Doctor profile · Federal record
Dr. David Duffy, PHD
Clinical Psychologist · La Mesa, CA
- NPI 1326244955
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8787 Center Dr
La Mesa, CA 919423034
(800) 257-8715
fax (800) 819-1655 - Mailing address
-
3364 6Th Ave Apt 114
San Diego, CA 921035711
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- California #PSY19177
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326244955. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
839
Distinct HCPCS
6
Medicare allowed
$89,512
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90834 |
Psychotherapy, 45 minutes | 314 | 80 | $103 | |
90832 |
Psychotherapy, 30 minutes | 282 | 85 | $77 | |
90791 |
Psychiatric diagnostic evaluation | 159 | 158 | $178 | |
90832 |
Psychotherapy, 30 minutes | 45 | 16 | $67 | |
90834 |
Psychotherapy, 45 minutes | 27 | 14 | $89 | |
90791 |
Psychiatric diagnostic evaluation | 12 | 12 | $152 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 168. This provider delivers 5.0× the peer median.Frequently asked questions
What is Dr. David Duffy's medical specialty?
Dr. David Duffy practices Clinical Psychologist in La Mesa, CA.
Where does Dr. David Duffy practice?
Dr. David Duffy practices at 8787 Center Dr, La Mesa, CA 919423034. Office phone: 8002578715.
What is Dr. David Duffy's NPI?
Dr. David Duffy's National Provider Identifier (NPI) is 1326244955, issued by NPPES.
Does Dr. David Duffy accept Medicare assignment?
Yes. Dr. David Duffy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Duffy commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychotherapy (HCPCS 90832); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.