Registry data as of Aug 27, 2026

Gregory Bassmann, MD

Pulmonary Disease Physician · Baltimore, MD

Gregory Bassmann, MD is a pulmonary disease physician with a practice address in Baltimore, Maryland, and NPI 1174781611, issued on May 31, 2008. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1174781611
Name
Gregory Bassmann
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
Practice location
6565 N Charles St, Baltimore, MD 21204
Phone
(443) 849-3901
Enumerated
May 31, 2008
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 6565 N Charles St

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

  1. Abigail Adams, CRNPPediatric Nurse Practitioner1962886317
  2. Ashkan Akhavan Malayeri, MDDiagnostic Radiology Physician1689822009
  3. Raya Armaly, MDOphthalmology Physician1326033093
  4. David Arnold, M.D.Psychiatry Physician1700852084
  5. Michael Asike, M.D.Gastroenterology Physician1619014214
  6. G. Bathon, M.D.Specialist1225028830

Verify Gregory Bassmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck 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.

30% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

1,054 Medicare Part D claims for 203 beneficiaries, against an average of 1,498 among the 6,594 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.

  1. Gregory Bassmann1,054
  2. Specialty average1,498

Most prescribed

  1. Albuterol Sulfate Hfa158 claims
  2. Trelegy Ellipta102 claims
  3. Montelukast Sodium80 claims
  4. Breztri Aerosphere77 claims
  5. Azelastine Hcl56 claims
  6. Prednisone55 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.

One hospital or facility affiliation

  1. Greater Baltimore Medical Center IncBaltimore, MD

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Pulmonary Disease Physician providers in Maryland

There are 224 pulmonary disease physician records in Maryland.

Other pulmonary disease physician records in Maryland

  1. Lev Agarunov, M.D.Frederick, MD1316067929
  2. Kalim Ahmed, MDHagerstown, MD1194709204
  3. Ahmad Alkhatatneh, MDWhite Plains, MD1003338716
  4. Muhtadi Alnababteh, MDBaltimore, MD1164943825
  5. Susan Andrews, M.D.Berlin, MD1295786184
  6. Javeria AnwarCumberland, MD1396238846
  7. Gregory Argyros, MDOlney, MD1437129137
  8. Darwin Ashbaker, M.D.Baltimore, MD1114286127
  9. Muhammad Ashraf, MDHagerstown, MD1952385155
  10. Raja Ayash, M.D.Baltimore, MD1285603498

Common questions

What is Gregory Bassmann, MD's NPI number?

Gregory Bassmann, MD's National Provider Identifier (NPI) is 1174781611, issued on May 31, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Bassmann, MD located?

The NPPES record lists a practice address at 6565 N Charles St, Baltimore, MD, 21204. Phone: (443) 849-3901. Providers update this record themselves, so call before visiting.

How can I verify Gregory Bassmann, 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.

How much does Gregory Bassmann, MD prescribe under Medicare Part D?

In 2024, Gregory Bassmann, MD had 1,054 Medicare Part D claims for 203 beneficiaries; the average among pulmonary disease physician prescribers was 1,498. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

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.