DR. BRENDAN JOHN BOLAND (MD) – Surgical Oncology Physician, NPI 1790944783
Surgical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
Provider Addresses for DR. BRENDAN JOHN BOLAND (MD)
23823 Valencia Blvd Ste 250
Santa Clarita, CA 913559512
Phone: (661) 799-1999
Fax: (661) 799-0829
Type: Location
1500 Duarte Rd
Duarte, CA 910103012
Phone: (626) 256-4673
Type: Location
200, South Mayflower Avenue, Monrovia, Los Angeles County, California, 91016, United States
MONROVIA, CA 910165266
Phone: (626) 775-3514
Type: Mailing
15th Street West, Lancaster, Los Angeles County, California, 93534, United States
LANCASTER, CA 935344079
Phone: (661) 902-5600
Fax: (661) 951-0686
Type: Location
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: 2008-12-10
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 |
|---|---|---|---|---|
| I20081210000262 | I | General 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 83 | 16 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 91355)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hematology/Oncology, Internal Medicine | UT | |
| General Surgery | WA | |
| Hematology/Oncology, Internal Medicine | CA | |
| General Surgery | CA | |
| Internal Medicine, Hematology/Oncology | CA | |
| Anesthesiology, Critical Care (Intensivists) | CA | |
| - | CA | |
| General Surgery | CA |
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