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

Sarah L Ketchum, MD

Individual provider Hematology & Oncology Physician · NPI 1689781536

Sarah L Ketchum, MD practises Hematology/Oncology in South Portland, Maine. Qualified in 2001, 25 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Maine and New Hampshire.

Years since qualifying
25
Licensed in
ME, NH
In the registry since
2006
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

265 Western Ave
South Portland, ME 04106-2458
Phone: (207) 661-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3073 White Mountain Hwy, North Conway, NH 03860-7101 — (603) 356-4904

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 25618 (NH)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 017416 (ME)

Record details

NPI number1689781536
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESApril 25, 2024
Certification dateApril 25, 2024

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients177
Services billed 639 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Other providers in South Portland