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

Chelsea Ann Therrien, MD

Individual provider Internal Medicine Physician · NPI 1215391388

Chelsea Ann Therrien, MD is an Internal Medicine in Tulsa, Oklahoma. Graduated from University of Texas Medical Branch at Galveston in 2016, 10 years ago. Practices with Kelsey-Seybold Medical Group, PLLC, a 942-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oklahoma and Texas.

Years since qualifying
10
Trained at
University of Texas Medical Branch at Galveston
Licensed in
OK, TX
In the registry since
2016
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

4502 E 41st St
Tulsa, OK 74135-2536
Phone: (918) 660-3464
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1900 North Loop W Ste 310, Houston, TX 77018-8100 — (713) 442-3800

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 32246 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence S3938 (TX)

Record details

NPI number1215391388
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2016
Last updated in NPPESDecember 30, 2025
Certification dateDecember 30, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 2016 (10 years in practice)
Group practice Kelsey-Seybold Medical Group, Pllc — 942 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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