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Active NPI 1639616196 Individual Practitioner Female Practitioner

Dr. Tatia T Williams , PsyD

Psychologist • Powell, OH

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Tatia Williams, PsyD is a certified Psychologist practicing in Powell, OH. With approximately 10 years of clinical experience since completing medical education in 2016, Dr. Williams delivers high-quality medical care to the local community at 7171 SAWMILL PKWY STE 2B.

Dr. Williams is affiliated with Mid-Ohio Psychological Services, Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include psychotherapy. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

7171 Sawmill Pkwy Ste 2b

Powell, OH 430657828

Telephone 6142934969
Fax 6142936111
Associated Practice Facility / Clinic
🏢 Osu Neuroscience Center, Llc Facility NPI 1932199254

Medicare Profile & Education

Medical School

Other

Graduation Year

2016

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Powell, OH

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
10 Yrs -12.0 yrs vs City Avg
City Avg: 22.0 Yrs
State Avg: 26.0 Yrs
Regional Practice Density
4 Specialists

Practicing in Powell, OH (1639 Statewide)

Telehealth Adoption Rate
50.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
11.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (10 Years) 10 Yrs
Powell Specialty Average (22.0 Years) 22.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2019)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
90837 Psychotherapy, 60 minutes
161 11 $150.00 $132.78

Medical Specialties & State Licenses

CMS Verified: 2026-08-05
Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License OH P.7538

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.

Counselor - Professional

NUCC Taxonomy Code: 101YP2500X

State License OH E.1100254-SUPV

Definition to come...

Hospital & Practice Group Affiliations

Mid-Ohio Psychological Services, Inc

106 Starret St, Lancaster, OH 431303993

Phone: 7406870042

Secondary Practice Locations

68 W Church St Ste 318

Newark, OH 430555050

Phone: 7404179265

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Emily Webster , LISW

Social Worker - Clinical

NPI 1013421940

Licensed Independent Social Worker

Dr. Claire Alexander , PhD

Psychologist - Clinical

NPI 1013477397

Doctor of Philosophy (Ph.D.)

Dr. Blanca Talavera De La Esperanza , MD

Psychiatry & Neurology - Epilepsy

NPI 1013611961

Doctor of Medicine (M.D.)

Thomas Zammit , PA-C

Physician Assistant

NPI 1013766229

Physician Assistant (Certified)

Dr. Sushil Lakhani , MD

Psychiatry & Neurology - Vascular Neurology

NPI 1033422324

Doctor of Medicine (M.D.)

Rozena Davis , APRN-CNP

Nurse Practitioner - Family

NPI 1033624564

Advanced Practice Registered Nurse - Certified Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

13 Historical Events
📍
Updated Practice Location August 05, 2026

Registered at 7171 SAWMILL PKWY STE 2B, POWELL, OH 430657828 (Tel: 6142934969)

📍
Updated Business Mailing Address August 05, 2026

Registered at 700 ACKERMAN RD STE 2120, COLUMBUS, OH 432021559 (Tel: 6142934969)

👤
Provider Name / Credentials Updated August 05, 2026

Recorded as TATIA WILLIAMS, PSYD

📍
Updated Practice Location May 08, 2024

Registered at 68 W CHURCH ST STE 318, NEWARK, OH 430555050 (Tel: 7404179265)

📍
Updated Business Mailing Address May 08, 2024

Registered at 68 W CHURCH ST STE 318, NEWARK, OH 430555050 (Tel: 7404179265)

📍
Updated Practice Location December 23, 2019

Registered at 106 STOVER DR, DELAWARE, OH 430158601 (Tel: 7404179265)

📍
Updated Business Mailing Address December 23, 2019

Registered at 106 STOVER DR, DELAWARE, OH 430158601 (Tel: 7404179265)

NPI Profile Active February 13, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location February 13, 2017

Registered at 236 W CENTRAL AVE, DELAWARE, OH 430151739 (Tel: 7404179265)

📍
Updated Business Mailing Address February 13, 2017

Registered at 236 W CENTRAL AVE, DELAWARE, OH 430151739 (Tel: 7404179265)

👤
Provider Name / Credentials Updated February 13, 2017

Recorded as TATIA WILLIAMS, PSY.D., PSYCHOLOGIST

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 13, 2017

Counselor (License #E.1100254-SUPV in OH)

🟢
Initial NPI Registration & Enumeration January 23, 2017

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

NPI Number: 1639616196
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 23, 2017
Last Update: August 05, 2026
Sole Proprietor: No

Mailing Address

700 Ackerman Rd Ste 2120

Columbus, OH 432021559

Phone: 6142934969

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

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.