Dr. Mary C Underhill , PsyD
Psychologist • Norman, OK
Professional Overview & Biography Verified Profile Summary
Dr. Mary Underhill, PsyD is a certified Psychologist practicing in Norman, OK. With approximately 15 years of clinical experience since completing medical education in 2011, Dr. Underhill delivers high-quality medical care to the local community at 712 WALL ST.
Dr. Underhill is affiliated with Norman Behavioral Health Group, Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.
Frequently performed procedures and clinical services include psychiatric diagnostic evaluation, administration of psychological or neuropsychological test, administration of psychological or neuropsychological test, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
712 Wall St
Norman, OK 730696360
Medicare Profile & Education
Other
2011
✓ Accepts Assignment
Telehealth Services Available
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in Norman, OK
Practicing in Norman, OK (284 Statewide)
✓ Offers Virtual Consultations
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
90791
Psychiatric diagnostic evaluation
|
15 | 15 | $186.00 | $161.03 |
|
96137
Administration of psychological or neuropsychological test, each additional 30 minutes
|
14 | 14 | $50.00 | $31.93 |
|
96136
Administration of psychological or neuropsychological test, first 30 minutes
|
14 | 14 | $50.00 | $35.88 |
|
96130
Evaluation of psychological test, first hour
|
14 | 14 | $120.00 | $111.99 |
Medical Specialties & State Licenses
CMS Verified: 2026-07-08NUCC Taxonomy Code: 103T00000X
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.
Hospital & Practice Group Affiliations
Norman Behavioral Health Group, Llc
712 Wall St, Norman, OK 730696360
Phone: 4055797560
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Counselor - Professional
Licensed Professional Counselor
Nurse Practitioner - Psychiatric/Mental Health
Nurse Practitioner
Counselor
Master of Science, Licensed Professional Counselor
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Psychologist - Counseling
Doctor of Philosophy (Ph.D.)
Counselor - Professional
Licensed Professional Counselor
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 712 WALL ST, NORMAN, OK 730696360 (Tel: 4055797560)
Registered at 4201 FOX CROFT RD, NORMAN, OK 730260905 (Tel: 9545520388)
NPI status registered as active in NPPES database
Registered at 1044 SW 4TH ST, MOORE, OK 731602405 (Tel: 4057356333)
Registered at 1044 SW 4TH ST, MOORE, OK 731602405 (Tel: 4057356333)
Recorded as MARY UNDERHILL, PSY.D.
Psychologist (License #1159 in OK)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
4201 Fox Croft Rd
Norman, OK 730260905
Phone: 9545520388
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.