DR. DENIS BOLTON (D.O.) – Diagnostic Radiology Physician, NPI 1952493876
Diagnostic Radiology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,800 DIAGNOSTIC RADIOLOGY in CA
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Provider Addresses for DR. DENIS BOLTON (D.O.)
Calle Pasadena, Asociación California, Sector 12, Villa El Salvador, Province of Lima, Lima Metropolitan Area, Lima, 15829, Peru
PASADENA, CA 911851758
Phone: (949) 263-8620
Fax: (949) 263-1639
Type: Mailing
Los Alamitos Medical Center, 3751, Katella Avenue, Los Alamitos, Orange County, California, 90720, United States
LOS ALAMITOS, CA 907203101
Phone: (714) 826-6400
Fax: (562) 799-3121
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: 2004-07-01
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 |
|---|---|---|---|---|
| I20040701001132 | I | Diagnostic Radiology | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 670 | 540 | $0 |
| 77067 | Screening mammography | 410 | 410 | $0 |
| 77063 | Screening 3d breast mammography | 391 | 391 | $0 |
| 77080 | Dxa bone density measurement of hip, pelvis, spine | 333 | 333 | $0 |
| 76882 | Limited ultrasound scan of joint or other extremity structure except blood vessels | 280 | 170 | $0 |
Insurance plans in this area (ZIP 91185)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 71250 | CT scan chest | 40 | 40 |
| DIAGNOSTIC RADIOLOGY | CA | 73110 | X-ray of wrist, minimum of 3 views | 13 | 12 |
| DIAGNOSTIC RADIOLOGY | CA | 73562 | X-ray of knee, 3 views | 21 | 18 |
| DIAGNOSTIC RADIOLOGY | CA | 73630 | X-ray of foot, minimum of 3 views | 30 | 28 |
| DIAGNOSTIC RADIOLOGY | CA | 74177 | CT scan of abdomen and pelvis with contrast | 102 | 96 |
| DIAGNOSTIC RADIOLOGY | CA | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 17 | 17 |
| DIAGNOSTIC RADIOLOGY | CA | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 74 | 74 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Interventional Radiology, Pulmonary Disease | NY | |
| Diagnostic Radiology | CA | |
| Interventional Radiology, Diagnostic Radiology, Diagnostic Radiology | GA | |
| Diagnostic Radiology | VA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA |
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