NPPES file of Aug 9, 2026

Olivia Simpson, MD

Geriatric Medicine (Family Medicine) Physician · Waterville, ME

Olivia Simpson, MD is a geriatric medicine (family medicine) physician with a practice address in Waterville, Maine, and NPI 1205366564, issued on Jun 19, 2017. Check the license (Maine MD23438, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205366564
Name
Olivia Simpson
Credential
MD
Primary taxonomy
Geriatric Medicine (Family Medicine) Physician 207QG0300X
License numbers
MD23438 ME
EC171068 ME
Self-reported in NPPES; status is on the state search
Practice location
149 North St, Waterville, ME 04901
Phone
(207) 861-5000
Enumerated
Jun 19, 2017
Record last updated
Jul 21, 2022
Fax
(207) 861-5001
Medicare enrollment
Enrolled (PECOS I20200911001134); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 149 North St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmed Aldilaimi, MDHospitalist Physician1497721849
  2. Alycia Allen, MSN, NP-CFamily Nurse Practitioner1083046718
  3. Michael Antoniello, M.D.Emergency Medicine Physician1568470953
  4. Amethyst Arceo, DOFamily Medicine Physician1801913553
  5. Timothy Axelson, CRNACertified Registered Nurse Anesthetist1649219353
  6. Faith Ayepola, MDStudent in an Organized Health Care Education/Training Program1922932417

Verify Olivia Simpson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD23438
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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52% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024

2,528 Medicare Part D claims for 246 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 79 claims were for opioids.

  1. Olivia Simpson2,528
  2. Specialty average5,222

Most prescribed

  1. Sertraline Hcl214 claims
  2. Levothyroxine Sodium126 claims
  3. Furosemide112 claims
  4. Atorvastatin Calcium111 claims
  5. Omeprazole98 claims
  6. Metoprolol Succinate79 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score73.7
  2. Costout of 100 · 30%60.5
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Mainegeneral Medical CenterWaterville, ME
  2. Ventura Medical Services LLCTopsham, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Olivia Simpson among 30 geriatric medicine (family medicine) physician records in Maine

Olivia Simpson, MD is one of 30 geriatric medicine (family medicine) physician records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 87% of them.

  • NPI issued2017 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2017 · median 2008 among the 19 with a school on file
  • Record last updated2022 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Family Medicine) Physician providers in Maine

There are 30 geriatric medicine (family medicine) physician records in Maine.

The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes

  1. Philip Groce, MDUnion, ME 048621114908415
  2. Courtney Voisine, NPHartland, ME 049431669282927
  3. Nadine Bos, DOBangor, ME 044011275092280
  4. Susan Ostertag, MDBangor, ME 044011902849979
  5. Karen Gershman, MDAugusta, ME 043301699741918
  6. Lauren Hall, DOAugusta, ME 043301225444995
  7. Nathan Harmon, DOAugusta, ME 043301205943388
  8. John Hussey, MDAugusta, ME 043301144242033

Common questions

What is Olivia Simpson, MD's NPI number?

Olivia Simpson, MD's National Provider Identifier (NPI) is 1205366564, issued on Jun 19, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Olivia Simpson, MD located?

The NPPES record lists a practice address at 149 North St, Waterville, ME, 04901. Phone: (207) 861-5000. Providers update this record themselves, so call before visiting.

How can I verify Olivia Simpson, MD's license?

NPPES lists Maine license number MD23438, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Olivia Simpson, MD prescribe under Medicare Part D?

In 2024, Olivia Simpson, MD had 2,528 Medicare Part D claims for 246 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. Part D covers Medicare prescriptions only.

What is Olivia Simpson, MD's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.