Oscar Ramirez, M.D.
NPI 1689831570 · Hospitalist Physician · Redlands, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oscar Ramirez, M.D. is a Hospitalist Physician provider in Redlands, CA (NPI 1689831570).
Provider details
- NPI number
- 1689831570
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A131409 (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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
260 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 121 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 60 | $114 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 57 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 22 | $173 |
Typical Medicare-allowed amounts for these services range $79–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefpodoxime Proxetil | 23 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 21 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | 18 |
| Azithromycin | 19 | 19 |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 19 | — |
| Prednisone | 17 | 15 |
| Cephalexin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-19
- Last updated
- 2026-01-06
- Certified
- 2026-01-06
Frequently asked questions
- What is Oscar Ramirez's NPI number?
- Oscar Ramirez's National Provider Identifier (NPI) is 1689831570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oscar Ramirez's specialty?
- Oscar Ramirez is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Oscar Ramirez located?
- Oscar Ramirez's practice location on file with NPPES is 2 W Fern Ave, Redlands, CA 92373.
- What is Oscar Ramirez's phone number?
- The practice phone number listed in the NPPES registry for Oscar Ramirez is (909) 793-3311.
- Does Oscar Ramirez accept Medicare?
- Oscar Ramirez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oscar Ramirez's NPI active?
- Yes — Oscar Ramirez's NPI (1689831570) is active in the NPPES registry as of the last update on 2026-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.