Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Claud M Grigg, M.D.

Internal Medicine Physician in Charlotte, NC · enumerated 2007.

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

National Provider Identifier

1598822611

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Claud M Grigg

Credential M.D.

Sex Male

Practice address 125 Baldwin Ave, Suite 200, Charlotte, NC, 28204

Phone (704) 384-5043

Fax (704) 384-8895

Enumeration date Jan 2, 2007

Last updated in NPPES Mar 15, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 13117 (NC) 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
E37585	Medicaid	SC	-
8937585	Medicaid	NC	-
37585	Other	NC	NC BCBS

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

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 Claud Grigg?

Claud Grigg is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-15.