NPPES file of Aug 9, 2026

William D. Trainor, M.D.

Pulmonary Disease Physician · Chestertown, MD

William D. Trainor, M.D. is a pulmonary disease physician with a practice address in Chestertown, Maryland, and NPI 1134123771, issued on Jun 10, 2005. Check the license (Maryland D0026789, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134123771
Name
William D. Trainor
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
D0026789 MD
Self-reported in NPPES; status is on the state search
Practice location
122 Speer RD, Chestertown, MD 21620
Phone
(410) 778-0200
Enumerated
Jun 10, 2005
Record last updated
Sep 11, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(410) 778-6647
Medicaid ID
400993200 MD
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 122 Speer RD

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

  1. Helen Noble, M.D.Internal Medicine Physician1275537896
  2. Michael Peimer, M.D.Internal Medicine Physician1306840939

Verify William D. Trainor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0026789
    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

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Pulmonary Disease Physician providers in Maryland

There are 342 pulmonary disease physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other pulmonary disease physician records in Maryland

  1. Joshua Aaron, MDElkton, MD1396703351
  2. Juan Abril, M.D.Chevy Chase, MD1144421934
  3. Lev Agarunov, M.D.Frederick, MD1316067929
  4. Kaiser Ahmad, M.DColumbia, MD1770588832
  5. Kalim Ahmed, MDHagerstown, MD1194709204
  6. Gaurav Ajmani, MDBaltimore, MD1780177238
  7. Jason Akulian, M.D.Baltimore, MD1538353958
  8. Eli Alegado, MDBrooklyn, MD1437224656
  9. Ahmad Alkhatatneh, MDWhite Plains, MD1003338716
  10. Pamela Amelung, M.D.Baltimore, MD1215998281

Common questions

What is William D. Trainor, M.D.'s NPI number?

William D. Trainor, M.D.'s National Provider Identifier (NPI) is 1134123771, issued on Jun 10, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William D. Trainor, M.D. located?

The NPPES record lists a practice address at 122 Speer RD, Chestertown, MD, 21620. Phone: (410) 778-0200. Providers update this record themselves, so call before visiting.

How can I verify William D. Trainor, M.D.'s license?

NPPES lists Maryland license number D0026789, 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), 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.