Medicare Enrolled
Dr. John Parker, M.D.
Endocrinology · Wilmington, NC
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. Parker 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. Parker
Dr. John Parker is an endocrinology specialist in Wilmington, NC, with 20 years of NPI registration. Based on federal Medicare data, Dr. Parker performed 16,458 Medicare services across 6,086 unique beneficiaries.
Between the years covered by Open Payments, Dr. Parker received a total of $172,193 from 70 pharmaceutical and/or device companies across 1350 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. Parker 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 4% volume in NC
$172,193 industry payments
Medicare Practice Summary
Medicare Utilization ↗16,458
Medicare services
Top 4% in NC for endocrinology
6,086
Unique beneficiaries
$24
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~823 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 |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 7,200 | $18 | $33 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,378 | $8 | $25 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
1,082 | $16 | $60 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
960 | $10 | $60 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
948 | $9 | $50 |
| 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. |
711 | $122 | $285 |
| 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. |
614 | $82 | $210 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
550 | $10 | $35 |
| 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. |
367 | $16 | $60 |
| 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. |
318 | $78 | $280 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
306 | $13 | $45 |
| 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. |
274 | $25 | $108 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
262 | $29 | $75 |
| 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. |
238 | $6 | $20 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
238 | $5 | $35 |
| 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. |
225 | $9 | $56 |
| 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. |
139 | $8 | $40 |
| 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. |
120 | $25 | $101 |
| 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. |
105 | $16 | $53 |
| 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. |
73 | $40 | $70 |
| 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. |
64 | $5 | $23 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
40 | $15 | $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. |
36 | $111 | $320 |
| 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. |
30 | $6 | $30 |
| DHEA-S hormone level test A blood test that measures the level of dehydroepiandrosterone sulfate (DHEA-S), a hormone produced by the adrenal glands. |
29 | $22 | $60 |
| 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. |
24 | $19 | $74 |
| 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. |
24 | $60 | $154 |
| 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. |
22 | $35 | $279 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
18 | $22 | $40 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
18 | $29 | $55 |
| Total estradiol level test A blood test that measures the total amount of estradiol, a form of estrogen, in the body. |
17 | $27 | $62 |
| 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. |
15 | $18 | $64 |
| Follicle stimulating hormone (FSH) level A blood test to measure the level of follicle stimulating hormone, a reproductive hormone. |
13 | $18 | $50 |
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 ↗$172,193
Total received (2018-2024)
Avg $24,599/year across 7 years
Top 11% in NC for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
70
Companies
1,350
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
$113,023 (65.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$44,169 (25.7%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$15,002 (8.7%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$33,378
2023
$36,168
2022
$14,016
2021
$21,682
2020
$27,417
2019
$21,819
2018
$17,713
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$20,908
Corcept Therapeutics
$9,407
Insulet Corporation
$969
Lilly USA, LLC
$314
SANOFI-AVENTIS U.S. LLC
$300
Amgen Inc.
$252
Abbott Laboratories
$235
Boehringer Ingelheim Pharmaceuticals, Inc.
$149
Novartis Pharmaceuticals Corporation
$135
Antares Pharma, Inc.
$131
Bayer Healthcare Pharmaceuticals Inc.
$100
Averitas Pharma Inc.
$63
Xeris Pharmaceuticals, Inc.
$58
Kyowa Kirin, Inc.
$42
IBSA Pharma Inc.
$42
Radius Health, Inc.
$41
Tandem Diabetes Care, Inc.
$38
PFIZER INC.
$35
Esperion Therapeutics, Inc.
$32
RECORDATI_RARE_DISEASES_INC.
$24
Neurocrine Biosciences, Inc.
$22
AstraZeneca Pharmaceuticals LP
$19
Ascensia Diabetes Care Us Inc.
$18
Almatica Pharma LLC
$17
Acella Pharmaceuticals, LLC
$14
CeQur Corporation
$13
Top 3 companies account for 93.7% of 2024 payments
All-time payments by company (2018-2024) ›
Corcept Therapeutics
$53,929
Novo Nordisk Inc
$41,081
AstraZeneca Pharmaceuticals LP
$35,316
PFIZER INC.
$9,668
Esperion Therapeutics, Inc.
$6,651
Dexcom, Inc.
$5,729
Insulet Corporation
$4,647
Tandem Diabetes Care, Inc.
$2,758
SANOFI-AVENTIS U.S. LLC
$1,649
Lilly USA, LLC
$1,604
Amgen Inc.
$1,459
Abbott Laboratories
$1,131
Boehringer Ingelheim Pharmaceuticals, Inc.
$948
Antares Pharma, Inc.
$698
Merck Sharp & Dohme Corporation
$475
Radius Health, Inc.
$431
IBSA Pharma Inc.
$330
Amarin Pharma Inc.
$252
Bayer HealthCare Pharmaceuticals Inc.
$244
Janssen Pharmaceuticals, Inc
$243
Bayer Healthcare Pharmaceuticals Inc.
$236
Shire North American Group Inc
$226
Xeris Pharmaceuticals, Inc.
$223
Ultragenyx Pharmaceutical Inc.
