Walter Osias, M.D.
NPI 1841576097 · Diagnostic Radiology Physician · San Bernardino, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Osias, M.D. is a Diagnostic Radiology Physician provider in San Bernardino, CA (NPI 1841576097).
Provider details
- NPI number
- 1841576097
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,037 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) |
|---|---|---|
| Ct Scan of Abdomen and Pelvis Before and After Contrast74178 | 228 | $360 |
| Fluorodeoxyglucose F-18 Fdg, Diagnostic, Per Study Dose, Up to 45 MillicuriesA9552 | 215 | $357 |
| Ct Scan of Chest Before and After Contrast71270 | 203 | $149 |
| Mri Scan of Leg Joint Without Contrast73721 | 164 | $229 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 155 | $1,910 |
| Ct Scan of Chest With Contrast71260 | 148 | $128 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
Registry dates
- Enumerated
- 2011-11-01
- Last updated
- 2018-01-15
Frequently asked questions
- What is Walter Osias's NPI number?
- Walter Osias's National Provider Identifier (NPI) is 1841576097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Osias's specialty?
- Walter Osias is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Osias located?
- Walter Osias's practice location on file with NPPES is 399 E 21st St, San Bernardino, CA 92404-4815.
- What is Walter Osias's phone number?
- The practice phone number listed in the NPPES registry for Walter Osias is (909) 882-2266.
- Does Walter Osias accept Medicare?
- Walter Osias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Osias's NPI active?
- Yes — Walter Osias's NPI (1841576097) is active in the NPPES registry as of the last update on 2018-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.