Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1871583047 Individual Practitioner Male Practitioner

Dr. Mark Alan Blais , PhD

Psychologist • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Blais, PhD is a certified Psychologist practicing in Boston, MA. With approximately 36 years of clinical experience since completing medical education in 1990, Dr. Blais delivers high-quality medical care to the local community at 55 FRUIT ST.

Dr. Blais is affiliated with Massachusetts General Physicians Organization Inc and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

55 Fruit St
Wrn 1227

Boston, MA 021142696

Telephone 6177249143
Fax 6177249150
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Boston, MA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
36 Yrs +20.9 yrs vs City Avg
City Avg: 15.1 Yrs
State Avg: 32.3 Yrs
Regional Practice Density
471 Specialists

Practicing in Boston, MA (2533 Statewide)

Telehealth Adoption Rate
20.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Blais (36 Years) 36 Yrs
Boston Specialty Average (15.1 Years) 15.1 Yrs

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License MA 6201

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
0522198 (MA)
Commercial Insurance / Payer ID Tufts Health Plan
723413 (MA)
Commercial Insurance / Payer ID Bcbs Ma
W05000 (MA)

Hospital & Practice Group Affiliations

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Massachusetts General Physicians Organization Inc

50 Staniford St, Boston, MA 021142517

Practice Associates & Co-Workers

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

1 Associated Practitioners
Jaya Asthana , MSW

Social Worker - Clinical

NPI 1831213016

Master of Social Work

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 55 FRUIT ST, WRN 1227, BOSTON, MA 021142696 (Tel: 6177249143)

📍
Updated Business Mailing Address July 08, 2007

Registered at PO BOX 9142, CHARLESTOWN, MA 021299142 (Tel: 6177240287)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as MARK BLAIS, PHD

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

Psychologist (License #6201 in MA)

🟢
Initial NPI Registration & Enumeration October 27, 2005

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: 1871583047
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 27, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

Po Box 9142

Charlestown, MA 021299142

Phone: 6177240287

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.