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Internal Medicine

Joshua Birnbaum

Works at hospitals in Randallstown, MD · Baltimore, MD · Maryland

Summary

Joshua Birnbaum (Internal Medicine) is listed by Medicare at 2 hospitals in Randallstown, MD and Baltimore, MD. NPI 1396042727. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Joshua Birnbaum, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
17Years since medical school (graduated 2009)
MaleGender (as listed)
Sinai Hospital of Baltimore, IncGroup practice (+1 more)

Quick answers

Which hospitals does Joshua Birnbaum work at?
Medicare's official clinician data lists Joshua Birnbaum at 2 hospitals: Northwest Hospital Center and Sinai Hospital of Baltimore. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Joshua Birnbaum see patients?
Medicare's clinician data lists 3 practice locations, including Baltimore, MD and Randallstown, MD. Call before your visit to confirm the address.
What is Joshua Birnbaum's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Joshua Birnbaum accept Medicare assignment?
Medicare's clinician data says Joshua Birnbaum may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Joshua Birnbaum?
(410) 521-2200, as listed in official Medicare / NPI Registry data.
What is Joshua Birnbaum's NPI number?
1396042727. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Joshua Birnbaum works

Medicare's Facility Affiliation Data lists Joshua Birnbaum at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Joshua Birnbaum is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Joshua Birnbaum as a member of these groups (CMS data updated 2026-10-02).

  • Sinai Hospital of Baltimore, Inc380 clinicians in the group
  • Northwest Hospital Center Inc87 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Baltimore

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

All internal medicine doctors in Baltimore →

Clinician information

Graduation year2009
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1396042727
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians