BRENNAN DAVID WALKER APRN, CNP
NPI 1215692702
Nurse Practitioner - Acute Care in Oklahoma City, OK

Active since November 01, 2021PECOS EnrolledAccepts Medicare Assignment
99.15/100
CMS Quality Rating
4050 W MEMORIAL RD FL 3, OKLAHOMA CITY, OK 73120(405) 608-3800(405) 242-5946 Get Directions Write a Review

NPPES record last updated: February 16, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 16, 2023, Oct 26, 2022, Nov 9, 2021 and 1 more (4 updates tracked since 2021).

About Brennan David Walker Aprn, Cnp NPPES

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

BRENNAN DAVID WALKER APRN, CNP (NPI 1215692702) is an individual acute care provider in Oklahoma City, Oklahoma, licensed in Oklahoma (204622) and active in the NPI registry since November 2021. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Oklahoma City, Inc, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1215692702
Entity TypeIndividualMale
Primary Taxonomy363LA2100X
Provider Legal NameBRENNAN DAVID WALKERCredential: APRN, CNP
Location Address4050 W MEMORIAL RD FL 3Oklahoma City, OK 73120-8382
Mailing Address7800 Nw 85th TerOklahoma City, OK 73132-3385
Fax(405) 242-5946
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateNovember 1, 2021
Last NPPES UpdateFebruary 16, 20234 updates tracked since enumeration
NPPES CertifiedFebruary 16, 2023
NPI 1215692702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License Licensed in OK · 204622
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 204622 (OK)
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License 204622 (OK)
4050 W MEMORIAL RD FL 3, Oklahoma City, OK 73120

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

Brennan David Walker Aprn, Cnp 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 ID3274923479
PECOS Enrollment IDI20211202000414
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
448 services395 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
387 services340 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
55 services29 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
21 services20 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services15 patients

Hospital Affiliations CMS Care Compare 5

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

Mercy Hospital Oklahoma City, Inc

Acute Care Hospitals · Oklahoma City, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370013
Location4300 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County
Emergency services Birthing friendly

Integris Baptist Medical Center, Inc

Acute Care Hospitals · Oklahoma City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370028
Location3300 Northwest ExpresswayOklahoma City, OK 73112 · Oklahoma County
Emergency services Birthing friendly

Oklahoma Heart Hospital, LLC

Acute Care Hospitals · Oklahoma City, OK
4/5 CMS rating
OwnershipPhysician
CMS Certification Number370215
Location4050 West Memorial RoadOklahoma City, OK 73120 · Oklahoma County
Emergency services

Oklahoma Heart Hospital South, LLC

Acute Care Hospitals · Oklahoma City, OK
5/5 CMS rating
OwnershipPhysician
CMS Certification Number370234
Location5200 East I-240 Service RoadOklahoma City, OK 73135 · Oklahoma County
Emergency services

Mercy Hospital Guthrie

Critical Access Hospitals · Guthrie, OK
OwnershipVoluntary non-profit - Private
CMS Certification Number371317
Location200 S Academy RdGuthrie, OK 73044 · Logan County
Emergency services

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
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
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.

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.

99.15/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability99
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

Internal Medicine (Cardiovascular Disease)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Internal Medicine (Interventional Cardiology)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Thoracic Surgery (Cardiothoracic Vascular Surgery)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Internal Medicine (Clinical Cardiac Electrophysiology)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Internal Medicine (Interventional Cardiology)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Nurse Practitioner (Family)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Physician Assistant
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120
Nurse Practitioner (Acute Care)
4050 W MEMORIAL RD FL 3
OKLAHOMA CITY, OK 73120

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 Brennan Walker's NPI number?

The NPI number for Brennan Walker is 1215692702. It was assigned to this individual provider in the NPPES registry on November 1, 2021.

Where is Brennan Walker located?

Brennan Walker practices at 4050 W Memorial Rd Fl 3, Oklahoma City, OK 73120. The listed phone number is (405) 608-3800.

What is Brennan Walker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Brennan Walker enrolled in Medicare?

Yes. Brennan Walker 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 Brennan Walker accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Brennan Walker 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 Brennan Walker affiliated with any hospitals?

According to CMS data, Brennan Walker is affiliated with Mercy Hospital Oklahoma City, Inc, Integris Baptist Medical Center, Inc, Oklahoma Heart Hospital, LLC, Oklahoma Heart Hospital South, LLC and Mercy Hospital Guthrie.

When was this NPI record last updated?

The NPPES record for Brennan Walker was last updated on February 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.