Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

MS. Diane Olejar, NP

Individual provider Internal Medicine Physician · NPI 1740296342

MS. Diane Olejar, NP is an Internal Medicine Physician in Rochester, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

250 Crittenden Blvd Box 617
Rochester, NY 14642-8617
Phone: (585) 275-2662
Fax: (585) 276-0149
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence F300198-1 (NY)

Record details

NPI number1740296342
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESJuly 8, 2007

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