NPPES file of Aug 9, 2026

Kathleen Ammon, NP

Obstetrics & Gynecology Nurse Practitioner · Melrose, MA

Kathleen Ammon, NP is an obstetrics & gynecology nurse practitioner with a practice address in Melrose, Massachusetts, and NPI 1104282136, issued on Jan 6, 2016. Check the license (Massachusetts RN2278892, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104282136
Name
Kathleen Ammon
Credential
NP
Primary taxonomy
Obstetrics & Gynecology Nurse Practitioner 363LX0001X
License number
RN2278892 MA
Self-reported in NPPES; status is on the state search
Practice location
50 Rowe St Ste 400, Melrose, MA 02176
Phone
(781) 665-6606
Enumerated
Jan 6, 2016
Record last updated
Feb 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(781) 665-1277
Medicare enrollment
Enrolled (PECOS I20160408001431); 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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Verify Kathleen Ammon 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 RN2278892
    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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67% fewer Medicare Part D claims than the average obstetrics & gynecology nurse practitioner in 2024

66 Medicare Part D claims for 34 beneficiaries, against an average of 198 among the 1,094 providers of this specialty who prescribed in Part D.

  1. Kathleen Ammon66
  2. Specialty average198

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.

Industry payments in 2024: $146.12

6 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 1,033 providers of this specialty with any payment received $439.39 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Ammon$146.12
  2. Specialty average$439.39

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. Hallmark Health Medical Associates IncMalden, MA

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

Kathleen Ammon among 89 obstetrics & gynecology nurse practitioner records in Massachusetts

Kathleen Ammon, NP is one of 89 obstetrics & gynecology nurse practitioner records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2015 · median 2008 among the 37 with a school on file
  • Record last updated2021 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LX0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Nurse Practitioner providers in Massachusetts

There are 89 obstetrics & gynecology nurse practitioner records in Massachusetts.

The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes

  1. Toni - Ann Rebelo, MSN, ANPStoneham, MA 021801053672667
  2. Kathleen Fuller, NPQuincy, MA 021691689638371
  3. Liana Kantola, NPQuincy, MA 021691316572159
  4. Jaime Kullak, RN,WHNPQuincy, MA 021691508000803
  5. Kayla Sullivan, FNP-BCQuincy, MA 021691376393181
  6. Cynthia Maclachlan, MSN, WHNPWeymouth, MA 021891265432728
  7. Diane Rutan, NPWeymouth, MA 021891811021678
  8. Lynda Clancy, RNPWeymouth, MA 021901245261759

Common questions

What is Kathleen Ammon, NP's NPI number?

Kathleen Ammon, NP's National Provider Identifier (NPI) is 1104282136, issued on Jan 6, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Ammon, NP located?

The NPPES record lists a practice address at 50 Rowe St Ste 400, Melrose, MA, 02176. Phone: (781) 665-6606. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Ammon, NP's license?

NPPES lists Massachusetts license number RN2278892, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Kathleen Ammon, NP prescribe under Medicare Part D?

In 2024, Kathleen Ammon, NP had 66 Medicare Part D claims for 34 beneficiaries; the average among obstetrics & gynecology nurse practitioner prescribers was 198. 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.