GRACE E DUININCK MD
NPI 1205327368
Obstetrics & Gynecology - Gynecologic Oncology in Oklahoma City, OK

Active since May 24, 2018PECOS EnrolledAccepts Medicare Assignment
800 NE 10TH ST STE 3010, OKLAHOMA CITY, OK 73104(405) 271-8778(405) 271-2724 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 16, 2025, May 24, 2018 (2 updates tracked since 2018).

About Grace E Duininck Md NPPES

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

GRACE E DUININCK MD (NPI 1205327368) is an individual gynecologic oncology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (33939) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and is a graduate of Emory University School Of Medicine (2018).

NPPES Registry Identity

NPI1205327368
Entity TypeIndividualFemale
Primary Taxonomy207VX0201X
Provider Legal NameGRACE E DUININCKCredential: MD
Location Address800 NE 10TH ST STE 3010Oklahoma City, OK 73104-5418
Mailing Address800 Ne 10th St Ste 3010Oklahoma City, OK 73104-5418 · (405) 271-8778 · Fax (405) 271-2724
Fax(405) 271-2724
Sole ProprietorNo
Medical School CMSEmory University School Of MedicineGraduated 2018
Enumeration DateMay 24, 2018
Last NPPES UpdateDecember 16, 20252 updates tracked since enumeration
NPPES CertifiedDecember 16, 2025
NPI 1205327368 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License Licensed in OK · 33939
Definition

An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.

800 NE 10TH ST STE 3010, Oklahoma City, OK 73104

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Grace E Duininck Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6204184138
PECOS Enrollment IDI20251201003437
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370093
Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73104 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
$162.61 typical visit price
range $53.00 – $162.61
Typical copayment $40.65 (range $13.25 – $40.65)
Most-billed visit code 99205
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

Internal Medicine (Medical Oncology)
800 NE 10TH ST STE 3010
OKLAHOMA CITY, OK 73104

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 Grace Duininck's NPI number?

The NPI number for Grace Duininck is 1205327368. It was assigned to this individual provider in the NPPES registry on May 24, 2018.

Where is Grace Duininck located?

Grace Duininck practices at 800 NE 10th St Ste 3010, Oklahoma City, OK 73104. The listed phone number is (405) 271-8778.

What is Grace Duininck's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Grace Duininck enrolled in Medicare?

Yes. Grace Duininck is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Grace Duininck accept?

Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Grace Duininck 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.

Is Grace Duininck affiliated with any hospitals?

According to CMS data, Grace Duininck is affiliated with O U Medical Center.

When was this NPI record last updated?

The NPPES record for Grace Duininck was last updated on December 16, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.