Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael Bienenfeld MD PA

Q: What type of organization is Michael Bienenfeld MD PA?

Michael Bienenfeld MD PA is registered in NPPES as a Geriatric Medicine (Internal Medicine) Physician (its primary provider taxonomy).

Geriatric Medicine (Internal Medicine) Physician in Cary, NC · enumerated 2007 · authorized official Michael Bienenfeld, Owner.

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

National Provider Identifier

1891820148

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Registry record

Entity type Organization (Type 2)

Legal business name Michael Bienenfeld MD PA

Practice address 1505 Sw Cary Pkwy, Suite 308, Cary, NC, 27511

Phone (919) 303-1072

Fax (919) 387-7552

Enumeration date Feb 23, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 9600863 (NC) Primary

Authorized official

Name Michael Bienenfeld

Title Owner

Phone (919) 303-1072

Other identifiers

Identifier	Type	State	Issuer
1006H	Other	NC	BCBS OF NC
0402628	Other	NC	UNITED HEALTHCARE
891006H	Medicaid	NC	-
AETNA	Other	NC	7812348
16833	Other	NC	PARTNERS 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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Michael Bienenfeld MD PA?

Michael Bienenfeld MD PA is registered in NPPES as a Geriatric Medicine (Internal Medicine) Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.