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

Dr. Leander M Grimm, M.D.

Surgery Physician in Southaven, MS · enumerated 2006.

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

National Provider Identifier

1598877805

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Registry record

Entity type Individual (Type 1)

Name Dr. Leander M Grimm

Credential M.D.

Sex Male

Practice address Southaven, MS, 38671

Phone (662) 349-0311

Fax (662) 349-0121

Enumeration date Aug 31, 2006

Last updated in NPPES Oct 20, 2016

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 12705 (MS) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 20507 (TN) Secondary

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
3726800	Medicaid	TN	-
00111800	Medicaid	MS	-
4091934	Other	TN	BCBS TN PROVIDER 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

Is NPI 1598877805 active?

Yes, as of the latest NPPES snapshot, NPI 1598877805 is active (record last updated 2016-10-20).

How do I verify Leander Grimm's NPI record?

Cross-check NPI 1598877805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Thaddeus Gaillard Gynecology Physician · Southaven, MS NPI 1558413807

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-20.