Dr Diana Okuniewski, DO - Medicare Obstetrics & Gynecology in Marshall, MI

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Dr Diana Okuniewski, DO is a medicare enrolled "Obstetrics & Gynecology" physician in Marshall, Michigan. Her current practice location is 215 E Mansion St Ste 3d, Marshall, Michigan. You can reach out to her office (for appointments etc.) via phone at (269) 558-0702.

Dr Diana Okuniewski is licensed to practice in Michigan (license number L1125376) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1184831547.

Contact Information

Dr Diana Okuniewski, DO
215 E Mansion St Ste 3d,
Marshall, MI 49068-1167
(269) 558-0702
Not Available

Map and Direction




Physician's Profile

Full NameDr Diana Okuniewski
GenderFemale
SpecialityObstetrics & Gynecology
Location215 E Mansion St Ste 3d, Marshall, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1184831547
  • Provider Enumeration Date: 05/16/2007
  • Last Update Date: 05/23/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8729245915
  • Enrollment ID: I20140131001431

Medical Identifiers

Medical identifiers for Dr Diana Okuniewski such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184831547NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology L1125376 (Michigan)Primary
207V00000XObstetrics & Gynecology 2245 (Maine)Secondary
207V00000XObstetrics & Gynecology DO01107 (Rhode Island)Secondary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Diana Okuniewski allows following entities to bill medicare on her behalf.
Entity NameMecosta County Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386693471
PECOS PAC ID: 1951215540
Enrollment ID: O20031118000335
Entity NameAscension Medical Group Promed
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497709869
PECOS PAC ID: 7315856077
Enrollment ID: O20031216000478
Entity NameMunson Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083761860
PECOS PAC ID: 3072426287
Enrollment ID: O20040108000904
Entity NameSparrow Carson Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598490542
PECOS PAC ID: 7113836701
Enrollment ID: O20040126000046
Entity NameNewaygo County General Hospital Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750404927
PECOS PAC ID: 4880503051
Enrollment ID: O20040423001232
Entity NameElla E M Brown Charitable Circle
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366591794
PECOS PAC ID: 1254228745
Enrollment ID: O20040616001008
Entity NameMemorial Medical Center Of West Michigan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972589489
PECOS PAC ID: 3678543659
Enrollment ID: O20071128000647
Entity NameObhg Michigan, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790120863
PECOS PAC ID: 3971739244
Enrollment ID: O20131114000576
Entity NameObhg Michigan - Direct Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164116570
PECOS PAC ID: 4082062534
Enrollment ID: O20231122001876

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Diana Okuniewski is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Diana Okuniewski, DO
1310 Wisconsin Ave, Suite 103,
Grand Haven, MI 49417-2472

Ph: (616) 844-4528		Dr Diana Okuniewski, DO
215 E Mansion St Ste 3d,
Marshall, MI 49068-1167

Ph: (269) 558-0702

Reviews and Comments


Obstetrics & Gynecology Doctors in Marshall, MI

Dr. Dustin James Hall, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 215 E Mansion St Ste 3d, Marshall, MI 49068
Phone: 269-558-0702    
Suzanne E Vandenbrink-webb, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 215 E Mansion St, Suite 3d, Marshall, MI 49068
Phone: 269-781-1183    Fax: 888-837-4893
Dr. Kathryn Young, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 139 West Mansion Street, Marshall, MI 49068
Phone: 269-248-6090    Fax: 269-248-6095
Loriann Zettell, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 13697 15 Mile Rd, Marshall, MI 49068
Phone: 269-789-4905    Fax: 269-789-7955
Marcia Lynn French, FNP-C
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 215 E Mansion St, Marshall, MI 49068
Phone: 289-781-3938    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.