Harold O. Gaines, M.D.
Emergency Medicine Physician · La Plata, MD
Harold O. Gaines, M.D. is an emergency medicine physician with a practice address in La Plata, Maryland, and NPI 1255328811, issued on Sep 29, 2005. Check the license (Maryland D44230, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Harold O. Gaines
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- D44230 MD
D0044230 MD
Self-reported in NPPES; status is on the state search - Practice location
- 701 Charles St, La Plata, MD 20646
- Phone
- (301) 609-4000
- Enumerated
- Sep 29, 2005
- Record last updated
- Mar 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (301) 609-4410
- Medicare enrollment
- Enrolled (PECOS I20050328000856); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,190 in Maryland → Look up another NPI →
Also registered at 701 Charles St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dale Barnes, M.D.Specialist1952398372
- Austin Bentley, PAPhysician Assistant1417531765
- Brooks Briel, MDEmergency Medicine Physician1336632421
- Ann Buckler, C.R.N.A.Certified Registered Nurse Anesthetist1386797520
- Fernando Daniels, M.D.Emergency Medicine Physician1962402297
- Bronwyn Daugherty, CRNACertified Registered Nurse Anesthetist1760535397
Verify Harold O. Gaines in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D44230Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Anacostia Medical AssociatesLa Plata, MD
- University OF Maryland Community Medical Group IncWaldorf, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold O. Gaines among 1,190 emergency medicine physician records in Maryland
Harold O. Gaines, M.D. is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% 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, 95% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1987 · median 2010 among the 571 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 emergency medicine physician records list a practice address in La Plata
They are 7 of the 462 NPPES records with a practice address in La Plata, and 1,190 emergency medicine physician records in Maryland.
All 1,190 in Maryland → Every provider in La Plata → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brooks Briel, MDLa Plata, MD 206461336632421
- Fernando Daniels, M.D.La Plata, MD 206461962402297
- Patricia Melton, M.D.La Plata, MD 206461477553824
- Babatunde OrogbemiLa Plata, MD 206461568652717
- Ogheneochuko Oteri, M.DLa Plata, MD 206461073741898
- Ronald ValenciaLa Plata, MD 206461710332887
- James DamaloujiLeonardtown, MD 206501023042694
- James McQuiston, M.D.Leonardtown, MD 206501326071994
Common questions
What is Harold O. Gaines, M.D.'s NPI number?
Harold O. Gaines, M.D.'s National Provider Identifier (NPI) is 1255328811, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Harold O. Gaines, M.D. located?
The NPPES record lists a practice address at 701 Charles St, La Plata, MD, 20646. Phone: (301) 609-4000. Providers update this record themselves, so call before visiting.
How can I verify Harold O. Gaines, M.D.'s license?
NPPES lists Maryland license number D44230, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.