Diane Olejar, N.P.
Internal Medicine Physician · Rochester, NY
Diane Olejar, N.P. is an internal medicine physician with a practice address in Rochester, New York, and NPI 1740296342, issued on Aug 1, 2006. Check the license (New York F300198-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diane Olejar
- Credential
- N.P.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- F300198-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 250 Crittenden Blvd, Rochester, NY 14642
- Phone
- (585) 275-2662
- Enumerated
- Aug 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (585) 276-0149
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 250 Crittenden Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Diane Olejar 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 F300198-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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: $99.74
1 payment: food and beverage; the largest payer was Otsuka Pharmaceutical Development & Commercialization, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Diane Olejar among 12,067 internal medicine physician records in New York
Diane Olejar, N.P. 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 fileNo · 60% of these records are
- Record last updated2007 · 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).
504 internal medicine physician records list a practice address in Rochester
They are 504 of the 20,520 NPPES records with a practice address in Rochester, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Rochester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Donald Bordley, MDRochester, NY 146421740205095
- Nancy Clark, M.D.Rochester, NY 146421538198866
- Elizabeth Edwardsen, M.D.Rochester, NY 146421306862644
- Aniko Fellegi, M.D.Rochester, NY 146421457343667
- John Grable, MDRochester, NY 146421427090026
- Catherine Gracey, MDRochester, NY 146421336185917
Common questions
What is Diane Olejar, N.P.'s NPI number?
Diane Olejar, N.P.'s National Provider Identifier (NPI) is 1740296342, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane Olejar, N.P. located?
The NPPES record lists a practice address at 250 Crittenden Blvd, Rochester, NY, 14642. Phone: (585) 275-2662. Providers update this record themselves, so call before visiting.
How can I verify Diane Olejar, N.P.'s license?
NPPES lists New York license number F300198-1, 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 Diane Olejar, N.P. prescribe under Medicare Part D?
In 2024, Diane Olejar, N.P. had 11 Medicare Part D claims; 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.