Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1205862406 Individual Practitioner Female Practitioner

Dr. Joann K. Thacker , PhD

Psychologist • Silver Spring, MD

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Joann Thacker, PhD is a certified Psychologist practicing in Silver Spring, MD. With approximately 45 years of clinical experience since completing medical education in 1981, Dr. Thacker delivers high-quality medical care to the local community at 11215 OAK LEAF DR.

Dr. Thacker is affiliated with Psychogeriatric Services Llc and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

11215 Oak Leaf Dr
Suite 108

Silver Spring, MD 209011317

Telephone 3015931315
Fax 3016814699
Associated Practice Facility / Clinic
🏢 Melvin J Stern Md Pa Facility NPI 1245246008

Medicare Profile & Education

Medical School

Other

Graduation Year

1981

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Silver Spring, MD

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
45 Yrs +5.8 yrs vs City Avg
City Avg: 39.2 Yrs
State Avg: 27.5 Yrs
Regional Practice Density
79 Specialists

Practicing in Silver Spring, MD (1248 Statewide)

Telehealth Adoption Rate
3.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
29.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Thacker (45 Years) 45 Yrs
Silver Spring Specialty Average (39.2 Years) 39.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
90834 Psychotherapy, 45 minutes
220 49 $150.00 $101.36
90832 Psychotherapy, 30 minutes
115 51 $100.00 $76.59
90791 Psychiatric diagnostic evaluation
71 71 $250.00 $165.60
90834 Psychotherapy, 45 minutes
55 15 $150.00 $117.70

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License MD 01659

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

Psychogeriatric Services Llc

11215 Oak Leaf Dr, Silver Spring, MD 209011300

Phone: 3015934222

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Tracy Blood , PhD

Psychologist - Clinical

NPI 1013280015

Doctor of Philosophy (Ph.D.)

NPI 1033149562

Doctor of Philosophy (Ph.D.)

Jennifer Sarisky , LCSW

Social Worker - Clinical

NPI 1043034341

Licensed Clinical Social Worker

Nancy Stauffer

Social Worker

NPI 1053998872
Marcia Heap

Social Worker - Clinical

NPI 1063176469
NPI 1063721918

Licensed Clinical Social Worker - Certified

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 11215 OAK LEAF DR, SUITE 108, SILVER SPRING, MD 209011317 (Tel: 3015931315)

📍
Updated Business Mailing Address July 08, 2007

Registered at 11215 OAK LEAF DR, SUITE 108, SILVER SPRING, MD 209011317 (Tel: 3015931315)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as JOANN THACKER, PHD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Psychologist (License #01659 in MD)

🟢
Initial NPI Registration & Enumeration June 23, 2006

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: 1205862406
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 23, 2006
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

11215 Oak Leaf Dr, Suite 108

Silver Spring, MD 209011317

Phone: 3015931315

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.