Doctor profile · Federal record
Dr. Michael Gass, PH.D.
Psychologist (CMS: Clinical Psychologist) · Mission Viejo, CA
- NPI 1700902285
- Accepts Medicare
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
27001 la Paz RD, Suite 290
Mission Viejo, CA 926915502
(949) 462-0102
fax (949) 462-0124
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- August 19, 2008
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 103T00000X — NUCC code
- State license (1)
- California ##PSY5201
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1700902285. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
629
Distinct HCPCS
2
Medicare allowed
$97,866
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 610 | 28 | $155 | |
90791 |
Psychiatric diagnostic evaluation | 19 | 18 | $185 |
In context: peer comparison
Among 2 peers in Mission Viejo Psychologist, average services per provider: 382. This provider delivers 1.6× the peer median.Frequently asked questions
What is Dr. Michael Gass's medical specialty?
Dr. Michael Gass practices Psychologist in Mission Viejo, CA.
Where does Dr. Michael Gass practice?
Dr. Michael Gass practices at 27001 la Paz RD, Mission Viejo, CA 926915502. Office phone: 9494620102.
What is Dr. Michael Gass's NPI?
Dr. Michael Gass's National Provider Identifier (NPI) is 1700902285, issued by NPPES.
Does Dr. Michael Gass accept Medicare assignment?
Yes. Dr. Michael Gass accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Gass commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.