Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Benjamin P Graef, D.O.

Sleep Medicine (Internal Medicine) Physician in Concord, NC · enumerated 2007.

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

National Provider Identifier

1306061551

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Registry record

Entity type Individual (Type 1)

Name Benjamin P Graef

Credential D.O.

Sex Male

Practice address 212 Le Phillip Ct Ne, Suite 105, Concord, NC, 28025

Phone (704) 248-0000

Fax (877) 335-8171

Enumeration date Apr 14, 2007

Last updated in NPPES Feb 25, 2015

Taxonomy & licenses

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 34008947 (OH) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 185517 (NC) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
NC2099	Medicaid	SC	-
187AX	Other	NC	BCBS
NCI407A	Other	NC	MEDICARE - NC
2784161	Medicaid	OH	-
7693936	Other	NC	AETNA
30184003	Other	SC	SELECT HEALTH
4578714	Other	NC	CIGNA

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 Benjamin Graef?

Benjamin Graef is registered in NPPES with the primary taxonomy of Sleep Medicine (Internal Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-25.