total of $1,928 from 13 companies across 28 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. Wentzel's costs compare to other student in an organized health care education/training programs in Los Angeles?
Dr. Wentzel's average Medicare payment per service is $9. 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. Wentzel) 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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