Richard Colgan, MD
Family Medicine Physician · Baltimore, MD
Richard Colgan, MD is a family medicine physician with a practice address in Baltimore, Maryland, and NPI 1760421549, issued on Jun 6, 2006. Check the license (Maryland D31188, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Richard Colgan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- D31188 MD
Self-reported in NPPES; status is on the state search - Practice location
- 29 South Paca Street, Baltimore, MD 21201
- Phone
- (410) 328-8792
- Enumerated
- Jun 6, 2006
- Record last updated
- May 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (410) 328-8726
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 29 South Paca Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vivienne Rose, MDSpecialist1770591513
Verify Richard Colgan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D31188Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average family medicine physician in 2024
1,145 Medicare Part D claims for 143 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium113 claims
- Amlodipine Besylate69 claims
- Losartan Potassium54 claims
- Lisinopril41 claims
- Hydrochlorothiazide40 claims
- Gabapentin30 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.
Richard Colgan among 1,912 family medicine physician records in Maryland
Richard Colgan, MD is one of 1,912 family medicine physician records with a practice address in Maryland. 73% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 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 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Maryland
There are 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Baltimore → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Beth Barnet, M.D.Baltimore, MD 212011487693370
- Robert Barthel, M.D., M.H.S.Baltimore, MD 212011982681581
- Stephanie Davis, MDBaltimore, MD 212011013976091
- Richard Dressler, M.D.Baltimore, MD 212011811952807
- Lenonie Hanley, M.DBaltimore, MD 212011255352811
- Niharika Khanna, MBBS, MD, DGOBaltimore, MD 212011225078678
- Eduardo Leon Guerrero, M.D.Baltimore, MD 212011407817778
- Catherine Maslen, M.D.Baltimore, MD 212011861435604
Common questions
What is Richard Colgan, MD's NPI number?
Richard Colgan, MD's National Provider Identifier (NPI) is 1760421549, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Colgan, MD located?
The NPPES record lists a practice address at 29 South Paca Street, Baltimore, MD, 21201. Phone: (410) 328-8792. Providers update this record themselves, so call before visiting.
How can I verify Richard Colgan, MD's license?
NPPES lists Maryland license number D31188, 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.
How much does Richard Colgan, MD prescribe under Medicare Part D?
In 2024, Richard Colgan, MD had 1,145 Medicare Part D claims for 143 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.