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

Mitchell Pfeiffer, MD

Individual provider Internal Medicine Physician · NPI 1366437634

Mitchell Pfeiffer, MD is registered under Critical Care (Intensivists) in Indianapolis, Indiana. Graduated from New York Medical College in 1985, 41 years ago. Practices with St Vincent Medical Group Inc, a 727-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
41
Trained at
New York Medical College
Licensed in
IN
In the registry since
2005
Specialties on file
3
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

8333 Naab Rd Ste 250
Indianapolis, IN 46260-1983
Phone: (317) 338-5100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 01042192A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01042192A (IN)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 01042192A (IN)

Record details

NPI number1366437634
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 13, 2005
Last updated in NPPESSeptember 8, 2023
Certification dateSeptember 8, 2023

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesINTERNAL MEDICINE, PULMONARY DISEASE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1985 (41 years in practice)
Group practice St Vincent Medical Group Inc — 727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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 patients338
Services billed 829 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $221 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at St Vincent Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 727 clinicians in the practice; 12 are shown here.

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