NPPES file of Aug 9, 2026

Alexander Christian Papa, DO

Internal Medicine Physician · Buffalo, NY

Alexander Christian Papa, DO is an internal medicine physician with a practice address in Buffalo, New York, and NPI 1538747191, issued on Apr 1, 2021. Check the license (New York 336644, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538747191
Name
Alexander Christian Papa
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
336644 NY
Self-reported in NPPES; status is on the state search
Practice location
462 Grider St, Buffalo, NY 14215
Phone
(716) 898-3941
Enumerated
Apr 1, 2021
Record last updated
Oct 9, 2025
Medicare enrollment
Enrolled (PECOS I20251114002140); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2021
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 462 Grider St

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

  1. Saddam Abbadi, DOStudent in an Organized Health Care Education/Training Program1386494631
  2. Sharif Abbas, M.D.Student in an Organized Health Care Education/Training Program1376336792
  3. Sarah Abdelsayed, MDFamily Medicine Physician1093065138
  4. Elias Abou-Jaoude, MDInternal Medicine Physician1457932519
  5. Alexandra Abraham, RD CDNRegistered Dietitian1295165587
  6. Michael Abrams, PTPhysical Therapist1841355773

Verify Alexander Christian Papa 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 336644
    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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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

268 Medicare Part D claims for 63 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Alexander Papa268
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate31 claims
  2. Lisinopril20 claims
  3. Albuterol Sulfate Hfa19 claims
  4. Losartan Potassium15 claims
  5. Hydrochlorothiazide14 claims
  6. Chlorthalidone13 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.

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).

Alexander Christian Papa among 12,067 internal medicine physician records in New York

Alexander Christian Papa, DO is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2002 among the 7,221 with a school on file
  • Record last updated2025 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

293 internal medicine physician records list a practice address in Buffalo

They are 293 of the 13,287 NPPES records with a practice address in Buffalo, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Elie Akl, MDBuffalo, NY 142151184672099
  2. Ray Bergenstock, MDBuffalo, NY 142151346292299
  3. Iskandar Hai, M.D.Buffalo, NY 142151720008584
  4. Miriam Kwon, M.D.Buffalo, NY 142151962427336
  5. Nelda Lawler, M.D.Buffalo, NY 142151154303196
  6. Sanford Levy, MDBuffalo, NY 142151700844826
  7. Anthony Martinez, M.D.Buffalo, NY 142151598712754
  8. Nancy Peters, MDBuffalo, NY 142151932137122

Common questions

What is Alexander Christian Papa, DO's NPI number?

Alexander Christian Papa, DO's National Provider Identifier (NPI) is 1538747191, issued on Apr 1, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Christian Papa, DO located?

The NPPES record lists a practice address at 462 Grider St, Buffalo, NY, 14215. Phone: (716) 898-3941. Providers update this record themselves, so call before visiting.

How can I verify Alexander Christian Papa, DO's license?

NPPES lists New York license number 336644, 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 Alexander Christian Papa, DO prescribe under Medicare Part D?

In 2024, Alexander Christian Papa, DO had 268 Medicare Part D claims for 63 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.