Gregory Underwood, MD
Internal Medicine Physician · Charlotte, NC
Gregory Underwood, MD is an internal medicine physician with a practice address in Charlotte, North Carolina, and NPI 1871513986, issued on Jul 20, 2006. Check the license (North Carolina 29068, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Underwood
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 29068 NC
Self-reported in NPPES; status is on the state search - Practice location
- 4525 Cameron Valley Pkwy, Charlotte, NC 28211
- Phone
- (704) 355-5100
- Enumerated
- Jul 20, 2006
- Record last updated
- Mar 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 4525 Cameron Valley Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Underwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 29068Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
61 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Acyclovir17 claims
- Famotidine12 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.
Gregory Underwood among 4,056 internal medicine physician records in North Carolina
Gregory Underwood, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2021 · 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).
536 internal medicine physician records list a practice address in Charlotte
They are 536 of the 23,603 NPPES records with a practice address in Charlotte, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Charlotte → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Brady, MDCharlotte, NC 282111780684597
- William Cappleman, M.D.Charlotte, NC 282111265466932
- Gregory Collins, MDCharlotte, NC 282111700810488
- Murray Craven, MDCharlotte, NC 282111649200940
- Michael Johnson, MDCharlotte, NC 282111437174000
- Dennis Layton, M.D.Charlotte, NC 282111548290802
- Lawrence Moffatt, MDCharlotte, NC 282111427026798
- Erika Myers, DOCharlotte, NC 282111558316554
Common questions
What is Gregory Underwood, MD's NPI number?
Gregory Underwood, MD's National Provider Identifier (NPI) is 1871513986, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Underwood, MD located?
The NPPES record lists a practice address at 4525 Cameron Valley Pkwy, Charlotte, NC, 28211. Phone: (704) 355-5100. Providers update this record themselves, so call before visiting.
How can I verify Gregory Underwood, MD's license?
NPPES lists North Carolina license number 29068, 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 Gregory Underwood, MD prescribe under Medicare Part D?
In 2024, Gregory Underwood, MD had 61 Medicare Part D claims; 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.