NPPES file of Aug 9, 2026

Thomas Chamberlain

Adult Health Nurse Practitioner · Williamsville, NY

Thomas Chamberlain is an adult health nurse practitioner with a practice address in Williamsville, New York, and NPI 1770037996, issued on Aug 4, 2016. Check the license (New York 307797, 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
1770037996
Name
Thomas Chamberlain
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
307797 NY
Self-reported in NPPES; status is on the state search
Practice location
1540 Maple RD, Williamsville, NY 14221
Phone
(716) 568-3514
Enumerated
Aug 4, 2016
Record last updated
Aug 4, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161205001110); 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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8 nearest adult health nurse practitioner records → All 6,028 in New York → Look up another NPI →

Also registered at 1540 Maple RD

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

  1. Ekhlas AbdulraheemObstetrics & Gynecology Physician1518594795
  2. Aaron Adams, MDEmergency Medicine Physician1962068080
  3. Raheel Ahmad, DOHospitalist Physician1316180896
  4. Mohammed Ahmed, MDInternal Medicine Physician1639818321
  5. Andrew Bair, PAPhysician Assistant1720589872
  6. Nancy Barclay, NPNeonatal Nurse Practitioner1154398550

Verify Thomas Chamberlain 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 307797    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

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75% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

326 Medicare Part D claims for 195 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Thomas Chamberlain326
  2. Specialty average1,280

Most prescribed

  1. Cefdinir28 claims
  2. Prednisone26 claims
  3. Amoxicillin-Clavulanate Potass14 claims
  4. Eliquis14 claims
  5. Metoprolol Succinate13 claims
  6. Furosemide12 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: $62.63

3 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. Thomas Chamberlain$62.63
  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. General Physician PCBuffalo, NY

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

Thomas Chamberlain among 6,028 adult health nurse practitioner records in New York

Thomas Chamberlain 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 2016, is newer than 57% of them.

  • NPI issued2016 · 57% of these records are older, 39% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2016 · median 2016 among the 2,678 with a school on file
  • Record last updated2016 · 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. Ann Lillis, ANPWilliamsville, NY 142211609852607

Common questions

What is Thomas Chamberlain's NPI number?

Thomas Chamberlain's National Provider Identifier (NPI) is 1770037996, issued on Aug 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Chamberlain located?

The NPPES record lists a practice address at 1540 Maple RD, Williamsville, NY, 14221. Phone: (716) 568-3514. Providers update this record themselves, so call before visiting.

How can I verify Thomas Chamberlain's license?

NPPES lists New York license number 307797, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas Chamberlain prescribe under Medicare Part D?

In 2024, Thomas Chamberlain had 326 Medicare Part D claims for 195 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.