Doctor profile · Federal record
Dr. Ziad Chaya, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Fountain Valley, CA
- NPI 1528420510
- Accepts Medicare
- MIPS 75.3 / 100 · 2023
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
17360 Brookhurst St
Fountain Valley, CA 927083720
(657) 241-3592 - Additional location
-
4077 Fifth Ave # Mer35
San Diego, CA 921032105
(619) 686-3893 - Mailing address
-
17360 Brookhurst Street, Attn: Network Management
Fountain Valley, CA 927083720
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- July 15, 2019
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #20A16384
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528420510. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
711
Distinct HCPCS
5
Medicare allowed
$76,632
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 361 | 141 | $85 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 145 | 42 | $127 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 99 | 97 | $139 | |
99239 |
Hospital discharge day management, more than 30 minutes | 95 | 93 | $124 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $186 |
In context: peer comparison
Among 36 peers in Fountain Valley Internal Medicine Physician, average services per provider: 345. This provider delivers 2.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
97
Patients
92
Total drug cost
$890
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 24 | 22 | $86 |
| Furosemide | Generic | 18 | 17 | $82 |
| Pantoprazole Sodium | Generic | 16 | 15 | $101 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 15 | 15 | $213 |
| Amiodarone Hcl | Generic | 12 | 11 | $362 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 12 | 12 | $46 |
Frequently asked questions
What is Dr. Ziad Chaya's medical specialty?
Dr. Ziad Chaya practices Internal Medicine Physician in Fountain Valley, CA.
Where does Dr. Ziad Chaya practice?
Dr. Ziad Chaya practices at 17360 Brookhurst St, Fountain Valley, CA 927083720. Office phone: 6572413592.
What is Dr. Ziad Chaya's NPI?
Dr. Ziad Chaya's National Provider Identifier (NPI) is 1528420510, issued by NPPES.
Does Dr. Ziad Chaya accept Medicare assignment?
Yes. Dr. Ziad Chaya accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ziad Chaya commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.