NPPES file of Aug 9, 2026

Ian Ainsworth, FNPC

Family Nurse Practitioner · Belfast, ME

Ian Ainsworth, FNPC is a family nurse practitioner with a practice address in Belfast, Maine, and NPI 1639892763, issued on Sep 23, 2022. Check the license (Maine CNP221545, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1639892763
Name
Ian Ainsworth
Credential
FNPC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
CNP221545 ME
Self-reported in NPPES; status is on the state search
Practice location
53 Schoodic Dr, Belfast, ME 04915
Phone
(207) 338-6900
Enumerated
Sep 23, 2022
Record last updated
Nov 4, 2022
Fax
(207) 338-4974
Medicare enrollment
Enrolled (PECOS I20221216002056); may accept 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 53 Schoodic Dr

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

  1. Denise Bouchard, DNPCNurse Practitioner1467493023
  2. Carol Browning, MDPsychiatry Physician1730271842
  3. Cheryl Deane, PA-CPhysician Assistant1952741126
  4. Paul Dube, M.D.Pediatrics Physician1699738310
  5. Jennifer Eaton, D.O.Family Medicine Physician1851771166
  6. Monica Finley, FNPCFamily Nurse Practitioner1104176478

Verify Ian Ainsworth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this profession
    Search for license CNP221545
    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
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85% fewer Medicare Part D claims than the average family nurse practitioner in 2024

195 Medicare Part D claims for 125 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Ian Ainsworth195
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass31 claims
  2. Prednisone31 claims
  3. Albuterol Sulfate Hfa19 claims
  4. Azithromycin17 claims
  5. Cephalexin13 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.

Ian Ainsworth among 1,274 family nurse practitioner records in Maine

Ian Ainsworth, FNPC is one of 1,274 family nurse practitioner 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 2022, is newer than 78% of them.

  • NPI issued2022 · 78% of these records are older, 16% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2022 · median 2018 among the 811 with a school on file
  • Record last updated2022 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family nurse practitioner records list a practice address in Belfast

They are 17 of the 393 NPPES records with a practice address in Belfast, and 1,274 family nurse practitioner records in Maine.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Deborah Czuchra, RN-NPBelfast, ME 049151548377153
  2. Monica Finley, FNPCBelfast, ME 049151104176478
  3. Roberta Goff, FNP-CBelfast, ME 049151568628626
  4. Chelsea Howard, FNPBelfast, ME 049151649646035
  5. Marilyn Larue, FNPCBelfast, ME 049151497208847
  6. Kimberly MetcalfBelfast, ME 049151326597154
  7. Joanne Moesswilde, FNPBelfast, ME 049151699852350
  8. Ellen Pileski, FNP-CBelfast, ME 049151093843252

Common questions

What is Ian Ainsworth, FNPC's NPI number?

Ian Ainsworth, FNPC's National Provider Identifier (NPI) is 1639892763, issued on Sep 23, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Ian Ainsworth, FNPC located?

The NPPES record lists a practice address at 53 Schoodic Dr, Belfast, ME, 04915. Phone: (207) 338-6900. Providers update this record themselves, so call before visiting.

How can I verify Ian Ainsworth, FNPC's license?

NPPES lists Maine license number CNP221545, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Ian Ainsworth, FNPC prescribe under Medicare Part D?

In 2024, Ian Ainsworth, FNPC had 195 Medicare Part D claims for 125 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.