Medicare Enrolled
Dr. Don Zwickler, M.D.
Endocrinology · Pomona, NY
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. Zwickler 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. Zwickler
Dr. Don Zwickler is an endocrinology specialist in Pomona, NY, with 19 years of NPI registration. Based on federal Medicare data, Dr. Zwickler performed 24,675 Medicare services across 14,533 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zwickler received a total of $14,765 from 42 pharmaceutical and/or device companies across 292 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. Zwickler 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.
✓ 19 years in practice
▲ Top 3% volume in NY
$14,765 industry payments
Medicare Practice Summary
Medicare Utilization ↗24,675
Medicare services
Top 3% in NY for endocrinology
14,533
Unique beneficiaries
$20
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,299 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 |
|---|---|---|---|
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,585 | $8 | $10 |
| 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. |
1,512 | $106 | $185 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,476 | $10 | $30 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
1,470 | $16 | $45 |
| 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. |
1,407 | $8 | $20 |
| Thyroxine (T4) level test A blood test that measures the total amount of thyroxine, a thyroid hormone, in your body. |
1,370 | $7 | $20 |
| Thyroid hormone evaluation A blood test to measure the levels of thyroid hormones in the body. This evaluation helps assess how well the thyroid gland is functioning. |
1,348 | $6 | $20 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
1,255 | $13 | $45 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
1,253 | $7 | $15 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
1,161 | $10 | $30 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
759 | $29 | $70 |
| 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. |
759 | $14 | $35 |
| C-peptide level test A blood test that measures the amount of C-peptide, a protein produced along with insulin, to help evaluate insulin production and diabetes management. |
687 | $20 | $50 |
| Carbohydrate analysis, single quantitative A laboratory test that measures the specific amount of a single carbohydrate in a sample. |
605 | $11 | $30 |
| Manual urinalysis with microscopic examination A urine test performed manually without automated equipment. The sample is examined under a microscope to check for abnormalities. |
488 | $4 | $8 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
464 | $15 | $45 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
444 | $5 | $12 |
| Thyroglobulin antibody blood test A blood test that measures the level of antibodies against thyroglobulin, a protein produced by the thyroid gland. |
436 | $16 | $40 |
| Iron level test | 407 | $6 | $15 |
| 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. |
407 | $9 | $20 |
| Microsomal antibody test A blood test that measures the level of microsomal antibodies, which are autoantibodies produced by the immune system. |
392 | $14 | $40 |
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
367 | $49 | $80 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
343 | $13 | $45 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
327 | $14 | $32 |
| 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. |
305 | $6 | $25 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
289 | $3 | $8 |
| 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. |
266 | $25 | $65 |
| Total cortisol level test A blood test that measures the total amount of cortisol hormone in your body. Cortisol is a hormone produced by the adrenal glands. |
265 | $16 | $35 |
| Sex hormone binding globulin level test A blood test that measures the level of sex hormone binding globulin, a protein that binds to sex hormones in the bloodstream. |
265 | $21 | $60 |
| Follicle stimulating hormone (FSH) level A blood test to measure the level of follicle stimulating hormone, a reproductive hormone. |
259 | $18 | $40 |
| 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. |
259 | $18 | $40 |
| PSA test (prostate cancer screening) | 192 | $18 | $58 |
| 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. |
191 | $31 | $90 |
| Insulin level test A blood test that measures the total amount of insulin in your body. |
188 | $11 | $30 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
158 | $51 | $80 |
| Collagen cross-links urine test A urine test used to evaluate bone health by measuring collagen cross-links. |
150 | $18 | $35 |
| 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. |
146 | $40 | $95 |
| 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. |
83 | $10 | $35 |
| 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. |
78 | $146 | $295 |
| 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. |
75 | $19 | $37 |
| 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. |
74 | $4 | $10 |
| 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. |
64 | $108 | $185 |
| 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. |
61 | $81 | $160 |
| Thyroglobulin level test A blood test that measures the level of thyroglobulin, a protein produced by the thyroid gland. |
55 | $16 | $40 |
| 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. |
53 | $46 | $225 |
| 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. |
52 | $5 | $25 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
43 | $34 | $35 |
| 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. |
39 | $71 | $90 |
| DHEA-S hormone level test A blood test that measures the level of dehydroepiandrosterone sulfate (DHEA-S), a hormone produced by the adrenal glands. |
37 | $22 | $50 |
| Thyroid stimulating immune globulin level test A blood test that measures the level of thyroid stimulating immune globulins, which are proteins related to thyroid function. |
37 | $50 | $85 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
34 | $81 | $160 |
| Somatomedin (growth factor) level test A blood test to measure the level of somatomedin, also known as a growth factor, in the body. |
32 | $21 | $70 |
| Human growth hormone level test A blood test to measure the amount of human growth hormone in the body. |
25 | $16 | $50 |
| Fine needle aspirate evaluation A laboratory examination of cells collected via fine needle aspiration to assess for abnormalities. |
25 | $48 | $80 |
| Total estradiol level test A blood test that measures the total amount of estradiol, a form of estrogen, in the body. |
24 | $26 | $60 |
| Ultrasound-guided fine needle aspiration biopsy, first lesion A biopsy procedure where a thin needle is used to collect tissue samples from a growth, guided by ultrasound imaging. This code applies to the first lesion or mass sampled during the session. |
22 | $123 | $300 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
21 | $9 | $25 |
| 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. |
20 | $5 | $10 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
19 | $8 | $25 |
| Glutamyltransferase (GGT) level test A blood test that measures the level of the liver enzyme glutamyltransferase (GGT) to help evaluate liver health. |
18 | $7 | $13 |
| Continuous glucose monitoring, tissue fluid This procedure involves continuous monitoring of blood sugar levels in tissue fluid using a sensor placed under the skin. |
18 | $60 | $150 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
11 | $19 | $58 |
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 ↗$14,765
Total received (2018-2024)
Avg $2,109/year across 7 years
Top 17% in NY for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
42
Companies
292
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
$10,715 (72.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$4,051 (27.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,160
2023
$775
2022
$628
2021
$56
2020
$2,490
2019
$3,913
2018
$5,743
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Amgen Inc.
