Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Olivia Simpson, MD

Individual provider Family Medicine Physician · NPI 1205366564

Olivia Simpson, MD practises Geriatric Medicine in Waterville, Maine. Qualified in 2017, 9 years ago. Practices with Mainegeneral Medical Center, a 556-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
9
Licensed in
ME
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

149 N St
Waterville, ME 04901-4974
Phone: (207) 861-5000
Fax: (207) 861-5001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 76 High St, Lewiston, ME 04240-7649 — (207) 795-2800

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence MD23438 (ME)
Family Medicine Physician Taxonomy 207Q00000X · Licence EC171068 (ME)

Record details

NPI number1205366564
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2017
Last updated in NPPESJuly 21, 2022
Certification dateAugust 10, 2021

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mainegeneral Medical Center — 556 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients63
Services billed 214 a service is one billed item, such as a visit, a test or a procedure
Average patient age85

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 Mainegeneral Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 556 clinicians in the practice; 12 are shown here.

Other providers in Waterville