DR. DIANA OKUNIEWSKI D.O.
NPI 1184831547
Obstetrics & Gynecology in Marshall, MI

Q: What is Diana Okuniewski's NPI number?

The NPI number for Diana Okuniewski is 1184831547. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Q: What is Diana Okuniewski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Diana Okuniewski was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 16, 2007PECOS Enrolled

215 E MANSION ST STE 3D, MARSHALL, MI 49068(269) 558-0702 Get Directions Write a Review

NPPES record last updated: May 23, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: May 23, 2025, Sep 3, 2024, Oct 16, 2023 and 1 more (4 updates tracked since 2022).

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About Dr. Diana Okuniewski D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DIANA OKUNIEWSKI D.O. (NPI 1184831547) is an individual obstetrics & gynecology provider in Marshall, Michigan, licensed in Michigan (L1125376) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Grand Haven.

NPPES Registry Identity

NPI1184831547

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameDR. DIANA OKUNIEWSKICredential: D.O.

Location Address215 E MANSION ST STE 3DMarshall, MI 49068-1167

Mailing Address1310 Wisconsin Ave, Suite 103Grand Haven, MI 49417-2472 · (616) 844-4528 · Fax (616) 847-5608

Phone(269) 558-0702

Sole ProprietorNo

Enumeration DateMay 16, 2007

Last NPPES UpdateMay 23, 20254 updates tracked since enumeration

NPPES CertifiedMay 23, 2025

✔ NPI 1184831547 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

Licenses✔ Licensed in MI · L1125376✔ Licensed in ME · 2245✔ Licensed in RI · DO01107

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

215 E MANSION ST STE 3D, Marshall, MI 49068

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Secondary Practice Location 1

Location 11445 Sheldon Rd, Suite 301Grand Haven, MI 49417-2480 · Phone (616) 847-2500 · Fax (616) 847-6719

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diana Okuniewski D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49068 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.15 typical visit price

range $54.34 – $166.68

Typical copayment $31.53 (range $13.58 – $41.67)

Most-billed visit code 99204

Established Patient

$68.07 typical visit price

range $17.09 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen

100%21 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DUSTIN JAMES HALL D.O.

Obstetrics & Gynecology

215 E MANSION ST STE 3D
MARSHALL, MI 49068

Calhoun County (269) 558-0702

GIGI SUTTON CNM

Advanced Practice Midwife

215 E MANSION ST STE 3D
MARSHALL, MI 49068

Calhoun County (269) 558-0702

DUSTANN RAYE SPALDING FNP-C

Advanced Practice Midwife

215 E MANSION ST STE 3D
MARSHALL, MI 49068

Calhoun County (269) 781-1183

SARA JORDAN SMITH

Obstetrics & Gynecology

215 E MANSION ST STE 3D
MARSHALL, MI 49068

Calhoun County (269) 558-0702

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Okuniewski's NPI number?

The NPI number for Diana Okuniewski is 1184831547. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Where is Diana Okuniewski located?

Diana Okuniewski practices at 215 E Mansion St Ste 3D, Marshall, MI 49068. The listed phone number is (269) 558-0702.

What is Diana Okuniewski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Diana Okuniewski enrolled in Medicare?

Yes. Diana Okuniewski is registered in the Medicare PECOS enrollment system.

What insurance does Diana Okuniewski accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and Priority Health list Diana Okuniewski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Diana Okuniewski was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.