Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1972620136 Individual Practitioner Female Practitioner

Dr. Holly Lem , PhD

Psychologist • Cambridge, MA

Professional Overview & Biography Verified Profile Summary

Dr. Holly Lem, PhD is a registered healthcare professional specializing in Psychologist in Cambridge, MA. Practice services are available at 1493 CAMBRIDGE ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1493 Cambridge St

Cambridge, MA 021391047

Telephone 6175755342
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Cambridge, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 28.7 Yrs
State Avg: 32.3 Yrs
Regional Practice Density
197 Specialists

Practicing in Cambridge, MA (2533 Statewide)

Telehealth Adoption Rate
8.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License MA 8623

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.

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Zachary Oliff , DO

Emergency Medicine

NPI 1003300492

Doctor of Osteopathic Medicine (D.O.)

Jacob Wolfe , LICSW

Social Worker - Clinical

NPI 1003315938

Licensed Independent Clinical Social Worker

Sarah-Jo Santilli , RN

Registered Nurse

NPI 1003380239

Registered Nurse

Julie Mercer

Registered Nurse

NPI 1003386731
Taiana Katsaras , LICSW

Social Worker - Clinical

NPI 1003461765

Licensed Independent Clinical Social Worker

Angela De Silva

Registered Nurse - Ambulatory Care

NPI 1003522863

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 1493 CAMBRIDGE ST, CAMBRIDGE, MA 021391047 (Tel: 6175755342)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1493 CAMBRIDGE ST, CAMBRIDGE, MA 021391047 (Tel: 6175755342)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as HOLLY LEM, PH.D

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

Psychologist (License #8623 in MA)

🟢
Initial NPI Registration & Enumeration March 23, 2007

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: 1972620136
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 23, 2007
Last Update: July 08, 2007
Sole Proprietor: No

Mailing Address

1493 Cambridge St

Cambridge, MA 021391047

Phone: 6175755342

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.