Quick answers
- Does Rito Castanon-Hill accept Medicare assignment?
- Yes. Medicare's clinician data says Rito Castanon-Hill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Rito Castanon-Hill see?
- In 2024, CMS data shows 242 Original Medicare patients and 585 services for Rito Castanon-Hill. This counts Original Medicare only and measures volume, not quality.
- What is Rito Castanon-Hill's NPI number?
- 1740397215. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Rito Castanon-Hill, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 242 |
|---|---|
| Services billed to Medicare | 585 |
| Different services or procedures | 47 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)125 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)69 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)52 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)34 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol60%
- High blood pressure59%
- Arthritis46%
- Ischemic heart disease29%
- Anxiety25%
- Depression22%
Practice locations
Addresses where Rito Castanon-Hill is enrolled with Medicare (CMS data updated October 2, 2026).
- 5311 W Centinela AveLos Angeles, CA 90045 (424) 317‑7972
- 6430 Selma AveLos Angeles, CA 90028 (323) 848‑4522
Group practices
Medicare enrollment lists Rito Castanon-Hill as a member of this group (CMS data updated October 2, 2026).
- Brown-Hill Medical Group Inc3 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740397215 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians