Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PSYCHOLOGICAL SERVICES, PC
NPI 1053650903
Psychologist in Norman, OK

Active since February 12, 2013
510 24TH AVE SW, NORMAN, OK 73069(405) 329-7923(405) 329-8815 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 28, 2026, Aug 20, 2026 (2 updates tracked since 2026).

About Psychological Services, Pc NPPES

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

PSYCHOLOGICAL SERVICES, PC (NPI 1053650903), doing business as Michael Lock, Ph.d., is a healthcare organization registered as a psychologist in Norman, Oklahoma and active in the NPI registry since February 2013. The organization maintains a secondary practice location in Norman and lists Michael L Lock, Owner/physician, as its authorized official.

NPPES Registry Identity

NPI1053650903
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NamePSYCHOLOGICAL SERVICES, PC
Location Address510 24TH AVE SWNorman, OK 73069-5106
Mailing Address3901 Colefax LnNorman, OK 73026-1405 · (918) 313-9636 · Fax (405) 329-8815
Fax(405) 329-8815
Organization SubpartNo
Authorized OfficialMichael L LockOwner/physician · (918) 313-9636
Enumeration DateFebruary 12, 2013
Last NPPES UpdateAugust 28, 20262 updates tracked since enumeration
NPPES CertifiedAugust 28, 2026
✔ NPI 1053650903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in OK · 611
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
510 24TH AVE SW, Norman, OK 73069

Other Names 1

Doing Business AsMichael Lock, Ph.d.

Secondary Practice Location 1

Location 13901 Colefax LnNorman, OK 73026-1405 · Phone (918) 313-9636 · Fax (405) 329-8815

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Psychological Services, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Psychological Services, PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1396858932
3901 COLEFAX LN
Norman, OK 73026
(918) 313-9636
✔ PECOS✔ Accepts Medicare11 mi

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

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 Psychological Services, PC's NPI number?

The NPI number for Psychological Services, PC is 1053650903. It was assigned to this organization in the NPPES registry on February 12, 2013. The provider is doing business as Michael Lock, Ph.D..

Where is Psychological Services, PC located?

Psychological Services, PC is located at 510 24th Ave SW, Norman, OK 73069. The listed phone number is (405) 329-7923.

What is Psychological Services, PC's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Psychological Services, PC enrolled in Medicare?

Yes. Psychological Services, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Psychological Services, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Psychological Services, PC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Psychological Services, PC was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days 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.