Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc L Siditsky, RPA-C

Physician Assistant in Rochester, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972521847

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Registry record

Entity type Individual (Type 1)

Name Marc L Siditsky

Credential RPA-C

Sex Male

Practice address 1445 Portland Avenue, Ste 309, Rochester, NY, 14621

Phone (585) 342-2638

Fax (585) 730-7500

Enumeration date Jul 18, 2006

Last updated in NPPES Sep 18, 2020

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 000373 (NY) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 000373-01 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
01272146	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1972521847 active?

Yes, as of the latest NPPES snapshot, NPI 1972521847 is active (record last updated 2020-09-18).

How do I verify Marc Siditsky's NPI record?

Cross-check NPI 1972521847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Peter Van Brunt Internal Medicine Physician · Rochester, NY NPI 1407818883 Theckedath Mathew Cardiovascular Disease Physician · Rochester, NY NPI 1144264862 Donna Ferrero Physical Medicine & Rehabilitation Physician · Rochester, NY NPI 1306881339 Rachel Gianni Chiropractor · Rochester, NY NPI 1316244239

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-18.