Charmaine Ortizo, M.D.
NPI 1689051120 · Internal Medicine Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charmaine Ortizo, M.D. is a Internal Medicine Physician provider in Loma Linda, CA (NPI 1689051120).
Provider details
- NPI number
- 1689051120
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A147836 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 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
513 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 220 | $131 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 127 | $118 |
| Administration of Influenza Virus VaccineG0008 | 44 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $94 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 30 | $17 |
| Hospital Discharge Day Management, More Than 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 170 | 77 |
| Levothyroxine Sodium | 146 | 54 |
| Amlodipine Besylate | 134 | 53 |
| Losartan Potassium | 133 | 53 |
| Omeprazole | 114 | 41 |
| Lisinopril | 105 | 37 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-05
- Last updated
- 2026-01-27
- Certified
- 2026-01-27
Frequently asked questions
- What is Charmaine Ortizo's NPI number?
- Charmaine Ortizo's National Provider Identifier (NPI) is 1689051120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charmaine Ortizo's specialty?
- Charmaine Ortizo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charmaine Ortizo located?
- Charmaine Ortizo's practice location on file with NPPES is 11234 Anderson Street, Loma Linda, CA 92354.
- What is Charmaine Ortizo's phone number?
- The practice phone number listed in the NPPES registry for Charmaine Ortizo is (909) 558-4074.
- Does Charmaine Ortizo accept Medicare?
- Charmaine Ortizo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charmaine Ortizo's NPI active?
- Yes — Charmaine Ortizo's NPI (1689051120) is active in the NPPES registry as of the last update on 2026-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.