$151
Boehringer Ingelheim Pharmaceuticals, Inc.
$95
Almatica Pharma LLC
$93
SANOFI-AVENTIS U.S. LLC
$81
Abbott Laboratories
$78
Lilly USA, LLC
$75
Medtronic, Inc.
$74
Novo Nordisk Inc
$54
Radius Health, Inc.
$54
Madrigal Pharmaceuticals
$53
Corcept Therapeutics
$45
Mannkind Corporation
$40
RECORDATI_RARE_DISEASES_INC.
$40
Astellas Pharma US Inc
$36
Novartis Pharmaceuticals Corporation
$33
IBSA Pharma Inc.
$24
Ascendis Pharma Inc
$24
Xeris Pharmaceuticals, Inc.
$24
PFIZER INC.
$21
Amneal Pharmaceuticals LLC
$21
Ultragenyx Pharmaceutical Inc.
$16
Alexion Pharmaceuticals, Inc.
$15
Acella Pharmaceuticals, LLC
$13
Top 3 companies account for 29.2% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$10,766
Novo Nordisk Inc
$492
Boehringer Ingelheim Pharmaceuticals, Inc.
$440
Abbott Laboratories
$321
Lilly USA, LLC
$314
Corcept Therapeutics
$231
Amgen Inc.
$203
Janssen Pharmaceuticals, Inc
$188
SANOFI-AVENTIS U.S. LLC
$179
Insulet Corporation
$118
RECORDATI_RARE_DISEASES_INC.
$117
Horizon Therapeutics plc
$96
PFIZER INC.
$94
Almatica Pharma LLC
$93
Mannkind Corporation
$81
Medtronic, Inc.
$74
Radius Health, Inc.
$72
Amarin Pharma Inc.
$67
Xeris Pharmaceuticals, Inc.
$64
AbbVie Inc.
$62
Antares Pharma, Inc.
$59
Astellas Pharma US Inc
$58
Madrigal Pharmaceuticals
$53
Becton, Dickinson and Company
$46
Gemini Laboratories, LLC
$45
AbbVie, Inc.
$42
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$38
Amneal Pharmaceuticals LLC
$38
MannKind Corporation
$36
Novartis Pharmaceuticals Corporation
$33
Azurity Pharmaceuticals, Inc.
$31
Aytu BioScience, Inc
$29
IBSA Pharma Inc.
$24
Dexcom, Inc.
$24
Ascendis Pharma Inc
$24
EUSA Pharma (US) LLC
$19
Bayer Healthcare Pharmaceuticals Inc.
$17
Merck Sharp & Dohme Corporation
$16
Ultragenyx Pharmaceutical Inc.
$16
ABBVIE INC.
$16
Alexion Pharmaceuticals, Inc.
$15
Acella Pharmaceuticals, LLC
$13
Top 3 companies account for 79.2% of all-time payments
Associated products mentioned in payments ›
AFREZZA · APRISO · Adthyza · BAQSIMI · BD NANO · BD Nano · BOTOX · CYCLOSET · Crysvita · DEXCOM CGM · ELIQUIS · FARXIGA · FREESTYLE LIBRE · FreeStyle Libre · FreeStyle Libre 2 · FreeStyle Libre blood glucose Flash Monitoring System · GVOKE PFS · HUMULIN · INVOKAMET · INVOKANA · ISTURISA · JANUVIA · JARDIANCE · Kerendia · Korlym · LEQVIO · MINIMED 780G · NOCDURNA · NP Thyroid 60 · Natesto · Omnipod · Otrexup · Ozempic · PREVNAR 20 · RECORLEV · RESMETIROM · Repatha · Rybelsus · SIGNIFOR LAR · SOLIQUA 100/33 · STRENSIQ · SYNTHROID · Sylvant · Synthroid · TEPEZZA · TERIPARATIDE · TOUJEO · TRULICITY · TZIELD · Tirosint · Tymlos · UNITHROID · Vascepa · Veozah · Victoza · XARELTO · XYOSTED
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 (73%) 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.
Geographic Context
Endocrinologists within 10 mi
189
Per 100K population
55.8
County median income
$110,631
Nearest hospital
GOOD SAMARITAN HOSPITAL OF SUFFERN
4.0 mi
4.0 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. Zwickler is a mixed practice specialist, with above-average Medicare volume (top 3% in NY), with speaking/promotional industry engagement in the top 17% of NY peers, with 19 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. Zwickler experienced with blood draw (venipuncture)?
Based on Medicare claims data, Dr. Zwickler performed 1,585 blood draw (venipuncture) 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. Zwickler receive payments from pharmaceutical companies?
Yes. Dr. Zwickler received a total of $14,765 from 42 companies across 292 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. Zwickler's costs compare to other endocrinologists in Pomona?
Dr. Zwickler's average Medicare payment per service is $20. 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. Zwickler) 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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