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

Katherine Keller, DO

Individual provider Internal Medicine Physician · NPI 1568854404

Katherine Keller, DO is a Rheumatology in Portland, Maine. Qualified in 2015, 11 years ago. Practices with Rheumatology Associates PA, a 10-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Kentucky and Maine.

Years since qualifying
11
Licensed in
KY, ME
In the registry since
2015
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

51 Sewall St Ste 1
Portland, ME 04102-2697
Phone: (207) 774-5761
Fax: (207) 874-7478
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 740 S. Limestone, Room J515, Lexington, KY 40536 — (859) 323-5921
  • 22 Bramhall St, Portland, ME 04102-3134 — (207) 662-0001

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence DO3067 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence TP17026 (ME)
Rheumatology Physician Taxonomy 207RR0500X · Licence 04324 (KY)

Record details

NPI number1568854404
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 2, 2015
Last updated in NPPESJanuary 20, 2021
Certification dateJanuary 20, 2021

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Rheumatology Associates P.A. — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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