Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Sandra Myriam Fefer-Sadler, M.D.

Pediatric Adolescent Medicine Physician in Haverstraw, NY · enumerated 2005.

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

National Provider Identifier

1245211309

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Sandra Myriam Fefer-Sadler

Credential M.D.

Sex Female

Practice address Haverstraw, NY, 10927

Phone (845) 786-0000

Fax (866) 520-3592

Enumeration date Nov 7, 2005

Last updated in NPPES May 30, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License 207382-1 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
227	Other	NY	HUDSON HEALTH PLAN
132632069	Other	NY	BUSINESS NPI
232ZA1	Other	NY	EMPIRE BC AND BS
01771791	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

Where does Sandra Fefer-Sadler practice?

The practice location on file with NPPES is in Haverstraw, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Sandra Fefer-Sadler?

The National Provider Identifier (NPI) for Sandra Fefer-Sadler is 1245211309, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-30.