Doctor profile · Federal record
Dr. Zachary Zwolak, D.O.
Addiction Medicine (Family Medicine) Physician (CMS: Addiction Medicine) · Addiction Medicine (Preventive Medicine) Physician · Ventura, CA
- NPI 1265695571
- Accepts Medicare
- MIPS 82.2 / 100 · 2023
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
300 Hillmont Ave
Ventura, CA 930031651
(805) 652-6100
fax (805) 652-3252 - Additional location
-
1280 S Victoria Avenue #250
Ventura, CA 930036521
(805) 351-0745
fax (805) 288-6744 - Mailing address
-
800 S Victoria Ave, L4615, Vchca - Physician Services
Ventura, CA 930090003
Credentials & registration
- NPI registered
- July 2008 — 18 yrs on file
- Profile last updated
- August 8, 2024
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207QA0401X — NUCC code
- State license (1)
- California #20A12298
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265695571. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
221
Distinct HCPCS
7
Medicare allowed
$24,407
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99238 |
Hospital discharge day management, 30 minutes or less | 43 | 43 | $86 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 40 | 27 | $83 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 40 | 27 | $125 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 31 | 31 | $182 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 17 | $139 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 24 | 23 | $98 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 18 | 11 | $52 |
In context: peer comparison
Among 3 peers in Ventura Addiction Medicine (Family Medicine) Physician, average services per provider: 28. This provider delivers 7.9× the peer median.Open Payments
Industry payments received
All-time total
$201
Transactions
9
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Indivior INC. | 4 | $86.77 | |
| Alkermes, INC. | 2 | $43.92 | |
| Hikma Pharmaceuticals USA | 1 | $24.78 | |
| Gilead Sciences, INC. | 1 | $23.35 | |
| Abbvie INC. | 1 | $22.01 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
188
Patients
11
Total drug cost
$14,061
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 38 | 11 | $409 |
| Lisinopril | Generic | 26 | 0 | $250 |
| Advair Diskus (Fluticasone Propion/Salmeterol) | Brand | 19 | 0 | $10,728 |
| Ibuprofen | Generic | 18 | 0 | $193 |
| Metformin Hcl | Generic | 18 | 0 | $99 |
| Rosuvastatin Calcium | Generic | 17 | 0 | $1,050 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 14 | 0 | $550 |
| Duloxetine Hcl | Generic | 13 | 0 | $217 |
| Pregabalin | Generic | 13 | 0 | $84 |
| Diclofenac Sodium | Generic | 12 | 0 | $481 |
Frequently asked questions
What is Dr. Zachary Zwolak's medical specialty?
Dr. Zachary Zwolak practices Addiction Medicine (Family Medicine) Physician in Ventura, CA.
Where does Dr. Zachary Zwolak practice?
Dr. Zachary Zwolak practices at 300 Hillmont Ave, Ventura, CA 930031651. Office phone: 8056526100.
What is Dr. Zachary Zwolak's NPI?
Dr. Zachary Zwolak's National Provider Identifier (NPI) is 1265695571, issued by NPPES.
Does Dr. Zachary Zwolak accept Medicare assignment?
Yes. Dr. Zachary Zwolak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zachary Zwolak commonly perform?
Top Medicare-reported procedures in 2023: Hospital discharge day management (HCPCS 99238); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.