Donald Hertweck, MD
NPI 1265432447 · Internal Medicine Physician · Greensboro, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Hertweck, MD is a Internal Medicine Physician provider in Greensboro, NC (NPI 1265432447).
Provider details
- NPI number
- 1265432447
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9801298 (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
20 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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 69 | 28 |
| Levothyroxine Sodium | 48 | 23 |
| Metoprolol Tartrate | 39 | 20 |
| Furosemide | 37 | 23 |
| Lorazepam | 34 | 30 |
| Oxycodone Hcl | 34 | 25 |
| Pantoprazole Sodium | 32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-28
- Last updated
- 2012-12-19
Frequently asked questions
- What is Donald Hertweck's NPI number?
- Donald Hertweck's National Provider Identifier (NPI) is 1265432447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Hertweck's specialty?
- Donald Hertweck is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Hertweck located?
- Donald Hertweck's practice location on file with NPPES is 2500 Summit Ave, Greensboro, NC 27405-4522.
- What is Donald Hertweck's phone number?
- The practice phone number listed in the NPPES registry for Donald Hertweck is (336) 621-2500.
- Does Donald Hertweck accept Medicare?
- Donald Hertweck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Hertweck's NPI active?
- Yes — Donald Hertweck's NPI (1265432447) is active in the NPPES registry as of the last update on 2012-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.