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Mcellen E Lawrence

Psychologist β€’ Cambridge, MA

Active NPI 1992530653 Individual Practitioner Female Practitioner
Practice location in NPPES

10 Concord Ave
Cambridge, MA 021382322

Call 6173074470 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

10 Concord Ave

Cambridge, MA 021382322

Telephone 6173074470
Organization at the Same NPPES Address or Phone
Pax Et Bonum Psychological Services, Llc Facility NPI 1851814917

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

NPI first issued

2024

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Compared with the same specialty in Cambridge and Massachusetts

182 active clinicians are listed under Psychologist with a practice address in Cambridge, MA (2,375 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Cambridge

7.7% of these 182 clinicians have the CMS telehealth indicator.

12.6% of these 182 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-01-06
Psychologist Primary Specialty

NUCC 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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Andrew Clark , MD

Psychiatry & Neurology - Psychiatry

NPI 1720056047

Doctor of Medicine (M.D.)

Catherine Sullivan

Psychiatry & Neurology - Psychiatry

NPI 1427375104

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Business Mailing Address January 06, 2026

Registered at 899 OLD MAIN STREET EXT, MARSHFIELD, MA 020502006

πŸ“
Updated Practice Location October 07, 2025

Registered at 10 CONCORD AVE, CAMBRIDGE, MA 021382322 (Tel: 6173074470)

πŸ“
Updated Business Mailing Address October 07, 2025

Registered at 6 CLINTON ST, NEWTON, MA 024581212

βœ…
NPI Profile Active September 03, 2024

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) September 03, 2024

Registered at 253 N SAN GABRIEL BLVD # 100, PASADENA, CA 911073429 (Tel: 6265778480)

πŸ“
Business Mailing Address (Initial Record) September 03, 2024

Registered at 253 N SAN GABRIEL BLVD # 100, PASADENA, CA 911073429

πŸ‘€
Provider Name / Credentials (Initial Record) September 03, 2024

Recorded as MCELLEN LAWRENCE

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 03, 2024

Psychologist

🟒
Initial NPI Registration & Enumeration September 03, 2024

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1992530653
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 03, 2024
Last Update: January 06, 2026
Sole Proprietor: No

Other Psychologists in Cambridge

Healthcare providers in Cambridge

Mailing Address

899 Old Main Street Ext

Marshfield, MA 020502006

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.