Doctor profile · Federal record
Dr. Justin Marquis, PA
Physician Assistant · Occupational Medicine Physician · Medical Physician Assistant · Oceanside, CA
- NPI 1891729422
- Accepts Medicare
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 Mercy Circle
Oceanside, CA 920555191
(760) 725-1288 - Additional location
-
225 East Second Avenue
Escondido, CA 920254249
(760) 291-6700
fax (760) 737-7324 - Mailing address
-
Po Box 555191
Camp Pendleton, CA 920555191
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 31, 2025
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- California #PA16871 · California #16871
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891729422. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
40
Distinct HCPCS
1
Medicare allowed
$3,302
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 39 | $83 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 145. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
19
Patients
18
Total drug cost
$245
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Doxycycline Hyclate | Generic | 19 | 18 | $245 |
Frequently asked questions
What is Dr. Justin Marquis's medical specialty?
Dr. Justin Marquis practices Physician Assistant in Oceanside, CA.
Where does Dr. Justin Marquis practice?
Dr. Justin Marquis practices at 200 Mercy Circle, Oceanside, CA 920555191. Office phone: 7607251288.
What is Dr. Justin Marquis's NPI?
Dr. Justin Marquis's National Provider Identifier (NPI) is 1891729422, issued by NPPES.
Does Dr. Justin Marquis accept Medicare assignment?
Yes. Dr. Justin Marquis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Marquis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.