Colleen Christmas, M.D.
Geriatric Medicine (Internal Medicine) Physician · Baltimore, MD
Colleen Christmas, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Baltimore, Maryland, and NPI 1013968114, issued on May 13, 2006. Check the license (Maryland D51185, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Colleen Christmas
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- D51185 MD
Self-reported in NPPES; status is on the state search - Practice location
- 5505 Hopkins Bayview Cir, Baltimore, MD 21224
- Phone
- (410) 550-0925
- Enumerated
- May 13, 2006
- Record last updated
- Jan 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 691000900 MD
- Medicare enrollment
- Enrolled (PECOS I20070808000595); may accept Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 139 in Maryland → Look up another NPI →
Also registered at 5505 Hopkins Bayview Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Abadir, M.D.Geriatric Medicine (Internal Medicine) Physician1871792432
- Jeremy Barron, M.D.Geriatric Medicine (Internal Medicine) Physician1881659076
- Berny Bastiampillai, M.D.Student in an Organized Health Care Education/Training Program1588048920
- Jazmin BlackPharmacist1366810905
- Ilene Browner, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1598723074
- John Burton, M.D.Geriatric Medicine (Internal Medicine) Physician1386602878
Verify Colleen Christmas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D51185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
1,448 Medicare Part D claims for 148 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium99 claims
- Amlodipine Besylate92 claims
- Levothyroxine Sodium84 claims
- Lisinopril79 claims
- Losartan Potassium71 claims
- Metoprolol Succinate49 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
- Agape Physical Therapy And Sports Rehabilitation LPForest Hill, MD
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colleen Christmas among 139 geriatric medicine (internal medicine) physician records in Maryland
Colleen Christmas, M.D. is one of 139 geriatric medicine (internal medicine) physician records with a practice address in Maryland. 69% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 38% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1993 · median 1997 among the 66 with a school on file
- Record last updated2014 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Maryland
There are 139 geriatric medicine (internal medicine) physician records in Maryland.
All 139 in Maryland → Every provider in Baltimore → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Jeremy Barron, M.D.Baltimore, MD 212241881659076
- Michele Bellantoni, M.D.Baltimore, MD 212241275598427
- Cynthia Boyd, M.D.Baltimore, MD 212241821055310
- John Burton, M.D.Baltimore, MD 212241386602878
- Danelle Cayea, M.D.Baltimore, MD 212241487603957
- Victor Crentsil, M.D.Baltimore, MD 212241851348726
- Sheila Gonzalgo, M.D.Baltimore, MD 212241730130352
- Jennifer Hayashi, M.D.Baltimore, MD 212241497705636
Common questions
What is Colleen Christmas, M.D.'s NPI number?
Colleen Christmas, M.D.'s National Provider Identifier (NPI) is 1013968114, issued on May 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Colleen Christmas, M.D. located?
The NPPES record lists a practice address at 5505 Hopkins Bayview Cir, Baltimore, MD, 21224. Phone: (410) 550-0925. Providers update this record themselves, so call before visiting.
How can I verify Colleen Christmas, M.D.'s license?
NPPES lists Maryland license number D51185, 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 Colleen Christmas, M.D. prescribe under Medicare Part D?
In 2024, Colleen Christmas, M.D. had 1,448 Medicare Part D claims for 148 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.