John Griffin, MD
NPI 1689753923 · Internal Medicine Physician · Greensboro, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Griffin, MD is a Internal Medicine Physician provider in Greensboro, NC (NPI 1689753923).
Provider details
- NPI number
- 1689753923
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9600929 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 189 | 95 |
| Amlodipine Besylate | 174 | 84 |
| Rosuvastatin Calcium | 130 | 66 |
| Levothyroxine Sodium | 66 | 37 |
| Telmisartan | 65 | 33 |
| Metformin Hclbrand: Metformin Hcl Er | 51 | 24 |
| Simvastatin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-06
- Last updated
- 2021-04-19
- Certified
- 2021-04-19
Frequently asked questions
- What is John Griffin's NPI number?
- John Griffin's National Provider Identifier (NPI) is 1689753923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Griffin's specialty?
- John Griffin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Griffin located?
- John Griffin's practice location on file with NPPES is 301 E Wendover Ave, Greensboro, NC 27401-1230.
- What is John Griffin's phone number?
- The practice phone number listed in the NPPES registry for John Griffin is (336) 274-3241.
- Does John Griffin accept Medicare?
- John Griffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Griffin's NPI active?
- Yes — John Griffin's NPI (1689753923) is active in the NPPES registry as of the last update on 2021-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.