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

NPI Status: Active since May 08, 2019

Contact Information

1000 N LINCOLN BLVD
OKLAHOMA CITY, OK
ZIP 73104
Phone: (405) 271-7000

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  • Individual
  • Male
  • Neurological Surgery

About MARK STEPHENS

This page provides the complete NPI Profile along with additional information for Mark Stephens, a provider established in Oklahoma City, Oklahoma with a medical specialization in Neurological Surgery. The healthcare provider is registered in the NPI registry with number 1093370603 assigned on May 2019. The practitioner's primary taxonomy code is 207T00000X with license number 34874 (OK). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1093370603
Provider Name
MARK STEPHENS JR. MD
Gender
Male
Entity Type
Individual
Location Address
1000 N LINCOLN BLVD OKLAHOMA CITY, OK 73104
Location Phone
(405) 271-7000
Mailing Address
10508 WHITEHAVEN RD OKLAHOMA CITY, OK 73120
Mailing Phone
(210) 854-5622
Is Sole Proprietor?
No
Enumeration Date
05-08-2019
Last Update Date
04-26-2026
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Neurological Surgery

Taxonomy Code
207T00000X
Type
Allopathic & Osteopathic Physicians
License No.
34874
License State
OK
Taxonomy Description
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.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1093370603, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
0
Doubled → 0
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 3 → 6 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 8 + 3 + 6 + 7 + 0 + 6 + 0 + 24 = 57

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1093370603.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dentist (Oral and Maxillofacial Surgery)
1000 N LINCOLN BLVD, STE 200
OKLAHOMA CITY, OK 73104
Internal Medicine (Gastroenterology)
1000 N LINCOLN BLVD, SUITE 210
OKLAHOMA CITY, OK 73104
Anesthesiology
1000 N LINCOLN BLVD
OKLAHOMA CITY, OK 73104
Anesthesiology
1000 N LINCOLN BLVD, SUITE 150
OKLAHOMA CITY, OK 73104
Physician Assistant
1000 N LINCOLN BLVD
OKLAHOMA CITY, OK 73104
Neurological Surgery
1000 N LINCOLN BLVD, SUITE 400
OKLAHOMA CITY, OK 73104
Neurological Surgery
1000 N LINCOLN BLVD, SUITE 400
OKLAHOMA CITY, OK 73104
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1000 N LINCOLN BLVD, SUITE 1000
OKLAHOMA CITY, OK 73104
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1000 N LINCOLN BLVD, SUITE 1000
OKLAHOMA CITY, OK 73104
Specialist
1000 N LINCOLN BLVD, SUITE 300
OKLAHOMA CITY, OK 73104
Dentist (Oral and Maxillofacial Surgery)
1000 N LINCOLN BLVD, STE 200
OKLAHOMA CITY, OK 73104
Physician Assistant (Surgical)
1000 N LINCOLN BLVD, SUITE 400
OKLAHOMA CITY, OK 73104
Obstetrics & Gynecology (Reproductive Endocrinology)
1000 N LINCOLN BLVD, SUITE 300
OKLAHOMA CITY, OK 73104
Physiological Laboratory
1000 N LINCOLN BLVD, SUITE 210
OKLAHOMA CITY, OK 73104
Obstetrics & Gynecology (Reproductive Endocrinology)
1000 N LINCOLN BLVD, SUITE 300
OKLAHOMA CITY, OK 73104
Clinic/Center
1000 N LINCOLN BLVD, 400
OKLAHOMA CITY, OK 73104
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1000 N LINCOLN BLVD, SUITE 1000
OKLAHOMA CITY, OK 73104
Neurological Surgery
1000 N LINCOLN BLVD, STE 400
OKLAHOMA CITY, OK 73104
Dietitian, Registered (Nutrition, Metabolic)
1000 N LINCOLN BLVD, SUITE 2900
OKLAHOMA CITY, OK 73104
Neurological Surgery
1000 N LINCOLN BLVD, SUITE 400
OKLAHOMA CITY, OK 73104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093370603, enumerated as an "individual" on May 08, 2019.

The provider is located at 1000 N LINCOLN BLVD OKLAHOMA CITY, OK 73104 and the phone number is (405) 271-7000.

Neurological Surgery with taxonomy code 207T00000X.