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

Dr. Mathavi Sahadevan, MD

Individual provider Internal Medicine Physician · NPI 1871022095

Dr. Mathavi Sahadevan, MD is an Internal Medicine in Chesterfield, Missouri. Qualified in 2017, 9 years ago. Practices with Allergy, Asthma and Sinus Care Center, LLC, an 11-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
9
Licensed in
IL, MO
In the registry since
2017
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

16216 Baxter Rd Ste 299
Chesterfield, MO 63017-4778
Phone: (636) 536-2600
Show map & directions

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

Additional practice locations (3)

  • 1 Good Samaritan Way, Mount Vernon, IL 62864-2402 — (618) 242-4600
  • 1035 Bellevue Ave Ste 400, Saint Louis, MO 63117-1844 — (314) 925-4700
  • 9701 Landmark Parkway Dr Ste 207, Saint Louis, MO 63127-1665 — (314) 849-8700

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2021050221 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036.153168 (IL)

Record details

NPI number1871022095
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2017
Last updated in NPPESNovember 7, 2025
Certification dateNovember 7, 2025
Mailing addressPo Box 874797, Kansas City, MO 64187-4797

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Allergy, Asthma And Sinus Care Center, Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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