William Thomas, M.D.
Internal Medicine Physician · Columbia, MD
William Thomas, M.D. is an internal medicine physician with a practice address in Columbia, Maryland, and NPI 1124185939, issued on Jan 2, 2007. Check the license on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Thomas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 5565 Sterrett PL, Columbia, MD 21044
- Phone
- (410) 772-6544
- Enumerated
- Jan 2, 2007
- Entity
- Type 1 · individual
Also registered at 5565 Sterrett PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Thomas 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
95 internal medicine physician records list a Columbia practice address
They are 95 of the 6,690 NPPES records with a Columbia practice address, and 4,220 internal medicine physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 95 in Columbia → All 4,220 in Maryland → Every provider in Columbia →
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Common questions
What is William Thomas, M.D.'s NPI number?
William Thomas, M.D.'s National Provider Identifier (NPI) is 1124185939, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Thomas, M.D. located?
The NPPES record lists a practice address at 5565 Sterrett PL, Columbia, MD, 21044. Phone: (410) 772-6544. Providers update this record themselves, so call before visiting.
How can I verify William Thomas, M.D.'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), 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.