Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sandra Fefer-Sadler Medical P.C.

Primary Care Clinic/Center in Haverstraw, NY · enumerated 2011 · authorized official Sandra Fefer-Sadler, Owner.

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

National Provider Identifier

1326320698

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Sandra Fefer-Sadler Medical P.C.

Practice address 41 New Main St, Haverstraw, NY, 10927

Phone (845) 786-0000

Enumeration date Sep 13, 2011

Last updated in NPPES Sep 13, 2011

Taxonomy & classification

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities · License 207382 (NY) Primary

Authorized official

Name Sandra Fefer-Sadler

Title Owner

Phone (845) 786-0000

Other identifiers

Identifier	Type	State	Issuer
1245211309	Other	-	NPI TYPE 1
01771791	Medicaid	NY	-
2322ZA1	Other	-	EMPIRE BC & BS
227	Other	NY	HUDSON HEALTH PLAN

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

Where is Sandra Fefer-Sadler Medical P.C. located?

The practice location on file with NPPES is in Haverstraw, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-09-13. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-13.