Donald Edward Hertweck, MD
Internal Medicine Physician · Greensboro, NC
Donald Edward Hertweck, MD is an internal medicine physician with a practice address in Greensboro, North Carolina, and NPI 1265432447, issued on Jul 28, 2005. Check the license (North Carolina 9801298, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Donald Edward Hertweck
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9801298 NC
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Summit Ave, Greensboro, NC 27405
- Phone
- (336) 621-2500
- Enumerated
- Jul 28, 2005
- Record last updated
- Dec 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (336) 478-2541
- Medicaid ID
- 89127KV NC
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 2500 Summit Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald Edward Hertweck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 9801298Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,285 Medicare Part D claims for 316 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 98 claims were for opioids.
Most prescribed
- Amlodipine Besylate69 claims
- Levothyroxine Sodium48 claims
- Metoprolol Tartrate39 claims
- Furosemide37 claims
- Lorazepam34 claims
- Oxycodone Hcl34 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Donald Edward Hertweck among 4,056 internal medicine physician records in North Carolina
Donald Edward Hertweck, MD is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2012 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
149 internal medicine physician records list a practice address in Greensboro
They are 149 of the 8,190 NPPES records with a practice address in Greensboro, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Greensboro → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ravisankar Avva, MDGreensboro, NC 274051861427494
- Eric Dean, MDGreensboro, NC 274051154383461
- Rita LaysonGreensboro, NC 274051821045063
- Edgardo Maldonado, MDGreensboro, NC 274051346279981
- Juan-Carlos Monguilod, M.D.Greensboro, NC 274051639115298
- Daniel Paterson, MDGreensboro, NC 274051497774178
- Mark Perini, MDGreensboro, NC 274051538185574
- John Russo, MDGreensboro, NC 274051215957303
Common questions
What is Donald Edward Hertweck, MD's NPI number?
Donald Edward Hertweck, MD's National Provider Identifier (NPI) is 1265432447, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald Edward Hertweck, MD located?
The NPPES record lists a practice address at 2500 Summit Ave, Greensboro, NC, 27405. Phone: (336) 621-2500. Providers update this record themselves, so call before visiting.
How can I verify Donald Edward Hertweck, MD's license?
NPPES lists North Carolina license number 9801298, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Donald Edward Hertweck, MD prescribe under Medicare Part D?
In 2024, Donald Edward Hertweck, MD had 1,285 Medicare Part D claims for 316 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.