John L. Genier, M.D.
Internal Medicine Physician · Fairport, NY
John L. Genier, M.D. is an internal medicine physician with a practice address in Fairport, New York, and NPI 1811931900, issued on Jun 16, 2006. Check the license (New York 182532, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John L. Genier
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 182532 NY
Self-reported in NPPES; status is on the state search - Practice location
- 420 Cross Keys Office Park, Fairport, NY 14450
- Phone
- (585) 223-4620
- Enumerated
- Jun 16, 2006
- Record last updated
- Aug 28, 2022
- Fax
- (585) 223-7447
- Medicaid ID
- 01398865 NY
- Medicare enrollment
- Enrolled (PECOS I20100215000273); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 420 Cross Keys Office Park
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Howard, M.D.Internal Medicine Physician1588610943
- David Kopp, MDInternal Medicine Physician1134198849
Verify John L. Genier 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 182532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,145 Medicare Part D claims for 874 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 268 claims were for opioids.
Most prescribed
- Atorvastatin Calcium881 claims
- Losartan Potassium578 claims
- Amlodipine Besylate560 claims
- Omeprazole434 claims
- Lisinopril427 claims
- Levothyroxine Sodium409 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 2 group practices
- Cross Keys Internal Medicine,llpFairport, NY
- Strong Medical GroupRochester, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John L. Genier among 12,067 internal medicine physician records in New York
John L. Genier, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1989 · median 2002 among the 7,221 with a school on file
- Record last updated2022 · 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).
15 internal medicine physician records list a practice address in Fairport
They are 15 of the 1,034 NPPES records with a practice address in Fairport, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Fairport → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Bressler, M.D.Fairport, NY 144501447331855
- Mirabai Chockalingam, M.D.Fairport, NY 144501245263318
- Karen Chruscicki, MDFairport, NY 144501871523407
- Joyce Chu, M.D.Fairport, NY 144501851597942
- Ronald Guzman, MDFairport, NY 144501164563110
- Steven Howard, M.D.Fairport, NY 144501588610943
- Dewey Jackson, MDFairport, NY 144501659330108
- Wallace Johnson, MDFairport, NY 144501902833619
Common questions
What is John L. Genier, M.D.'s NPI number?
John L. Genier, M.D.'s National Provider Identifier (NPI) is 1811931900, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John L. Genier, M.D. located?
The NPPES record lists a practice address at 420 Cross Keys Office Park, Fairport, NY, 14450. Phone: (585) 223-4620. Providers update this record themselves, so call before visiting.
How can I verify John L. Genier, M.D.'s license?
NPPES lists New York license number 182532, 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 John L. Genier, M.D. prescribe under Medicare Part D?
In 2024, John L. Genier, M.D. had 11,145 Medicare Part D claims for 874 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.