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

Mr. Mark Grzesiak, RPAC

Individual provider Physician Assistant · NPI 1376717272

Mr. Mark Grzesiak, RPAC is a Physician Assistant in Mineola, New York. Qualified in 2005, 21 years ago. Practices with North Shore Health System Medical Faculty Group Practice Inc, a 158-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
21
Licensed in
NY
In the registry since
2008
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Practice location Address checks out

259 1st St
Mineola, NY 11501-3957
Phone: (516) 663-8312
Fax: (516) 663-2184
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 010785 (NY)

Record details

NPI number1376717272
Entity typeIndividual (Type 1)
GenderMale
Credentials RPAC
Sole proprietorYes
NPI enumeratedApril 22, 2008
Last updated in NPPESApril 22, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice North Shore Health System Medical Faculty Group Practice Inc — 158 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Mineola