NPPES file of Aug 9, 2026

Mary Gallagher, FNP

Family Nurse Practitioner · South Yarmouth, MA

Mary Gallagher, FNP is a family nurse practitioner with a practice address in South Yarmouth, Massachusetts, and NPI 1124556725, issued on May 25, 2017. Check the license (Massachusetts RN2277002, as entered in NPPES) with the Massachusetts 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124556725
Name
Mary Gallagher
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
RN2277002 MA
Self-reported in NPPES; status is on the state search
Practice location
495 Station Ave, South Yarmouth, MA 02664
Phone
(508) 957-7400
Enumerated
May 25, 2017
Record last updated
May 27, 2024
Fax
(508) 790-6656
Medicare enrollment
Enrolled (PECOS I20171026000007); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 495 Station Ave

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

  1. Jorge Alfonso, MDInternal Medicine Physician1013983402
  2. Jordan Chadwick, FNPFamily Nurse Practitioner1306660444
  3. Marissa Frongillo, N.P.Family Nurse Practitioner1588017263
  4. Ann Gryboski, MDInternal Medicine Physician1053389924
  5. Dimitrios Minadakis, PA-CMedical Physician Assistant1063852085
  6. Carol Penfield, NPCAdult Health Nurse Practitioner1306141544

Verify Mary Gallagher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2277002
    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 Massachusetts 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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85% fewer Medicare Part D claims than the average family nurse practitioner in 2024

202 Medicare Part D claims for 93 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Mary Gallagher202
  2. Specialty average1,305

Most prescribed

  1. Omeprazole13 claims
  2. Levothyroxine Sodium11 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): 79.8 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 score63.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $70.05

3 payments; by number, the most common kind was food and beverage; the largest payer was Revance Therapeutics, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Gallagher$70.05
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Medical Affiliates OF Cape Cod IncS Yarmouth, MA

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

Mary Gallagher among 4,724 family nurse practitioner records in Massachusetts

Mary Gallagher, FNP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% 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 44% of them.

  • NPI issued2017 · 44% of these records are older, 51% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2017 · median 2019 among the 2,704 with a school on file
  • Record last updated2024 · 42% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 family nurse practitioner records list a practice address in South Yarmouth

They are 6 of the 254 NPPES records with a practice address in South Yarmouth, and 4,724 family nurse practitioner records in Massachusetts.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Jordan Chadwick, FNPSouth Yarmouth, MA 026641306660444
  2. Barbara Colocino, FNP-CSouth Yarmouth, MA 026641174707855
  3. Brittany Enz, APRNSouth Yarmouth, MA 026641598198079
  4. Marissa Frongillo, N.P.South Yarmouth, MA 026641588017263
  5. Gail Marshall, NP-CSouth Yarmouth, MA 026641316018633
  6. Susan Rosenberg, NPWellfleet, MA 026671831193184
  7. Jennifer Lacasse, MSN, APRN, FNP-CWest Barnstable, MA 026681841607041
  8. Alexandra Boyle, MSN, FNP-BCProvincetown, MA 026571437494283

Common questions

What is Mary Gallagher, FNP's NPI number?

Mary Gallagher, FNP's National Provider Identifier (NPI) is 1124556725, issued on May 25, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mary Gallagher, FNP located?

The NPPES record lists a practice address at 495 Station Ave, South Yarmouth, MA, 02664. Phone: (508) 957-7400. Providers update this record themselves, so call before visiting.

How can I verify Mary Gallagher, FNP's license?

NPPES lists Massachusetts license number RN2277002, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Gallagher, FNP prescribe under Medicare Part D?

In 2024, Mary Gallagher, FNP had 202 Medicare Part D claims for 93 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Mary Gallagher, FNP's MIPS final score?

The 2023 MIPS final score is 79.8 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.