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

Dr. Ranjani P Ramanathan, MD

Individual provider Internal Medicine Physician · NPI 1639212335

Dr. Ranjani P Ramanathan, MD is an Endocrinology in Saint Peters, Missouri. Qualified in 2002, 24 years ago. Practices with Physician Groups Lc, a 524-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
24
Licensed in
MO
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.

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Practice location Address checks out

201 Bjc Saint Peters Dr Ste 100
Saint Peters, MO 63376-3386
Phone: (636) 916-7235
Fax: (636) 916-9850
Show map & directions

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

Additional practice locations (1)

  • 201 Bjc Saint Peters Dr Ste 200, Saint Peters, MO 63376-3386 — (636) 916-9615

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 2007022069 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2007022069 (MO)

Record details

NPI number1639212335
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 14, 2007
Last updated in NPPESSeptember 25, 2025
Certification dateSeptember 25, 2025

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Physician Groups Lc — 524 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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