Gregg Alan Warshaw, M.D.
Geriatric Medicine (Family Medicine) Physician · Chapel Hill, NC
Gregg Alan Warshaw, M.D. is a geriatric medicine (family medicine) physician with a practice address in Chapel Hill, North Carolina, and NPI 1992784516, issued on Jan 12, 2006. Check the license on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregg Alan Warshaw
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- 35.052032 OH
Self-reported in NPPES; status is on the state search - Practice location
- Unc Family Medicine Ctr, Chapel Hill, NC 27599
- Phone
- (984) 974-0210
- Enumerated
- Jan 12, 2006
- Record last updated
- Mar 31, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 0604886 OH
- Medicare enrollment
- Enrolled (PECOS I20151123000862); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1976
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 44 in North Carolina → Look up another NPI →
Verify Gregg Alan Warshaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
1,335 Medicare Part D claims for 296 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 95 claims were for opioids.
Most prescribed
- Atorvastatin Calcium78 claims
- Amlodipine Besylate47 claims
- Levothyroxine Sodium44 claims
- Losartan Potassium41 claims
- Mirtazapine38 claims
- Metoprolol Succinate32 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.
Bills Medicare through 2 group practices
- Legacy Healthcare Services IncDurham, NC
- University OF North Carolina AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregg Alan Warshaw among 44 geriatric medicine (family medicine) physician records in North Carolina
Gregg Alan Warshaw, M.D. is one of 44 geriatric medicine (family medicine) physician records with a practice address in North Carolina. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 36% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1976 · median 2001 among the 20 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in North Carolina
There are 44 geriatric medicine (family medicine) physician records in North Carolina.
All 44 in North Carolina → Every provider in Chapel Hill → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Jeffrey Martin, M.D.Raleigh, NC 276021952446080
- Amish Patel, MDRaleigh, NC 276091932384955
- William Sayles, MDLouisburg, NC 275491144273632
- David FisherDurham, NC 277131982622718
- Andrea Gilroy, DPMDurham, NC 277131013265495
- Taylor Goodnough, DODurham, NC 277131598745325
- Velukumar Nanjagowder, MDDurham, NC 277131700945847
- Neil Hall, MDGreensboro, NC 274051194788877
Common questions
What is Gregg Alan Warshaw, M.D.'s NPI number?
Gregg Alan Warshaw, M.D.'s National Provider Identifier (NPI) is 1992784516, issued on Jan 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregg Alan Warshaw, M.D. located?
The NPPES record lists a practice address at Unc Family Medicine Ctr, Chapel Hill, NC, 27599. Phone: (984) 974-0210. Providers update this record themselves, so call before visiting.
How can I verify Gregg Alan Warshaw, M.D.'s license?
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 Gregg Alan Warshaw, M.D. prescribe under Medicare Part D?
In 2024, Gregg Alan Warshaw, M.D. had 1,335 Medicare Part D claims for 296 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.