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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karissa Leah Tryska, DO

Obstetrics & Gynecology Physician in Muskegon, MI · enumerated 2007.

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

National Provider Identifier

1174741409

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Registry record

Entity type Individual (Type 1)
Name Karissa Leah Tryska
Credential DO
Sex Female
Practice address 1675 Leahy St, Suite 428, Muskegon, MI, 49442
Phone (231) 672-3300
Fax (231) 672-3380
Enumeration date Apr 23, 2007
Last updated in NPPES Aug 10, 2012

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 5101015747 (MI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
700F110460 Other MI BLUE CROSS BLUE SHIELD
5204157 Medicaid MI -
KT015747 Other MI BLUE CARE NETWORK

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 1174741409 active?
Yes, as of the latest NPPES snapshot, NPI 1174741409 is active (record last updated 2012-08-10).
How do I verify Karissa Tryska's NPI record?
Cross-check NPI 1174741409 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-10.