Registry data as of Aug 27, 2026

William Bair, M.D.

Specialist · Cambridge, MD

William Bair, M.D. is a specialist with a practice address in Cambridge, Maryland, and NPI 1164460416, issued on Jun 2, 2006. Check the license (Maryland D00432238, as entered in NPPES) with the Maryland board that licenses this profession; 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
1164460416
Name
William Bair
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
D00432238 MD
Self-reported in NPPES; status is on the state search
Practice location
100 Bramble St, Cambridge, MD 21613
Phone
(410) 228-4616
Enumerated
Jun 2, 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 100 Bramble St

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

  1. Patricia Johnson, D.O.Family Medicine Physician1093822538
  2. Kenneth Judd, M.D.Dermatology Physician1366416810
  3. Lisa Marshall, FNPFamily Nurse Practitioner1316298839
  4. Lois Narr, D.O.Family Medicine Physician1437265014
  5. Leona Odemena, DPMPodiatrist1740386044
  6. Nancy Oliver, MSN, CRNP-FFamily Nurse Practitioner1447577614

Verify William Bair in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license D00432238
    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
Find 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.

76% fewer Medicare Part D claims than the average specialist in 2024

359 Medicare Part D claims for 158 beneficiaries, against an average of 1,524 among the 12,477 providers of this specialty who prescribed in Part D. 133 claims were for opioids.

  1. William Bair359
  2. Specialty average1,524

Most prescribed

  1. Oxycodone-Acetaminophen69 claims
  2. Tramadol Hcl26 claims
  3. Procto-Med Hc24 claims
  4. Oxycodone Hcl19 claims
  5. Naproxen17 claims
  6. Mupirocin16 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.

Industry payments in 2024: $144.23

5 payments, mostly food and beverage; the largest payer was Ethicon US, LLC. The 9,482 providers of this specialty with any payment received $4,756.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Bair$144.23
  2. Specialty average$4,756.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. University OF Maryland Community Medical Group IncEaston, 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.

4 specialist records list a Cambridge practice address

They are 4 of the 333 NPPES records with a Cambridge practice address, and 1,128 specialist records in Maryland.

Other specialist records in Maryland

  1. Wondwosen AbdiBaltimore, MD1194790709
  2. Swapna Abhyankar, M.D.Laurel, MD1477533230
  3. Rifat AbousyBaltimore, MD1487621546
  4. Marwa Adi, MDChevy Chase, MD1104820190
  5. Bettina Adjei, MDEldersburg, MD1154300937
  6. Richard Adler, M.D.Baltimore, MD1629076179
  7. Ali Afrookteh, MD, MACPFrederick, MD1720069214
  8. Ashok AgrawalBaltimore, MD1033180070
  9. Ernesto Jr. Aguila, P.T.Oxon Hill, MD1053430140
  10. Anees Ahsan, M.D.Silver Spring, MD1073572186

Common questions

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

William Bair, M.D.'s National Provider Identifier (NPI) is 1164460416, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Bair, M.D. located?

The NPPES record lists a practice address at 100 Bramble St, Cambridge, MD, 21613. Phone: (410) 228-4616. Providers update this record themselves, so call before visiting.

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

NPPES lists Maryland license number D00432238, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does William Bair, M.D. prescribe under Medicare Part D?

In 2024, William Bair, M.D. had 359 Medicare Part D claims for 158 beneficiaries; the average among specialist prescribers was 1,524. 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.