Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Henry Zielinski, M.D.

Psychiatry Physician in Baton Rouge, LA · enumerated 2007 · practices at Nephrology Management LLC.

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

National Provider Identifier

1194875625

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark Henry Zielinski

Credential M.D.

Sex Male

Practice address 5131 Odonovan Dr, Ste. 300, Baton Rouge, LA, 70808

Phone (225) 374-0400

Fax (225) 374-0430

Enumeration date Jan 10, 2007

Last updated in NPPES Feb 16, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 09052R (LA) Secondary

2084P0805X Geriatric Psychiatry Physician Allopathic & Osteopathic Physicians · License 09052R (LA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 09052R (LA) 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
5R123D497	Other	-	MEDICARE
08926398	Medicaid	MS	-
1931268	Medicaid	LA	-

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 NPI 1194875625 active?

Yes, as of the latest NPPES snapshot, NPI 1194875625 is active (record last updated 2022-02-16).

How do I verify Mark Zielinski's NPI record?

Cross-check NPI 1194875625 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-16.