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Infectious Disease

William R. Bishai, MD

Works at hospitals in Baltimore, MD · Maryland

Summary

Dr. William R. Bishai, MD is an infectious disease doctor at 5601 Lloch Raven Blvd, Baltimore, MD 21239. Phone: (443) 444-4714. May accept Medicare assignment. NPI 1699731372. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 5601 Lloch Raven Blvd, Baltimore, MD 21239 · Directions (2 more locations)
  • Phone: (443) 444‑4714
  • Medicare: May accept Medicare assignment
  • Hospital: The Johns Hopkins Hospital
  • Group practice: Johns Hopkins University (+1 more)
  • Medical school: Harvard Medical School · graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about William R. Bishai, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does William R. Bishai accept Medicare assignment?
Medicare's clinician data says William R. Bishai may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is William R. Bishai's NPI number?
1699731372. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William R. Bishai works

Medicare's Facility Affiliation Data lists William R. Bishai at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where William R. Bishai is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists William R. Bishai as a member of these groups (CMS data updated October 2, 2026).

  • Johns Hopkins University2,909 clinicians in the group
  • Johns Hopkins University713 clinicians in the group

Specialties

Find other Infectious Disease doctors in Maryland →

Other infectious disease doctors in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All infectious disease doctors in Baltimore →

Other clinicians in Johns Hopkins University

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1699731372
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians