Doctor profile · Federal record
Dr. Douglas Griswold, PHD.
Psychologist (CMS: Clinical Psychologist) · Plymouth, MA
- NPI 1881798114
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
363 Court St. Suite 1
Plymouth, MA 02360
(508) 746-8004
fax (508) 746-8099
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- January 15, 2016
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 103T00000X — NUCC code
- State license (1)
- Massachusetts #6365
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881798114. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
211
Distinct HCPCS
1
Medicare allowed
$28,771
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 211 | 20 | $136 |
In context: peer comparison
Among 3 peers in Plymouth Psychologist, average services per provider: 292. This provider delivers 0.7× the peer median.Frequently asked questions
What is Dr. Douglas Griswold's medical specialty?
Dr. Douglas Griswold practices Psychologist in Plymouth, MA.
Where does Dr. Douglas Griswold practice?
Dr. Douglas Griswold practices at 363 Court St. Suite 1, Plymouth, MA 02360. Office phone: 5087468004.
What is Dr. Douglas Griswold's NPI?
Dr. Douglas Griswold's National Provider Identifier (NPI) is 1881798114, issued by NPPES.
Does Dr. Douglas Griswold accept Medicare assignment?
Yes. Dr. Douglas Griswold accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Griswold commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.