Doctor profile · Federal record
Dr. John Allen, PH.D.
Clinical Psychologist · Psychologist · East Sandwich, MA
- NPI 1124001730
- Accepts Medicare
- 34 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
311 Service RD
East Sandwich, MA 025371370
(508) 833-4148 - Additional location
-
55 Fruit St
Boston, MA 021142696
(617) 952-6220 - Mailing address
-
Po Box 1114
Lakeville, MA 023471114
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- December 5, 2022
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- Massachusetts #7061
- Medicaid
- MA #110023995B
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124001730. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,231
Distinct HCPCS
5
Medicare allowed
$109,594
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90791 |
Psychiatric diagnostic evaluation | 460 | 446 | $152 | |
90853 |
Group psychotherapy | 342 | 131 | $24 | |
90832 |
Psychotherapy, 30 minutes | 312 | 217 | $67 | |
90834 |
Psychotherapy, 45 minutes | 68 | 20 | $89 | |
90847 |
Family psychotherapy with patient, 50 minutes | 49 | 30 | $100 |
In context: peer comparison
Among 1 peers in East Sandwich Clinical Psychologist, average services per provider: 246. This provider delivers 5.0× the peer median.Frequently asked questions
What is Dr. John Allen's medical specialty?
Dr. John Allen practices Clinical Psychologist in East Sandwich, MA.
Where does Dr. John Allen practice?
Dr. John Allen practices at 311 Service RD, East Sandwich, MA 025371370. Office phone: 5088334148.
What is Dr. John Allen's NPI?
Dr. John Allen's National Provider Identifier (NPI) is 1124001730, issued by NPPES.
Does Dr. John Allen accept Medicare assignment?
Yes. Dr. John Allen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Allen commonly perform?
Top Medicare-reported procedures in 2023: Psychiatric diagnostic evaluation (HCPCS 90791); Group psychotherapy (HCPCS 90853); Psychotherapy (HCPCS 90832). Source: CMS Medicare Physician & Other Practitioners file.