MARK STEPHENS JR. MD
NPI 1093370603
Neurological Surgery in Oklahoma City, OK

Active since May 08, 2019PECOS EnrolledAccepts Medicare Assignment
1000 N LINCOLN BLVD, OKLAHOMA CITY, OK 73104(405) 271-7000 Get Directions Write a Review

NPPES record last updated: April 26, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 26, 2026, May 8, 2019 (2 updates tracked since 2019).

About Mark Stephens Jr. Md NPPES

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

MARK STEPHENS JR. MD (NPI 1093370603) is an individual neurological surgery provider in Oklahoma City, Oklahoma, licensed in Oklahoma (34874) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Oklahoma City, Inc, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1093370603
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameMARK STEPHENS JR.Credential: MD
Location Address1000 N LINCOLN BLVDOklahoma City, OK 73104-3252
Mailing Address10508 Whitehaven RdOklahoma City, OK 73120-3038 · (210) 854-5622
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMay 8, 2019
Last NPPES UpdateApril 26, 20262 updates tracked since enumeration
NPPES CertifiedApril 26, 2026
✔ NPI 1093370603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in OK · 34874
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
1000 N LINCOLN BLVD, Oklahoma City, OK 73104

Accepted 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

Mark Stephens Jr. 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 ID3971073750
PECOS Enrollment IDI20260522000491
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 Mark Stephens reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
1200 CHILDRENS AVE STE 11200
Oklahoma City, OK 73104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 1,795 clinicians in this Medicare group
Family Medicine
4300 W MEMORIAL RD
Oklahoma City, OK 73120
  • Reassigned Medicare billing, Oklahoma enrollment
  • 975 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

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
$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 20

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

Neurological Surgery
1000 N LINCOLN BLVD
OKLAHOMA CITY, OK 73104
Internal Medicine (Gastroenterology)
1000 N LINCOLN BLVD, SUITE 210
OKLAHOMA CITY, OK 73104
Neurological Surgery
1000 N LINCOLN BLVD, STE 400
OKLAHOMA CITY, OK 73104
Physician Assistant (Surgical)
1000 N LINCOLN BLVD, SUITE 400
OKLAHOMA CITY, OK 73104
Specialist
1000 N LINCOLN BLVD, SUITE 300
OKLAHOMA CITY, OK 73104
Internal Medicine (Medical Oncology)
1000 N LINCOLN BLVD
OKLAHOMA CITY, OK 73104
Nurse Practitioner (Pediatrics)
1000 N LINCOLN BLVD, STE 400
OKLAHOMA CITY, OK 73104
Pain Medicine (Interventional Pain Medicine)
1000 N LINCOLN BLVD
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 Mark Stephens's NPI number?

The NPI number for Mark Stephens is 1093370603. It was assigned to this individual provider in the NPPES registry on May 8, 2019.

Where is Mark Stephens located?

Mark Stephens practices at 1000 N Lincoln Blvd, Oklahoma City, OK 73104. The listed phone number is (405) 271-7000.

What is Mark Stephens's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Mark Stephens enrolled in Medicare?

Yes. Mark Stephens 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 Mark Stephens's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Stephens reassigns Medicare benefits to 2 organizations: Ou Health Partners, Inc (Oklahoma City, OK) and Mercy Clinic Oklahoma Communities (Oklahoma City, 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 Mark Stephens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Stephens accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health and UnitedHealthcare list Mark Stephens 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 Mark Stephens affiliated with any hospitals?

According to CMS data, Mark Stephens is affiliated with Mercy Hospital Oklahoma City, Inc.

When was this NPI record last updated?

The NPPES record for Mark Stephens was last updated on April 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.