NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mitchell J Gruich, M.D., F.A.A.P.

Pediatrics Physician in Biloxi, MS · enumerated 2006.

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

National Provider Identifier

1154431351

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Registry record

Entity type Individual (Type 1)
Name Dr. Mitchell J Gruich
Credential M.D., F.A.A.P.
Sex Male
Practice address Biloxi, MS, 39531
Phone (228) 385-1711
Fax (228) 385-3333
Enumeration date Aug 30, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 13525 (MS) 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
00115028 Medicaid MS -

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

Where does Mitchell Gruich practice?
The practice location on file with NPPES is in Biloxi, MS. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mitchell Gruich?
The National Provider Identifier (NPI) for Mitchell Gruich is 1154431351, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.