Steven Davis, M.D.
NPI 1558463653 · Radiation Oncology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Davis, M.D. is a Radiation Oncology Physician provider in Orange, CA (NPI 1558463653).
Provider details
- NPI number
- 1558463653
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A82145 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,549 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Complex Proton Beam Radiation Treatment77525 | 655 | $1,295 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 546 | $134 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 387 | $85 |
| Intermediate Proton Beam Radiation Treatment77523 | 278 | $1,147 |
| Tissue Marker, Implantable, Any Type, EachA4648 | 189 | $80 |
| Continuing Radiation Therapy Consultation Per Week77336 | 163 | $102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ciprofloxacin Hcl | 81 | 80 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 73 | 73 |
| Diazepam | 53 | 53 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$42 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 9730 Summers Ridge RdSan Diego, CA 92121-3101Phone: (858) 549-7400
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2022-11-09
- Certified
- 2022-11-09
Frequently asked questions
- What is Steven Davis's NPI number?
- Steven Davis's National Provider Identifier (NPI) is 1558463653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Davis's specialty?
- Steven Davis is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Davis located?
- Steven Davis's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Steven Davis's phone number?
- The practice phone number listed in the NPPES registry for Steven Davis is (714) 880-7812.
- Does Steven Davis accept Medicare?
- Steven Davis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Davis's NPI active?
- Yes — Steven Davis's NPI (1558463653) is active in the NPPES registry as of the last update on 2022-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.