1. Home
  2. Directory
  3. Oklahoma
  4. City
  5. Obstetrics Gynecology
  6. NPI Profile

RONAN ALEXANDER BAKKER M.D.
NPI 1013278613
Obstetrics & Gynecology - Maternal & Fetal Medicine in Oklahoma City, OK

Active since May 31, 2012PECOS EnrolledAccepts Medicare Assignment
4140 W MEMORIAL RD STE 321, OKLAHOMA CITY, OK 73120(405) 748-4726(405) 607-8497 Get Directions Write a Review

NPPES record last updated: January 10, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 10, 2020, Sep 12, 2019, Jul 8, 2019 and 2 more (5 updates tracked since 2019).

About Ronan Alexander Bakker M.d. NPPES

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

RONAN ALEXANDER BAKKER M.D. (NPI 1013278613) is an individual maternal & fetal medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (32144) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1013278613
Entity TypeIndividualMale
Primary Taxonomy207VM0101X
Provider Legal NameRONAN ALEXANDER BAKKERCredential: M.D.
Location Address4140 W MEMORIAL RD STE 321Oklahoma City, OK 73120-8300
Mailing AddressPo Box 268984Oklahoma City, OK 73126-8984 · (405) 748-4726 · Fax (405) 607-8497
Phone(405) 748-4726
Fax(405) 607-8497
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateMay 31, 2012
Last NPPES UpdateJanuary 10, 20205 updates tracked since enumeration
✔ NPI 1013278613 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in OK · 32144
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
4140 W MEMORIAL RD STE 321, Oklahoma City, OK 73120
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13435 NW 56th St Ste 303Oklahoma City, OK 73112-4414 · Phone (405) 606-2850 · Fax (405) 606-2855
Location 23501 24th Ave NW Ste 101Norman, OK 73069-6665 · Phone (405) 801-2542 · Fax (405) 801-2564

Other Identifiers 2

Medicaid200690020AOK
Other836395OK · Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ronan Alexander Bakker M.d. 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 ID1658510342
PECOS Enrollment IDI20190813001033
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Ronan Bakker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Perinatal Center, PLLC
Same address
Maternal & Fetal Medicine
4140 W MEMORIAL RD STE 321
Oklahoma City, OK 73120
  • Reassigned Medicare billing, Oklahoma enrollment
  • 14 clinicians in this Medicare group
NPI 1942217815 (405) 748-4726
Chickasaw Nation Division Of Health
44 mi
Primary Care
1438 HARDCASTLE BLVD
Purcell, OK 73080
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Chickasaw Nation Division Of Health Chickasaw Nation Medical Center
  • 324 clinicians in this Medicare group
NPI 1982764395 (405) 527-4700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73120 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
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.68 – $132.40
Typical copayment $16.62 (range $4.17 – $33.10)
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.

Other Providers at the Same Location NPPES 13

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

JAE LINDSAY MARIE CHALONER MS, LGC
Genetic Counselor, MS
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
LACEY BECKER ARNP-CNP
Nurse Practitioner
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
DR. LAURA RHEA WHITEAKER GAINEY M.D., PH.D.
Obstetrics & Gynecology
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
STACEY L RHEA RD, LD, CDCES
Dietitian, Registered
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
JENNIFER PAIGE MOLINSKY AGCNS-BC
Nurse Practitioner
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
MRS. SARAH JUDKINS RD
Dietitian, Registered
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
ANGELIQUE M MARTIN L.D.
Dietitian, Registered
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726
OBSTETRICAL HOSPITALISTS & WOMEN'S SERVICES, LLC
Obstetrics & Gynecology
4140 W MEMORIAL RD STE 321
OKLAHOMA CITY, OK 73120
Oklahoma County (405) 748-4726

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 Ronan Bakker's NPI number?

The NPI number for Ronan Bakker is 1013278613. It was assigned to this individual provider in the NPPES registry on May 31, 2012.

Where is Ronan Bakker located?

Ronan Bakker practices at 4140 W Memorial Rd Ste 321, Oklahoma City, OK 73120. The listed phone number is (405) 748-4726.

What is Ronan Bakker's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Ronan Bakker enrolled in Medicare?

Yes. Ronan Bakker 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.

Which organizations bill Medicare for Ronan Bakker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronan Bakker reassigns Medicare benefits to 2 organizations: The Perinatal Center, PLLC (Oklahoma City, OK) and Chickasaw Nation Division Of Health (Purcell, OK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ronan Bakker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronan Bakker accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 6 other insurers list Ronan Bakker 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 Ronan Bakker was last updated on January 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.