Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael J Bittles, MD

Surgery Physician in Grafton, ND · enumerated 2006.

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

National Provider Identifier

1558457713

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael J Bittles

Credential MD

Sex Male

Practice address 164 W 13th St, Grafton, ND, 58237

Phone (017) 352-1620

Enumeration date Oct 5, 2006

Last updated in NPPES Oct 11, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 22811 (NE) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 01044969A (IN) 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
D03616	Other	NE	BCBS OF NEBRASKA
242893	Other	NE	MIDLANDS CHOICE
1700882	Other	NE	UNITED HEALTHCARE

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 Michael Bittles?

Michael Bittles is registered in NPPES with the primary taxonomy of Surgery 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 2023-10-11.