Doctor profile · Federal record

Dr. Glenn Fagen, PHD

Psychologist (CMS: Clinical Psychologist) · Northampton, MA

  • NPI 1932134947
  • Accepts Medicare
  • 33 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 King Street, Suite 303
Northampton, MA 01060
(413) 584-8339
fax (413) 584-8807

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1993 — 33 yrs since
Specialty taxonomy
103T00000X — NUCC code
State license (1)
Massachusetts #6793
Medicaid
MA #0524484

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932134947. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
336
Distinct HCPCS
2
Medicare allowed
$36,556
HCPCS Description Services Patients Avg allowed
90834 Psychotherapy, 45 minutes 300 16 $101
90791 Psychiatric diagnostic evaluation 36 35 $177

In context: peer comparison

Among 1 peers in Northampton Psychologist, average services per provider: 168. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Glenn Fagen's medical specialty?
Dr. Glenn Fagen practices Psychologist in Northampton, MA.
Where does Dr. Glenn Fagen practice?
Dr. Glenn Fagen practices at 100 King Street, Northampton, MA 01060. Office phone: 4135848339.
What is Dr. Glenn Fagen's NPI?
Dr. Glenn Fagen's National Provider Identifier (NPI) is 1932134947, issued by NPPES.
Does Dr. Glenn Fagen accept Medicare assignment?
Yes. Dr. Glenn Fagen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Glenn Fagen commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.