NPPES file of Aug 9, 2026

Catherine Gallagher Gaynor, FNP-C

Family Nurse Practitioner · Portland, ME

Catherine Gallagher Gaynor, FNP-C is a family nurse practitioner with a practice address in Portland, Maine, and NPI 1790994036, issued on May 22, 2007. Check the license (Maine AP081773, 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
1790994036
Name
Catherine Gallagher Gaynor
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP081773 ME
Self-reported in NPPES; status is on the state search
Practice location
180 Park Ave Ste 1, Portland, ME 04102
Phone
(207) 874-2141
Enumerated
May 22, 2007
Record last updated
Apr 2, 2025
Fax
(207) 874-2164
Medicare enrollment
Enrolled (PECOS I20150123000746); 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 180 Park Ave Ste 1

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

  1. Shulamith Bonham, MDInternal Medicine Physician1659568673
  2. Catherine Choquette, LMSW-CCSocial Worker1639992100
  3. Karen Clarkson, RNRegistered Nurse1689322430
  4. Lashawna Fitts, FNPFamily Nurse Practitioner1356035547
  5. Cameron Goller, FNPCNurse Practitioner1043878648
  6. Stephanie Hathaway, RDHDental Hygienist1437022753

Verify Catherine Gallagher Gaynor 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 AP081773
    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
Find 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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98% fewer Medicare Part D claims than the average family nurse practitioner in 2024

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

  1. Catherine Gaynor29
  2. Specialty average1,305

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.

Bills Medicare through one group practice

  1. Portland Community Health CenterPortland, ME

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

Catherine Gallagher Gaynor among 1,274 family nurse practitioner records in Maine

Catherine Gallagher Gaynor, FNP-C 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 2007, is newer than 19% of them.

  • NPI issued2007 · 19% of these records are older, 76% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2006 · median 2018 among the 811 with a school on file
  • Record last updated2025 · 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).

135 family nurse practitioner records list a practice address in Portland

They are 135 of the 6,022 NPPES records with a practice address in Portland, and 1,274 family nurse practitioner records in Maine.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Deirdre Bennett, NP, CNMPortland, ME 041021952318339
  2. Kelly Daly, APRN, FNP-CPortland, ME 041021013019348
  3. Chelsea Dugan, FNPPortland, ME 041021215976931
  4. Philip Gage, NPPortland, ME 041021861585036
  5. Michelle Guinta, MSN FNP-CPortland, ME 041021962473215
  6. Leslie Henry, FNPPortland, ME 041021518998707
  7. Stacey Kelley, FNP-CPortland, ME 041021033188263
  8. Dawne Miller, FNP-CPortland, ME 041021447239025

Common questions

What is Catherine Gallagher Gaynor, FNP-C's NPI number?

Catherine Gallagher Gaynor, FNP-C's National Provider Identifier (NPI) is 1790994036, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Gallagher Gaynor, FNP-C located?

The NPPES record lists a practice address at 180 Park Ave Ste 1, Portland, ME, 04102. Phone: (207) 874-2141. Providers update this record themselves, so call before visiting.

How can I verify Catherine Gallagher Gaynor, FNP-C's license?

NPPES lists Maine license number AP081773, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine Gallagher Gaynor, FNP-C prescribe under Medicare Part D?

In 2024, Catherine Gallagher Gaynor, FNP-C had 29 Medicare Part D claims; 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.