Keith A. Gembusia, D.O.
Family Medicine Physician · Olean, NY
Keith A. Gembusia, D.O. is a family medicine physician with a practice address in Olean, New York, and NPI 1205020245, issued on Sep 4, 2007. Check the license (New York 257608, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Keith A. Gembusia
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 257608 NY
Self-reported in NPPES; status is on the state search - Practice location
- 401 N. 8TH St., Olean, NY 14760
- Phone
- (716) 379-8113
- Enumerated
- Sep 4, 2007
- Record last updated
- Jun 28, 2023
- Fax
- (716) 379-8115
- Medicaid ID
- 0018787180001 NY
- Medicare enrollment
- Enrolled (PECOS I20100922000751); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2007
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Verify Keith A. Gembusia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 257608Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
11,045 Medicare Part D claims for 619 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 393 claims were for opioids.
Most prescribed
- Lisinopril684 claims
- Levothyroxine Sodium463 claims
- Atorvastatin Calcium385 claims
- Amlodipine Besylate342 claims
- Metformin Hcl333 claims
- Omeprazole311 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Memorial Hospital OF William F And Gertrude F Jones IncBolivar, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keith A. Gembusia among 6,417 family medicine physician records in New York
Keith A. Gembusia, D.O. is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 51% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2007 · median 2007 among the 4,188 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 family medicine physician records list a practice address in Olean
They are 20 of the 675 NPPES records with a practice address in Olean, and 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Olean → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Haas, M.D.Olean, NY 147601962819813
- Johanna Handley, M.D.Olean, NY 147601407855679
- Roop Kiran Kaur, M.B.B.SOlean, NY 147601386021566
- Allen Knowles, MDOlean, NY 147601558353342
- Salwat Malik, M.D.Olean, NY 147601548421399
- William Mills, MDOlean, NY 147601427045665
- Ronan O'Leary, MBCHBOlean, NY 147601548536758
- Brooke Pancio, MDOlean, NY 147601548607955
Common questions
What is Keith A. Gembusia, D.O.'s NPI number?
Keith A. Gembusia, D.O.'s National Provider Identifier (NPI) is 1205020245, issued on Sep 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Keith A. Gembusia, D.O. located?
The NPPES record lists a practice address at 401 N. 8TH St., Olean, NY, 14760. Phone: (716) 379-8113. Providers update this record themselves, so call before visiting.
How can I verify Keith A. Gembusia, D.O.'s license?
NPPES lists New York license number 257608, 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 Keith A. Gembusia, D.O. prescribe under Medicare Part D?
In 2024, Keith A. Gembusia, D.O. had 11,045 Medicare Part D claims for 619 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Keith A. Gembusia, D.O.'s MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.