Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Ali Tabatabai, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1639204753

Ali Tabatabai, MD practises Internal Medicine in Baltimore, Maryland. Graduated from University of Maryland School of Medicine in 2004, 22 years ago. Practices with University of Maryland St Joseph Medical Group LLC, a 288-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
22
Trained at
University of Maryland School of Medicine
Licensed in
MD
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

22 S Greene St
Baltimore, MD 21201-1544 Not confirmed with CMS for 16 years — call before visiting
Phone: (410) 328-6704
Fax: (410) 328-4124
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D66267 (MD)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence D66267 (MD)

Record details

NPI number1639204753
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 21, 2007
Last updated in NPPESApril 14, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice University Of Maryland St Joseph Medical Group Llc — 288 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients132
Services billed 381 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Maryland St Joseph Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 288 clinicians in the practice; 12 are shown here.

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