Catherine Nielsen, MD
Family Medicine Physician · Oakland, ME
Catherine Nielsen, MD is a family medicine physician with a practice address in Oakland, Maine, and NPI 1588654743, issued on Oct 27, 2005. Check the license (Maine 014189, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Catherine Nielsen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 014189 ME
Self-reported in NPPES; status is on the state search - Practice location
- 9 Pleasant St, Oakland, ME 04963
- Phone
- (207) 465-2181
- Enumerated
- Oct 27, 2005
- Entity
- Type 1 · individual
Also registered at 9 Pleasant St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yusuf AbdiPhysician Assistant1700253671
- Hope Blais, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1407584626
- Rocio Veronica Carbona, PA-CMedical Physician Assistant1518215375
- Nancy Filliter, MDFamily Medicine Physician1851381008
- Jazmine LevesqueNurse Practitioner1669117453
Verify Catherine Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 014189Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
126 Medicare Part D claims for 25 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D.
Most prescribed
- Buprenorphine-Naloxone52 claims
- Buprenorphine Hcl35 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 Medicare quality score for 2023: 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Mainegeneral Medical CenterGardiner, ME
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
3 family medicine physician records list a Oakland practice address
They are 3 of the 108 NPPES records with a Oakland practice address, and 1,168 family medicine physician records in Maine.
All 3 in Oakland → All 1,168 in Maine → Every provider in Oakland →
Other family medicine physician records in Maine
- Jeffrey Aalberg, MDFalmouth, ME1669400222
- Elizabeth Abbas, DOFarmington, ME1932588100
- Robert Abrams, M.D.Lubec, ME1720067010
- Andrea Abrell, DOAugusta, ME1558525188
- Katie Adams, MDLincoln, ME1154764975
- Sophia AdamsPortland, ME1073961892
- Thomas Adams, MDSouthwest Harbor, ME1851331565
- Rebecca Adamson, MDLewiston, ME1912313982
- Constance Adler, M.D., F.A.A.F.P.Farmington, ME1487689675
- Devesh Agarwal, M.D.Lincoln, ME1710116876
Common questions
What is Catherine Nielsen, MD's NPI number?
Catherine Nielsen, MD's National Provider Identifier (NPI) is 1588654743, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Nielsen, MD located?
The NPPES record lists a practice address at 9 Pleasant St, Oakland, ME, 04963. Phone: (207) 465-2181. Providers update this record themselves, so call before visiting.
How can I verify Catherine Nielsen, MD's license?
NPPES lists Maine license number 014189, 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 Catherine Nielsen, MD prescribe under Medicare Part D?
In 2024, Catherine Nielsen, MD had 126 Medicare Part D claims for 25 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
What is Catherine Nielsen, MD's Medicare quality 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.