Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leonard Mark Gutnik, M.D.

Internal Medicine Physician in Sioux Falls, SD · enumerated 2006 · practices at Avera Mckennan.

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

National Provider Identifier

1841265543

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Registry record

Entity type Individual (Type 1)

Name Leonard Mark Gutnik

Credential M.D.

Sex Male

Practice address 6100 S Louise Ave Ste 1120, Sioux Falls, SD, 57108

Phone (605) 504-1700

Enumeration date Feb 17, 2006

Last updated in NPPES Oct 31, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2478 (SD) 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
46022474335	Medicaid	NE	-
6000623	Medicaid	SD	-
30B75GU	Other	MN	CC SYSTEMS/ BLUE PLUS
0404413	Other	SD	MEDICA
12262	Medicaid	ND	-
23146	Other	SD	ARAZ/ AMERICA'S PPO
370624200	Other	SD	DEPT OF LABOR
57105F002	Other	SD	WPS TRICARE
769201017553	Other	SD	PREFERRED ONE
914505200	Medicaid	MN	-
0005586	Other	SD	BLUE CROSS
110211778	Other	SD	RR MEDICARE
1526	Other	SD	MIDLANDS CHOICE
2478	Other	SD	DAKOTACARE
24850	Other	SD	SANFORD HEALTH PLAN
2920900	Medicaid	IA	-
92411422901	Other	MN	PRIMEWEST
HP32254	Other	SD	HEALTHPARTNERS

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 Leonard Gutnik practice?

The practice location on file with NPPES is in Sioux Falls, SD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Leonard Gutnik?

The National Provider Identifier (NPI) for Leonard Gutnik is 1841265543, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-31.