Registry data as of Aug 27, 2026

Walter Basen, M.D.

Diagnostic Radiology Physician · Germantown, MD

Walter Basen, M.D. is a diagnostic radiology physician with a practice address in Germantown, Maryland, and NPI 1437120102, issued on Jan 30, 2006. Check the license (Maryland D18518, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1437120102
Name
Walter Basen
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
D18518 MD
Self-reported in NPPES; status is on the state search
Practice location
20410 Observation Dr, Germantown, MD 20876
Phone
(301) 948-5700
Enumerated
Jan 30, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 20410 Observation Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Keshia AlfredClinical Social Worker1518673748
  2. Brenna Anderson, MS, BCBABehavior Analyst1265106603
  3. Renu Berry, M.D.Diagnostic Radiology Physician1356312201
  4. Alan Bobb, M.D.Diagnostic Radiology Physician1669443321
  5. Bruce Bortnick, M.D.Diagnostic Radiology Physician1740251271
  6. Jonathan Bowles, M.D.Diagnostic Radiology Physician1083685853

Verify Walter Basen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D18518
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

14 diagnostic radiology physician records list a Germantown practice address

They are 14 of the 1,327 NPPES records with a Germantown practice address, and 770 diagnostic radiology physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other diagnostic radiology physician records in Maryland

  1. Robert Abbott, MDBaltimore, MD1427094846
  2. Amir Abdelmalik, MDBaltimore, MD1093967390
  3. Laurie Abrams, M.D.Owings Mills, MD1184622615
  4. George Adams, M.D.Annapolis, MD1407858350
  5. Rizwana Afzal, M.D.Frederick, MD1144330101
  6. Artin Aharonian, M.D.Silver Spring, MD1992740187
  7. Ghasan Ahmad, MDBaltimore, MD1093004939
  8. Ayahallah AhmedBaltimore, MD1295397214
  9. Imran Ahmed, D.OBaltimore, MD1003202664
  10. Nabid AhmedBaltimore, MD1104404094

Common questions

What is Walter Basen, M.D.'s NPI number?

Walter Basen, M.D.'s National Provider Identifier (NPI) is 1437120102, issued on Jan 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walter Basen, M.D. located?

The NPPES record lists a practice address at 20410 Observation Dr, Germantown, MD, 20876. Phone: (301) 948-5700. Providers update this record themselves, so call before visiting.

How can I verify Walter Basen, M.D.'s license?

NPPES lists Maryland license number D18518, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.