Doctor profile · Federal record

Dr. Steven Chapin, PH.D.

Clinical Psychologist · Clinical Child & Adolescent Psychologist · Littleton, MA

  • NPI 1699841452
  • Accepts Medicare
  • 37 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 Meetinghouse RD Unit 1
Littleton, MA 014601912
(978) 486-0009
fax (978) 486-5412
Mailing address
Po Box 1363
Littleton, MA 014604363

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
October 18, 2023
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
103TC0700X — NUCC code
State license (1)
Massachusetts #4984
Medicaid (2)
MA #110031896A · MA #1855298

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699841452. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
241
Distinct HCPCS
1
Medicare allowed
$25,429
HCPCS Description Services Patients Avg allowed
90834 Psychotherapy, 45 minutes 241 14 $106

In context: peer comparison

Among 1 peers in this city , average services per provider: 241. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Steven Chapin's medical specialty?
Dr. Steven Chapin practices Clinical Psychologist in Littleton, MA.
Where does Dr. Steven Chapin practice?
Dr. Steven Chapin practices at 20 Meetinghouse RD Unit 1, Littleton, MA 014601912. Office phone: 9784860009.
What is Dr. Steven Chapin's NPI?
Dr. Steven Chapin's National Provider Identifier (NPI) is 1699841452, issued by NPPES.
Does Dr. Steven Chapin accept Medicare assignment?
Yes. Dr. Steven Chapin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Chapin commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834). Source: CMS Medicare Physician & Other Practitioners file.