NPPES file of Aug 9, 2026

Alyssa Marie Hourihan, AGNP

Adult Health Nurse Practitioner · Buffalo, NY

Alyssa Marie Hourihan, AGNP is an adult health nurse practitioner with a practice address in Buffalo, New York, and NPI 1770270787, issued on Apr 19, 2023. Check the license (New York 311252, 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
1770270787
Name
Alyssa Marie Hourihan
Credential
AGNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
311252 NY
Self-reported in NPPES; status is on the state search
Practice location
3495 Bailey Ave, Buffalo, NY 14215
Phone
(716) 834-9200
Enumerated
Apr 19, 2023
Record last updated
Apr 19, 2023
Medicare enrollment
Enrolled (PECOS I20240425001512); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 3495 Bailey Ave

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

  1. Eloise Aguirregoitia, M.D.Internal Medicine Physician1619980364
  2. Ernest AifuwaDentist1518540913
  3. Veludina Alejandro, M.D.Internal Medicine Physician1083624399
  4. Ronnetta Alexander, PHARMD.Pharmacist1497091615
  5. Matthew Altiere, PH.D.Clinical Psychologist1629361654
  6. Michael Ando, RN, CRNACertified Registered Nurse Anesthetist1023657012

Verify Alyssa Marie Hourihan 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 311252
    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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73% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

350 Medicare Part D claims for 211 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Alyssa Hourihan350
  2. Specialty average1,280

Most prescribed

  1. Dofetilide59 claims
  2. Amiodarone Hcl42 claims
  3. Eliquis42 claims
  4. Metoprolol Succinate42 claims
  5. Flecainide Acetate22 claims
  6. Xarelto19 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: $709.23

34 payments; by number, the most common kind was food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. 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. Alyssa Hourihan$709.23
  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 PCWilliamsville, NY

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

Alyssa Marie Hourihan among 6,028 adult health nurse practitioner records in New York

Alyssa Marie Hourihan, AGNP 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 2023, is newer than 88% of them.

  • NPI issued2023 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2023 · median 2016 among the 2,678 with a school on file
  • Record last updated2023 · 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).

202 adult health nurse practitioner records list a practice address in Buffalo

They are 202 of the 13,287 NPPES records with a practice address in Buffalo, and 6,028 adult health nurse practitioner records in New York.

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

  1. Scott Clark, A.N.P.Buffalo, NY 142151396719605
  2. Sheri Egeli, NPBuffalo, NY 142151124135421
  3. Evelyn Haberl, NPBuffalo, NY 142151982625299
  4. Roberta Hughes, NPBuffalo, NY 142151548294820
  5. Zena Hyman, NPBuffalo, NY 142151003985110
  6. Christine Kawalec, RN NP MSBuffalo, NY 142151356365951
  7. Pauline Marsh, NPBuffalo, NY 142151568471266
  8. Karen McGrath, NPBuffalo, NY 142151376577668

Common questions

What is Alyssa Marie Hourihan, AGNP's NPI number?

Alyssa Marie Hourihan, AGNP's National Provider Identifier (NPI) is 1770270787, issued on Apr 19, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Marie Hourihan, AGNP located?

The NPPES record lists a practice address at 3495 Bailey Ave, Buffalo, NY, 14215. Phone: (716) 834-9200. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Marie Hourihan, AGNP's license?

NPPES lists New York license number 311252, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Alyssa Marie Hourihan, AGNP prescribe under Medicare Part D?

In 2024, Alyssa Marie Hourihan, AGNP had 350 Medicare Part D claims for 211 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.

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.