NPPES file of Aug 9, 2026

Ann F. Lillis, ANP

Adult Health Nurse Practitioner · Williamsville, NY

Ann F. Lillis, ANP is an adult health nurse practitioner with a practice address in Williamsville, New York, and NPI 1609852607, issued on Dec 21, 2005. Check the license (New York F301173, as entered in NPPES) with the New York 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
1609852607
Name
Ann F. Lillis
Credential
ANP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
F301173 NY
Self-reported in NPPES; status is on the state search
Practice location
60 Maple RD, Williamsville, NY 14221
Phone
(716) 626-5250
Enumerated
Dec 21, 2005
Record last updated
Dec 6, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(716) 332-2218
Medicaid ID
02502481 NY
Medicare enrollment
Enrolled (PECOS I20040204000279); 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.
Download card Updates feed

8 nearest adult health nurse practitioner records → All 6,028 in New York → Look up another NPI →

Also registered at 60 Maple RD

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

  1. Christopher Bartolone, M.D.Gastroenterology Physician1548246788
  2. Peter Bloom, M.D.Gastroenterology Physician1316923253
  3. Carrin Clifford, FNP-BCFamily Nurse Practitioner1245945609
  4. David Fay, M.D.Gastroenterology Physician1942286844
  5. David Garson, M.D.Gastroenterology Physician1457337388
  6. Jerald Giller, M.D.Gastroenterology Physician1376529370

Verify Ann F. Lillis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license F301173    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 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.1 times the Medicare Part D claims of the average adult health nurse practitioner in 2024

2,723 Medicare Part D claims for 617 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Ann Lillis2,723
  2. Specialty average1,280

Most prescribed

  1. Pantoprazole Sodium533 claims
  2. Famotidine514 claims
  3. Omeprazole473 claims
  4. Colestipol Hcl90 claims
  5. Linzess88 claims
  6. Dicyclomine Hcl78 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.

Industry payments in 2024: $4,049.27

192 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ann Lillis$4,049.27
  2. Specialty average$946.40

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. Gastroenterology Associates LLPWilliamsville, NY

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

Ann F. Lillis among 6,028 adult health nurse practitioner records in New York

Ann F. Lillis, ANP is one of 6,028 adult health nurse practitioner records with a practice address in New York. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1994 · median 2016 among the 2,678 with a school on file
  • Record last updated2013 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

61 adult health nurse practitioner records list a practice address in Williamsville

They are 61 of the 3,530 NPPES records with a practice address in Williamsville, and 6,028 adult health nurse practitioner records in New York.

All 6,028 in New York → Every provider in Williamsville → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Andrea Bauer, N.P.Williamsville, NY 142211821095878
  2. Rita Colicchia, NURSE PRACTITIONERWilliamsville, NY 142211942267885
  3. Bonnie Dugan, ANPCWilliamsville, NY 142211366481657
  4. Lisa Durandetto, NPWilliamsville, NY 142211366408775
  5. Debbra Hadden, ANPWilliamsville, NY 142211356388722
  6. Patrice Hart-Barber, ANP-CWilliamsville, NY 142211205807450
  7. Karen Kosar, NURSE PRACTITIONERWilliamsville, NY 142211992712392
  8. Karmell Macoretta, NPWilliamsville, NY 142211154324028

Common questions

What is Ann F. Lillis, ANP's NPI number?

Ann F. Lillis, ANP's National Provider Identifier (NPI) is 1609852607, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ann F. Lillis, ANP located?

The NPPES record lists a practice address at 60 Maple RD, Williamsville, NY, 14221. Phone: (716) 626-5250. Providers update this record themselves, so call before visiting.

How can I verify Ann F. Lillis, ANP's license?

NPPES lists New York license number F301173, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Ann F. Lillis, ANP prescribe under Medicare Part D?

In 2024, Ann F. Lillis, ANP had 2,723 Medicare Part D claims for 617 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.