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Dr. Anna Hamilton , PhD

Psychologist β€’ Brookline, MA

Active NPI 1144887159 Individual Practitioner Female Practitioner
Practice location in NPPES

41 Garrison Rd
Brookline, MA 024454445

Call 6172778107 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

41 Garrison Rd

Brookline, MA 024454445

Telephone 6172778107
Organization at the Same NPPES Address or Phone
Brookline Community Mental Health Center Facility NPI 1427332261

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

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Madison, WI. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2024

Years since graduation

2 years (graduated 2024)

CMS Doctors and Clinicians data list 2024 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2019

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.

May accept Medicare assignment

CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.

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; 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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Hamilton has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Hamilton as eligible to order or refer Medicare Part B clinical laboratory and imaging services and durable medical equipment (DME) for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Brookline and Massachusetts

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

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

Telehealth indicator in Brookline

13.1% of these 99 clinicians have the CMS telehealth indicator.

18.2% of these 99 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, 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: 2026-01-14
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.

Psychologist - Counseling

NUCC Taxonomy Code: 103TC1900X

A psychologist who specializes in general practice and health service. It focuses on how people function both personally and in their relationships at all ages. Counseling psychology addresses the emotional, social, work, school and physical health concerns people may have at different stages in their lives, focusing on typical life stresses and more severe issues with which people may struggle as individuals and as a part of families, groups and organizations. Counseling psychologists help people with physical, emotional and mental health issues improve their sense of well-being, alleviate feelings of distress and resolve crises. They also provide assessment, diagnosis, and treatment of more severe psychological symptoms.

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

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
1144887159 (WI)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - CLINICAL PSYCHOLOGIST

Medicare Enrollment ID

I20260122001452

Enrollment State Jurisdiction

WI

PECOS Control ID

0941787832

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Not Eligible
Power Mobility Devices (PMD) Not Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Secondary Practice Locations

1821 S Stoughton Rd

Madison, WI 537162257

Phone: 6082606000

Clinicians Sharing This Practice Address or Phone

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

12 listed
Christopher Ahnallen

Psychologist - Clinical

NPI 1558429563
Christine Boie , CNS

Clinical Nurse Specialist - Psychiatric/Mental Health, Adult

NPI 1013281963

Clinical Nurse Specialist

Steven Carroll , PMHNP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1609415215

Psychiatric-Mental Health Nurse Practitioner

Anne Donnelly

Social Worker - Clinical

NPI 1194797043
Saneliso Masuku

Psychiatry & Neurology - Psychiatry

NPI 1508251984
Dr. Himal Mitra , MD

Psychiatry & Neurology - Psychiatry

NPI 1992778609

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

10 Historical Events
🏒
Secondary Practice Location Registered January 14, 2026

Additional practice office at 1821 S Stoughton Rd, Madison, WI 537162257

πŸ‘€
Provider Name / Credentials Updated January 14, 2026

Recorded as ANNA HAMILTON, PHD

πŸ“
Updated Practice Location January 25, 2020

Registered at 41 GARRISON RD, BROOKLINE, MA 024454445 (Tel: 6172778107)

πŸ“
Updated Business Mailing Address January 25, 2020

Registered at 41 GARRISON RD, BROOKLINE, MA 024454445

βœ…
NPI Profile Active May 24, 2019

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) May 24, 2019

Registered at 199 WINTHROP RD APT 33, BROOKLINE, MA 024454412 (Tel: 9198052164)

πŸ“
Business Mailing Address (Initial Record) May 24, 2019

Registered at 199 WINTHROP RD APT 33, BROOKLINE, MA 024454412

πŸ‘€
Provider Name / Credentials (Initial Record) May 24, 2019

Recorded as ANNA HAMILTON

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 24, 2019

Psychologist

🟒
Initial NPI Registration & Enumeration May 24, 2019

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1144887159
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 24, 2019
Last Update: January 14, 2026
Sole Proprietor: No

Other Psychologists in Brookline

All Psychologists in Brookline

Mailing Address

41 Garrison Rd

Brookline, MA 024454445

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.