Drew Tadiarca, M.D.
NPI 1275893810 · Internal Medicine Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Drew Tadiarca, M.D. is a Internal Medicine Physician provider in Loma Linda, CA (NPI 1275893810).
Provider details
- NPI number
- 1275893810
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A130516 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
216 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 66 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 44 | $118 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 28 | $132 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 25 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $94 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
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 |
|---|---|---|
| Atorvastatin Calcium | 65 | 29 |
| Amlodipine Besylate | 37 | 17 |
| Metformin Hcl | 32 | 13 |
| Pantoprazole Sodium | 25 | — |
| Lisinopril | 24 | 11 |
| Tamsulosin Hcl | 23 | — |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 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
- 2012-05-16
- Last updated
- 2016-08-03
Frequently asked questions
- What is Drew Tadiarca's NPI number?
- Drew Tadiarca's National Provider Identifier (NPI) is 1275893810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Drew Tadiarca's specialty?
- Drew Tadiarca is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Drew Tadiarca located?
- Drew Tadiarca's practice location on file with NPPES is 11234 Anderson St, Loma Linda, CA 92354-2804.
- What is Drew Tadiarca's phone number?
- The practice phone number listed in the NPPES registry for Drew Tadiarca is (909) 558-4000.
- Does Drew Tadiarca accept Medicare?
- Drew Tadiarca is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Drew Tadiarca's NPI active?
- Yes — Drew Tadiarca's NPI (1275893810) is active in the NPPES registry as of the last update on 2016-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.