Doctor Profile

Cardiology · Cardiovascular Disease (Cardiology)

John O. Schrader

MD · Cardiovascular Disease (Cardiology) · University Of Nebraska College Of Medicine
3200 QUAIL SPRINGS PKWY
SUITE 200
Oklahoma City, OK 73134
✓ Accepts Medicare 🎓 33+ Years Practicing
4.2K
Medicare Patients / yr
31
Procedures Billed
33
Years Practicing
5
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or John O. Schrader's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Schrader

See which plans Dr. Schrader accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Oklahoma, the fastest way to find a Medicare plan that covers Dr. Schrader is to compare every Medicare Advantage and Part D plan available near 73134, OK — the Cardiovascular Disease (Cardiology)'s office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 73134, OK →

Or call the office at (405) 241-3539 to confirm acceptance directly.

What Dr. Schrader Does

Dr. Schrader served 4,175 Medicare patients across 6,175 services in the latest CMS reporting year. That's 68% above the average Cardiovascular Disease (Cardiology) in Oklahoma (2,481 patients across 138 doctors).

ProcedureServicesMedicare Patients
Established patient office or other outpatient visit, 20-29 minutes (99213)1,448858
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)741714
Established patient office or other outpatient visit, 30-39 minutes (99214)513395
Ultrasound of both sides of head and neck blood flow (93880)455453
Established patient office or other outpatient visit, 10-19 minutes (99212)413383

How to read this: "Services" are the total times Dr. Schrader billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Schrader is affiliated with 5 hospitals according to CMS Physician Compare. Below are the 5 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Northwestern Medicine Central Dupage Hospital

Winfield, IL
★★★★★ 5/5 CMS Rating

Integris Health Enid Hospital

Enid, OK
★★★★☆ 4/5 CMS Rating

St Mary's Regional Medical Center

Enid, OK
★★★★☆ 4/5 CMS Rating

Fairview Regional Medical Center Authority

Fairview, OK
Rating not available

Share Medical Center

Alva, OK
Rating not available

Practice Location & Telehealth Readiness

Dr. Schrader practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Schrader offers telehealth — broadband availability at your home matters for virtual visits.

Address: 3200 QUAIL SPRINGS PKWY, SUITE 200, Oklahoma City, OK 73134
Phone: (405) 241-3539

Area Safety Grade

D

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

25 min

Average commute time in this zip · 88% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

80.2140

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Cardiology Doctors near 73134, OK

If Dr. Schrader isn't accepting new patients or isn't in your plan's network, these are the closest cardiology doctors near 73134, OK:

DoctorSpecialtyMedicare Patients / yrDistance
Dwayne A. SchmidtCardiovascular Disease (Cardiology)6.1K<1 mi
Khalida KhaledInterventional Cardiology20<1 mi
William L. GarnerInterventional Cardiology5.8K<1 mi
John M. WilliamsInterventional Cardiology4.5K<1 mi
Marcus J. SmithInterventional Cardiology6.3K<1 mi

View all cardiology doctors near 73134, OK →

How to Use This Information

Choosing a Medicare plan that covers Dr. Schrader takes three steps:

Compare Medicare Plans near 73134, OK → All Doctors near 73134, OK

John O. Schrader: Common Questions

Does Dr. Schrader accept Medicare?
Yes. Dr. Schrader is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Schrader depends on that plan's provider network. Compare Medicare plans near 73134, OK →
Where is Dr. Schrader's office?
Dr. Schrader practices at 3200 QUAIL SPRINGS PKWY, SUITE 200, Oklahoma City, OK 73134. Phone: (405) 241-3539.
What Medicare plans does Dr. Schrader accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (405) 241-3539 to confirm your specific plan is accepted, or compare all Medicare plans near 73134, OK to see available options.
Does Dr. Schrader offer telehealth visits?
CMS does not currently list Dr. Schrader as offering telehealth. Call the office at (405) 241-3539 to confirm whether virtual visits are available.
How experienced is Dr. Schrader?
Dr. Schrader graduated in 1993 and has been practicing for approximately 33 years. In the latest CMS reporting year, Dr. Schrader treated 4,175 Medicare patients across 31 distinct procedure types.
How do I know if Dr. Schrader is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (405) 241-3539 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile →LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology →Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Cardiology Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 73134, OK:

Does your Medicare plan cover Dr. Schrader?

Compare Plans near 73134, OK →