NPPES file of Aug 9, 2026

Nancy Patricia Keegan

Family Medicine Physician · East Hampton, NY

Nancy Patricia Keegan is a family medicine physician with a practice address in East Hampton, New York, and NPI 1144548942, issued on May 4, 2010. Check the license (New York 336264, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1144548942
Name
Nancy Patricia Keegan
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
336264 NY
Self-reported in NPPES; status is on the state search
Practice location
200 Pantigo PL, East Hampton, NY 11937
Phone
(631) 329-8430
Enumerated
May 4, 2010
Record last updated
May 4, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(631) 329-8291
Medicare enrollment
Enrolled (PECOS I20150318002290); 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 200 Pantigo PL

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

  1. Jill Chopra, N.P.Family Nurse Practitioner1417109984
  2. Louise Collins, M.D.Gynecology Physician1891872107
  3. George Dempsey, M.D.Family Medicine Physician1407896152
  4. Linda Faszczewski, NPAdult Health Nurse Practitioner1740453281
  5. Bryony Freij, LCSWClinical Social Worker1992163349
  6. Ralph Gibson, M.D.Internal Medicine Physician1972603066

Verify Nancy Patricia Keegan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 336264
    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
Open the New York 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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59% fewer Medicare Part D claims than the average family medicine physician in 2024

1,437 Medicare Part D claims for 259 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Nancy Keegan1,437
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate87 claims
  2. Lisinopril65 claims
  3. Atorvastatin Calcium63 claims
  4. Rosuvastatin Calcium57 claims
  5. Metoprolol Succinate40 claims
  6. Losartan Potassium38 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 MIPS final score for 2023 (Medicare payment program): 98.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score82.9
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $22.26

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nancy Keegan$22.26
  2. Specialty average$902.55

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. Meeting House Lane Medical Practice PCSouthampton, NY

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

Nancy Patricia Keegan among 6,417 family medicine physician records in New York

Nancy Patricia Keegan is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 57% of them.

  • NPI issued2010 · 57% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2009 · median 2007 among the 4,188 with a school on file
  • Record last updated2010 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 family medicine physician records list a practice address in East Hampton

They are 5 of the 189 NPPES records with a practice address in East Hampton, and 6,417 family medicine physician records in New York.

The 8 family medicine physician records with the nearest ZIP codes

  1. Sandra Camargo, MDEast Hampton, NY 119371922396274
  2. George Dempsey, M.D.East Hampton, NY 119371407896152
  3. Biju Lukose, D.O.East Hampton, NY 119371023378049
  4. Jerome Schneir, D.O., M.D.East Hampton, NY 119371407868821
  5. Diana Aldea, M.D.East Moriches, NY 119401669589909
  6. Joann Capuano, NURSE PRACTITIONEREast Moriches, NY 119401720165269
  7. John Celentano, MDEast Moriches, NY 119401558445478
  8. Josephine Champlin, DOCenter Moriches, NY 119341851888770

Common questions

What is Nancy Patricia Keegan's NPI number?

Nancy Patricia Keegan's National Provider Identifier (NPI) is 1144548942, issued on May 4, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Patricia Keegan located?

The NPPES record lists a practice address at 200 Pantigo PL, East Hampton, NY, 11937. Phone: (631) 329-8430. Providers update this record themselves, so call before visiting.

How can I verify Nancy Patricia Keegan's license?

NPPES lists New York license number 336264, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nancy Patricia Keegan prescribe under Medicare Part D?

In 2024, Nancy Patricia Keegan had 1,437 Medicare Part D claims for 259 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Nancy Patricia Keegan's MIPS final score?

The 2023 MIPS final score is 98.5 of 100. 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.