Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Bergstein, CNM, WHNP

Advanced Practice Midwife in Harrison, NY · enumerated 2005.

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

National Provider Identifier

1184614794

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Registry record

Entity type Individual (Type 1)

Name Karen Bergstein

Credential CNM, WHNP

Sex Female

Practice address 450 Mamaroneck Ave, Harrison, NY, 10528

Phone (914) 421-1500

Enumeration date Oct 25, 2005

Last updated in NPPES Feb 28, 2023

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F420714-01 (NY) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License F000553 (NY) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
M7M141	Other	NY	EMPIRE BCBS #
000000053323	Other	NY	GHI HMO #
1000016825	Other	NY	AFFINITY HEALTH PLAN #
167019	Other	NY	CONNECTICARE #
02098075	Medicaid	NY	-
208587	Other	NY	WELLCARE #
5066679	Other	NY	AETNA PPO #
0D3127	Other	NY	HEALTHNET #
2256606	Other	NY	AETNA HMO #
400222	Other	NY	MVP #
P2105935	Other	NY	OXFORD #
1899885	Other	NY	GHI PPO #
F000553	Other	NY	HIP #
BK0553	Other	NY	ATLANTIS 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

What specialty is Karen Bergstein?

Karen Bergstein is registered in NPPES with the primary taxonomy of Advanced Practice Midwife. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-28.