NPPES file of Aug 9, 2026

Marcey Ann Larson, CRNA

Certified Registered Nurse Anesthetist · Williamsville, NY

Marcey Ann Larson, CRNA is a certified registered nurse anesthetist with a practice address in Williamsville, New York, and NPI 1669764320, issued on May 12, 2011. Check the license (New York 642297, 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
1669764320
Name
Marcey Ann Larson
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
642297 NY
Self-reported in NPPES; status is on the state search
Practice location
30 S Cayuga RD, Williamsville, NY 14221
Phone
(716) 632-1088
Enumerated
May 12, 2011
Record last updated
May 15, 2025
Fax
(716) 632-7842
Medicare enrollment
Enrolled (PECOS I20130514000723); 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 30 S Cayuga RD

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

  1. Shellya Ahmad, CRNACertified Registered Nurse Anesthetist1871935478
  2. Cindy Anderson, CRNACertified Registered Nurse Anesthetist1497814198
  3. Madeleine Auguste, MDAnesthesiology Physician1730433905
  4. Benedictus Bahk, M.D.Anesthesiology Physician1518986603
  5. Gilbert Bangha Tohmukuah, CRNACertified Registered Nurse Anesthetist1679036107
  6. Soheila Bayani, CRNACertified Registered Nurse Anesthetist1972723526

Verify Marcey Ann Larson 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 642297
    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.

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Industry payments in 2024: $14.69

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcey Larson$14.69
  2. Specialty average$135.08

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. Anesthesia Associates OF New Mexico P CSanta Fe, NM

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

Marcey Ann Larson among 2,596 certified registered nurse anesthetist records in New York

Marcey Ann Larson, CRNA is one of 2,596 certified registered nurse anesthetist records with a practice address in New York. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 42% of them.

  • NPI issued2011 · 42% of these records are older, 55% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2011 · median 2015 among the 1,976 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

62 certified registered nurse anesthetist records list a practice address in Williamsville

They are 62 of the 3,530 NPPES records with a practice address in Williamsville, and 2,596 certified registered nurse anesthetist records in New York.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Cindy Anderson, CRNAWilliamsville, NY 142211497814198
  2. Nancy Becht, CRNAWilliamsville, NY 142211134214869
  3. Paul Bielec, CRNAWilliamsville, NY 142211912066655
  4. Carole Brock, CRNAWilliamsville, NY 142211952419251
  5. Roni Carlson, CRNAWilliamsville, NY 142211174611503
  6. Julianne Haas, CRNAWilliamsville, NY 142211497743132
  7. Donna Karczewski, CRNA, ACNPWilliamsville, NY 142211831284678
  8. Scott Klenk, CRNAWilliamsville, NY 142211295821924

Common questions

What is Marcey Ann Larson, CRNA's NPI number?

Marcey Ann Larson, CRNA's National Provider Identifier (NPI) is 1669764320, issued on May 12, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Marcey Ann Larson, CRNA located?

The NPPES record lists a practice address at 30 S Cayuga RD, Williamsville, NY, 14221. Phone: (716) 632-1088. Providers update this record themselves, so call before visiting.

How can I verify Marcey Ann Larson, CRNA's license?

NPPES lists New York license number 642297, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity 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.