Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lynn M Sievert, NP

Hematology & Oncology Physician in Clifton Springs, NY · enumerated 2006 · practices at Finger Lakes Hematology & Oncology Pllc.

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

National Provider Identifier

1265482400

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Registry record

Entity type Individual (Type 1)

Name Lynn M Sievert

Credential NP

Sex Female

Practice address 6 Ambulance Drive, Clifton Springs, NY, 14432

Phone (315) 462-1472

Fax (315) 462-2639

Enumeration date May 10, 2006

Last updated in NPPES Jul 3, 2023

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 370009 (NY) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License F3700091 (NY) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
02329826	Medicaid	NY	-
P019370009	Other	NY	BLUE CHOICE BCBS
NP0538	Other	NY	PREFERRED CARE

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.

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Frequently asked questions

How do I verify Lynn Sievert's NPI record?

Cross-check NPI 1265482400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265482400 active?

Yes, as of the latest NPPES snapshot, NPI 1265482400 is active (record last updated 2023-07-03).

Other providers at this practice address

Browse all →

Stephen Ignaczak Hematology & Oncology Physician · Clifton Springs, NY NPI 1962452136 Finger Lakes Hematology & Oncology Pllc Hematology & Oncology Physician · Clifton Springs, NY NPI 1659321859 Virginia Hurley Hematology & Oncology Physician · Clifton Springs, NY NPI 1518918663

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-03.