$158
Novartis Pharmaceuticals Corporation
$135
CeQur Corporation
$133
EISAI INC.
$132
Amneal Pharmaceuticals LLC
$120
Regeneron Healthcare Solutions, Inc.
$116
RECORDATI_RARE_DISEASES_INC.
$98
MannKind Corporation
$92
Merck Sharp & Dohme LLC
$80
Valeritas, Inc.
$69
Senseonics, Incorporated
$67
AbbVie Inc.
$65
Averitas Pharma Inc.
$63
Horizon Therapeutics plc
$59
Kyowa Kirin, Inc.
$58
Azurity Pharmaceuticals, Inc.
$58
Ascendis Pharma Inc
$55
AbbVie, Inc.
$48
Takeda Pharmaceuticals U.S.A., Inc.
$45
Nalpropion Pharmaceuticals LLC
$40
Otsuka America Pharmaceutical, Inc.
$36
Eisai Inc.
$35
Medtronic, Inc.
$31
Mannkind Corporation
$30
Acella Pharmaceuticals, LLC
$29
Orexigen Therapeutics, Inc.
$27
Kowa Pharmaceuticals America, Inc.
$26
Currax Pharmaceuticals LLC
$26
Aegerion Pharmaceuticals, Inc.
$25
Rhythm Pharmaceuticals, Inc.
$25
Becton, Dickinson and Company
$25
Neurocrine Biosciences, Inc.
$22
Acerus Pharmaceuticals Corporation
$22
Strongbridge US INC.
$21
Ascensia Diabetes Care Us Inc.
$18
Supernus Pharmaceuticals, Inc.
$18
Almatica Pharma LLC
$17
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$17
Boston Scientific Corporation
$17
Nalpropion Pharmaceuticals, Inc.
$16
Amryt Pharma Holdings Ltd
$16
Endo Pharmaceuticals Inc.
$14
Tolmar, Inc.
$14
VIVUS, Inc.
$14
ABBVIE INC.
$12
Aytu BioScience, Inc
$12
Gilead Sciences, Inc.
$11
Top 3 companies account for 75.7% of all-time payments
Associated products mentioned in payments ›
AFREZZA · AVEED · Adthyza · BAQSIMI · BASAGLAR · BD Nano · BYDUREON · Belviq · CONTRAVE · CYCLOSET · CeQur Simplicity · Corlanor · Creon · Crysvita · Cryvista · DEXCOM CGM · DEXCOM G6 CGM SYSTEM · DIABETES - DISEASE · Dexcom CGM · Dexcom G6 Transmitter · EVENITY · EVERSENSE E3 SENSOR KIT - RETAIL · Eversense · FARXIGA · FORTEO · FREESTYLE INSULINX · FREESTYLE LIBRE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FREESTYLE PRECISION PRO · FreeStyle Libre · FreeStyle Libre 2 · FreeStyle Libre Pro · GENERAL PAIN MANAGEMENT · GVOKE HYPOPEN · GVOKE PFS · HUMULIN · INTELLIS ADAPTIVESTIM · INVOKANA · ISTURISA · Imcivree · InPen · JANUVIA · JARDIANCE · JATENZO · JUXTAPID · KEVEYIS · Kerendia · Korlym · LEQVIO · LICART · LOKELMA · LYRICA · Livalo · MACRILEN · MOUNJARO · MYALEPT · Macrilen · NATPARA · NATPARA (PARATHYROID HORMONE) · NEXLETOL · NEXLIZET · NOCDURNA · NP Thyroid 60 · Natesto · NovoLog · OCTRODE · OTREXUP · Omnipod · Ozempic · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Proclaim Family of SCS IPGs · Prolia · QSYMIA · QUTENZA · RAYOS · RECORLEV · Repatha · Rybelsus · SAMSCA · SCS leads · SIGNIFOR LAR · SOLIQUA · SOLIQUA 100/33 · SOMAVERT · STEGLATRO · STEGLUJAN · SYNTHROID · Saxenda · Synthroid · TEPEZZA · TERIPARATIDE · TOUJEO · TRADJENTA · TRULICITY · TZIELD · Tirosint · Tresiba · Tymlos · UNITHROID · V-GO · Vascepa · Victoza · Wegovy · XARELTO · XYOSTED · t-slim insulin pump · t:slim X2 Insulin Pump with Control-IQ · t:slim X2 insulin pump
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 (66%) 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
8
Per 100K population
3.5
County median income
$72,892
Nearest hospital
WILMINGTON TREATMENT CENTER
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. Parker is a mixed practice specialist, with above-average Medicare volume (top 4% in NC), with speaking/promotional industry engagement in the top 11% of NC 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. Parker experienced with denosumab injection (prolia/xgeva)?
Based on Medicare claims data, Dr. Parker performed 7,200 denosumab injection (prolia/xgeva) 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. Parker receive payments from pharmaceutical companies?
Yes. Dr. Parker received a total of $172,193 from 70 companies across 1,350 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. Parker's costs compare to other endocrinologists in Wilmington?
Dr. Parker's average Medicare payment per service is $24. 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. Parker) 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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