Doctor profile · Federal record

Dr. Karissa Tryska, DO

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Muskegon, MI

  • NPI 1174741409
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1675 Leahy St, Suite 428
Muskegon, MI 494425500
(231) 672-3300
fax (231) 672-3380
Mailing address
Po Box 1847
Muskegon, MI 494431847

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
August 10, 2012
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
Michigan #5101015747
Medicaid
MI #5204157

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174741409. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$1,082
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 16 15 $68

In context: peer comparison

Among 3 peers in this city , average services per provider: 21. This provider delivers 0.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$201
Transactions
6
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Medical Device Business Services, Inc. 1 $85.68
Hologic Sales and Service, LLC 1 $41.58
PFIZER INC. 1 $21.30
Organon Llc 1 $20.87
Bayer Healthcare Pharmaceuticals Inc. 1 $17.94
CooperSurgical, Inc. 1 $14.06

By nature of payment

Food and Beverage
$201

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
57
Patients
16
Total drug cost
$3,099
Drug Type Claims Patients Total cost
Estradiol Generic 46 16 $2,977
Medroxyprogesterone Acetate Generic 11 0 $122

Frequently asked questions

Auto-generated from federal data
What is Dr. Karissa Tryska's medical specialty?
Dr. Karissa Tryska practices Obstetrics & Gynecology Physician in Muskegon, MI.
Where does Dr. Karissa Tryska practice?
Dr. Karissa Tryska practices at 1675 Leahy St, Muskegon, MI 494425500. Office phone: 2316723300.
What is Dr. Karissa Tryska's NPI?
Dr. Karissa Tryska's National Provider Identifier (NPI) is 1174741409, issued by NPPES.
Does Dr. Karissa Tryska accept Medicare assignment?
Yes. Dr. Karissa Tryska accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karissa Tryska commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.