John Parker, M.D.
NPI 1457345928 · Endocrinology, Diabetes & Metabolism Physician · Wilmington, NC
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Parker, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Wilmington, NC (NPI 1457345928).
Provider details
- NPI number
- 1457345928
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 200100175 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
8,340 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,209 | $9 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 905 | $16 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 793 | $10 |
| Thyroxine (thyroid Chemical), Free84439 | 788 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 627 | $169 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 459 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 866 | 279 |
| Levothyroxine Sodiumbrand: Synthroid | 513 | 139 |
| Semaglutidebrand: Ozempic | 325 | 86 |
| Metformin Hclbrand: Metformin Hcl Er | 284 | 91 |
| Liothyronine Sodium | 263 | 89 |
| Methimazole | 164 | 54 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33,378 across 164 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-09
- Last updated
- 2021-02-08
- Certified
- 2021-02-08
Frequently asked questions
- What is John Parker's NPI number?
- John Parker's National Provider Identifier (NPI) is 1457345928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Parker's specialty?
- John Parker is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is John Parker located?
- John Parker's practice location on file with NPPES is 2421 Silver Stream Ln, Wilmington, NC 28401-7684.
- What is John Parker's phone number?
- The practice phone number listed in the NPPES registry for John Parker is (910) 341-3300.
- Does John Parker accept Medicare?
- John Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Parker's NPI active?
- Yes — John Parker's NPI (1457345928) is active in the NPPES registry as of the last update on 2021-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.