Mark Warren, M.D.
NPI 1629073010 · Endocrinology, Diabetes & Metabolism Physician · Greenville, NC
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Warren, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Greenville, NC (NPI 1629073010).
Provider details
- NPI number
- 1629073010
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 37973 (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
21 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
9,623 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,101 | $119 |
| Hemoglobin A1c Level83036 | 837 | $10 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 702 | $9 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 647 | $3 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 581 | $16 |
| Thyroxine (thyroid Chemical), Free84439 | 571 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 174 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 821 | 135 |
| Levothyroxine Sodium | 696 | 175 |
| Metformin Hclbrand: Metformin Hcl Er | 335 | 91 |
| Atorvastatin Calcium | 327 | 90 |
| Insulin Degludecbrand: Tresiba Flextouch U-200 | 261 | 49 |
| Levothyroxine Sodiumbrand: Synthroid | 260 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$65,630 across 188 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
- 2005-06-14
- Last updated
- 2015-06-29
Frequently asked questions
- What is Mark Warren's NPI number?
- Mark Warren's National Provider Identifier (NPI) is 1629073010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Warren's specialty?
- Mark Warren is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Warren located?
- Mark Warren's practice location on file with NPPES is 1006 Wh Smith Blvd, Greenville, NC 27834-5194.
- What is Mark Warren's phone number?
- The practice phone number listed in the NPPES registry for Mark Warren is (252) 413-6683.
- Does Mark Warren accept Medicare?
- Mark Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Warren's NPI active?
- Yes — Mark Warren's NPI (1629073010) is active in the NPPES registry as of the last update on 2015-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.