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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARYANN K PIETRZYK PNP
NPI 1447288113
Pediatrics in West Amherst, NY

Active since June 29, 2006
3950 E ROBINSON RD, WEST AMHERST, NY 14228(716) 691-3400(716) 691-3404 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Maryann K Pietrzyk Pnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARYANN K PIETRZYK PNP (NPI 1447288113) is an individual pediatrics provider in West Amherst, New York, licensed in New York (F381606-1) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1447288113
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARYANN K PIETRZYKCredential: PNP
Location Address3950 E ROBINSON RDWest Amherst, NY 14228-2041
Mailing Address8205 Main St Ste 10Williamsville, NY 14221-6054 · (716) 539-0789
Phone(716) 691-3400
Fax(716) 691-3404
Sole ProprietorNo
Enumeration DateJune 29, 2006
Last NPPES UpdateJune 30, 2026
NPPES CertifiedJune 30, 2026
✔ NPI 1447288113 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · F381606-1
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3950 E ROBINSON RD, West Amherst, NY 14228
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MICHELE MANKA-BLACK M.D.
Pediatrics (Adolescent Medicine)
3950 E ROBINSON RD, SUITE 205
AMHERST, NY 14228
Erie County (716) 691-3400
ALLERGY & ASTHMA CARE PC
Allergy & Immunology
3950 E ROBINSON RD
AMHERST, NY 14228
Erie County (716) 213-4466
CHELSEY LINDAUER PA
Physician Assistant
3950 E ROBINSON RD
W AMHERST, NY 14228
Erie County (716) 564-1111
WESTERN NEW YORK DENTAL GROUP, PC
Dentist (General Practice)
3950 E ROBINSON RD
AMHERST, NY 14228
Erie County (716) 691-8880
DR. MICHAEL STEPHEN FREITAS M.D.
Family Medicine
3950 E ROBINSON RD
WEST AMHERST, NY 14228
Erie County (716) 564-1111
MELISSA HUBER
Physician Assistant
3950 E ROBINSON RD, SUITE 106
AMHERST, NY 14228
Erie County (716) 691-3500
STEPHANIE GUIZE RPAC
Physician Assistant
3950 E ROBINSON RD, SUITE 207
WEST AMHERST, NY 14228
Erie County (716) 564-1111
MRS. DANIELLE CASILLO AGPCNP-BC
Nurse Practitioner (Adult Health)
3950 E ROBINSON RD, SUITE 207
WEST AMHERST, NY 14228
Erie County (716) 564-1111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maryann Pietrzyk's NPI number?

The NPI number for Maryann Pietrzyk is 1447288113. It was assigned to this individual provider in the NPPES registry on June 29, 2006.

Where is Maryann Pietrzyk located?

Maryann Pietrzyk practices at 3950 E Robinson Rd, West Amherst, NY 14228. The listed phone number is (716) 691-3400.

What is Maryann Pietrzyk's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Maryann Pietrzyk was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.