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

Individual provider Internal Medicine Physician · NPI 1669588638

Jambunathan Mahadevan, MD is an Internal Medicine in St. Louis, Missouri. Qualified in 1971, 55 years ago. Accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
55
Licensed in
MO
In the registry since
2006
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

3535 S Jefferson Ave Ste 304
St. Louis, MO 63118
Phone: (314) 865-6585
Fax: (314) 865-6599
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence R7375 (MO)

Record details

NPI number1669588638
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESAugust 5, 2010
Mailing addressPo Box 775578, St Louis, MO 63177-5578

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1971 (55 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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