DR. ROBERT MORRIS O'HOLLAREN (M.D.) – Adult Reconstructive Orthopaedic Surgery Physician, NPI 1801852710
Adult Reconstructive Orthopaedic Surgery Physician
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Profile Insights
NPPES metrics only — not quality of care.
3,024 ORTHOPEDIC SURGERY in CA
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Provider Addresses for DR. ROBERT MORRIS O'HOLLAREN (M.D.)
1203 FLYNN RD UNIT 160
CAMARILLO, CA 930126203
Phone: (805) 804-4168
Fax: (805) 830-1177
Type: Mailing
Loma Vista Road, Ventura, Ventura County, California, 93001, United States
VENTURA, CA 930033165
Phone: (805) 641-6415
Fax: (805) 641-6424
Type: Location
Ralston Street, Winchester Homes, Ventura, Ventura County, California, 93009, United States
VENTURA, CA 930037844
Phone: (805) 804-4168
Fax: (805) 830-1177
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-02-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100201000046 | I | Orthopedic Surgery | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J7328 | Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg | 10,920 | 16 | $0 |
| J0702 | Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | 148 | 61 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 145 | 95 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 126 | 74 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 115 | 61 | $0 |
Insurance plans in this area (ZIP 93012)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | CA | 73562 | X-ray of knee, 3 views | 24 | 20 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Physical Therapist In Private Practice | CA | |
| Occupational Therapist In Private Practice | CA | |
| - | CA | |
| Physical Therapist In Private Practice | CA | |
| Physical Therapist In Private Practice | CA | |
| - | CA | |
| Sports Medicine, Orthopedic Surgery | CA | |
| Physical Therapist In Private Practice | CA | |
| Physical Therapist In Private Practice | CA |
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