Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Alexander C Gerhart, MD

Individual provider Anesthesiology Physician · NPI 1922282607

Alexander C Gerhart, MD practises Anesthesiology in Boston, Massachusetts. Graduated from Jefferson Medical College of Thomas Jefferson University in 2004, 22 years ago. Practices with Commonwealth Anesthesia Associates, Inc, a 86-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
22
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
MA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Feldberg 407 330 Brookline Ave
Boston, MA 02215 Not confirmed with CMS for 18 years — call before visiting
Phone: (617) 667-3112
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 234384 (MA)

Record details

NPI number1922282607
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 18, 2007
Last updated in NPPESDecember 18, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2004 (22 years in practice)
Group practice Commonwealth Anesthesia Associates, Inc — 86 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 patients256
Services billed 280 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Commonwealth Anesthesia Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 86 clinicians in the practice; 12 are shown here.

Other providers in Boston