Doctor profile · Federal record
Dr. Robert O'Hollaren, M.D.
Adult Reconstructive Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Ventura, CA
- NPI 1801852710
- Accepts Medicare
- 49 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3525 Loma Vista RD Ste A
Ventura, CA 930033165
(805) 641-6415
fax (805) 641-6424 - Mailing address
-
1203 Flynn RD Unit 160
Camarillo, CA 930126203
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- July 14, 2025
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207XS0114X — NUCC code
- State license (1)
- California #G39131
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801852710. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
11,572
Distinct HCPCS
10
Medicare allowed
$59,033
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J7328 |
Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg | 10,920 | 16 | $1 | |
J0702 |
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | 148 | 61 | $7 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 145 | 95 | $140 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 126 | 74 | $99 | |
20610 |
Aspiration and/or injection of fluid from large joint | 115 | 61 | $79 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $122 | |
73030 |
X-ray of shoulder, minimum of 2 views | 28 | 26 | $40 | |
73564 |
X-ray of knee, 4 or more views | 26 | 20 | $55 | |
72100 |
X-ray of lower and sacral spine, 2-3 views | 18 | 17 | $47 | |
73502 |
X-ray of hip, 2-3 views | 15 | 15 | $55 |
In context: peer comparison
Among 1 peers in Ventura Adult Reconstructive Orthopaedic Surgery Physician, average services per provider: 1,157. This provider delivers 10× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
124
Patients
53
Total drug cost
$808
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 89 | 31 | $324 |
| Methylprednisolone | Generic | 22 | 22 | $269 |
| Celecoxib | Generic | 13 | 0 | $215 |
Frequently asked questions
What is Dr. Robert O'Hollaren's medical specialty?
Dr. Robert O'Hollaren practices Adult Reconstructive Orthopaedic Surgery Physician in Ventura, CA.
Where does Dr. Robert O'Hollaren practice?
Dr. Robert O'Hollaren practices at 3525 Loma Vista RD Ste A, Ventura, CA 930033165. Office phone: 8056416415.
What is Dr. Robert O'Hollaren's NPI?
Dr. Robert O'Hollaren's National Provider Identifier (NPI) is 1801852710, issued by NPPES.
Does Dr. Robert O'Hollaren accept Medicare assignment?
Yes. Dr. Robert O'Hollaren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert O'Hollaren commonly perform?
Top Medicare-reported procedures in 2023: Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg (HCPCS J7328); Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (HCPCS J0702); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.