Jay Siwek, MD
Family Medicine Physician · Colmar Manor, MD
Jay Siwek, MD is a family medicine physician with a practice address in Colmar Manor, Maryland, and NPI 1821021346, issued on Jul 8, 2006. Check the license on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jay Siwek
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD11865 DC
Self-reported in NPPES; status is on the state search - Practice location
- 4151 Bladensburg RD, Colmar Manor, MD 20722
- Phone
- (202) 269-7172
- Enumerated
- Jul 8, 2006
- Record last updated
- Mar 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 4151 Bladensburg RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Georgette Adae-Mensah, MDStudent in an Organized Health Care Education/Training Program1073455648
- Rachelle Barrett Toman, M.D., PH.D.Family Medicine Physician1720233406
- Aerielle BookerStudent in an Organized Health Care Education/Training Program1417377011
- Tracy Cassagnol, MDStudent in an Organized Health Care Education/Training Program1295078921
- Kharastin Chea-Howard, MD, MPHStudent in an Organized Health Care Education/Training Program1629862792
- William Gallagher, MDFamily Medicine Physician1437187648
Verify Jay Siwek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14 family medicine physician records list a practice address in Colmar Manor
They are 14 of the 40 NPPES records with a practice address in Colmar Manor, and 1,912 family medicine physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 14 in Colmar Manor → All 1,912 in Maryland → Every provider in Colmar Manor →
Other family medicine physician records in Maryland
- Amelia Abban, CRNP-BCLaurel, MD1023761970
- Peter Abbott, MDWillards, MD1982603759
- Hanan Aboumatar, MD, MPHBaltimore, MD1437526746
- Ndubuisi Achufusi, M.D.Greenbelt, MD1124057260
- Jose Acol, MDMount Airy, MD1801890306
- Phyllis Acquah, M.D.Silver Spring, MD1285996868
- Charles Adamo, M.D.Annapolis, MD1063437358
- Gillian Adams, M.D.Bel Air, MD1912086794
- Jerry Adams, M.D.Lavale, MD1710088265
- Ifeoluwa AdekanyeDundalk, MD1699419804
Common questions
What is Jay Siwek, MD's NPI number?
Jay Siwek, MD's National Provider Identifier (NPI) is 1821021346, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jay Siwek, MD located?
The NPPES record lists a practice address at 4151 Bladensburg RD, Colmar Manor, MD, 20722. Phone: (202) 269-7172. Providers update this record themselves, so call before visiting.
How can I verify Jay Siwek, MD's license?
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. 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.