Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1265478259 Individual Practitioner Female Practitioner

Dr. Diane Sizer , PhD

Psychologist • Southampton, PA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Diane Sizer, PhD is a certified Psychologist practicing in Southampton, PA. With approximately 33 years of clinical experience since completing medical education in 1993, Dr. Sizer delivers high-quality medical care to the local community at 928 JAYMOR RD STE B-150.

Dr. Sizer is affiliated with Growth Opportunity Center 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

928 Jaymor Rd Ste B-150

Southampton, PA 189663853

Telephone 2159478654
Fax 2159387607
Associated Practice Facility / Clinic
🏢 Growth Opportunity Center Facility NPI 1649222761

Medicare Profile & Education

Medical School

Other

Graduation Year

1993

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Southampton, PA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
33 Yrs +6.7 yrs vs City Avg
City Avg: 26.3 Yrs
State Avg: 26.7 Yrs
Regional Practice Density
13 Specialists

Practicing in Southampton, PA (2901 Statewide)

Telehealth Adoption Rate
23.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
9.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sizer (33 Years) 33 Yrs
Southampton Specialty Average (26.3 Years) 26.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
90837 Psychotherapy, 60 minutes
216 20 $175.00 $155.11
90791 Psychiatric diagnostic evaluation
18 18 $200.00 $185.21

Medical Specialties & State Licenses

CMS Verified: 2024-07-03
Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License PA PS008239L

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.

Psychologist

NUCC Taxonomy Code: 103T00000X

State License PA PS-008239-L

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

Growth Opportunity Center

928 Jaymor Rd, Southampton, PA 189663853

Phone: 2159478654

Secondary Practice Locations

928 Jaymor Rd Ste B-150

Southampton, PA 189663853

Phone: 8567459579

Practice Associates & Co-Workers

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

40 Associated Practitioners
Barbara Bale , MSS

Counselor - Mental Health

NPI 1013945377
Irena Cohen , MA

Counselor - Mental Health

NPI 1013949718

Master of Arts

Elizabeth Grecco , LCSW

Social Worker - Clinical

NPI 1043098015

Licensed Clinical Social Worker

Susan Smallow , LCSW

Counselor - Mental Health

NPI 1073542486

Licensed Clinical Social Worker

NPI 1093680662

Doctor of Psychology (Psy.D.)

NPI 1093750788

Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location July 03, 2024

Registered at 928 JAYMOR RD STE B-150, SOUTHAMPTON, PA 189663853 (Tel: 2159478654)

📍
Updated Business Mailing Address July 03, 2024

Registered at 928 JAYMOR RD STE B-150, SOUTHAMPTON, PA 189663853 (Tel: 8567459579)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 03, 2024

Psychologist (License #PS-008239-L in PA)

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 2901 FRANKS RD, SUITE 1, HUNTINGDON VALLEY, PA 190064214 (Tel: 2159478654)

📍
Updated Business Mailing Address July 08, 2007

Registered at 2901 FRANKS RD, SUITE 1, HUNTINGDON VALLEY, PA 190064214 (Tel: 2159478654)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as DIANE SIZER, PH.D.

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

Psychologist (License #PS008239L in PA)

🟢
Initial NPI Registration & Enumeration June 20, 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: 1265478259
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 20, 2006
Last Update: July 03, 2024
Sole Proprietor: No

Mailing Address

928 Jaymor Rd Ste B-150

Southampton, PA 189663853

Phone: 8567459579

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.