Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sarah Emily Hartzog I, MD

Obstetrics & Gynecology Physician in New York, NY · enumerated 2006.

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

National Provider Identifier

1770546947

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Registry record

Entity type Individual (Type 1)

Name Dr. Sarah Emily Hartzog I

Credential MD

Sex Female

Practice address 245 5th Ave, The Continuum Center for Health and Healing, New York, NY, 10016

Phone (646) 935-2244

Fax (646) 935-2273

Enumeration date Apr 10, 2006

Last updated in NPPES Oct 21, 2008

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 169506-1 (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
33507	Other	CO	STATE LICENSE NUMBER
TL30522	Other	SC	STATE LICENSE
48439401200001	Other	UT	BCBS PROVIDER NUMBER
01335074	Medicaid	CO	-
4843940-8905	Other	UT	STATE LICENSE NUMBER
38745	Other	CO	BCBS PROVIDER NUMBER

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sarah Hartzog?

Sarah Hartzog is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-21.