Antonio Tan, M.D.
NPI 1134277569 · Internal Medicine Physician · Moreno Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Antonio Tan, M.D. is a Internal Medicine Physician provider in Moreno Valley, CA (NPI 1134277569).
Provider details
- NPI number
- 1134277569
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A45416 (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
19 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
3,361 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) |
|---|---|---|
| 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 | 370 | $17 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 342 | $51 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 326 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 325 | $132 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 305 | $77 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 150 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 759 | 195 |
| Losartan Potassium | 671 | 174 |
| Rosuvastatin Calcium | 574 | 147 |
| Omeprazole | 572 | 101 |
| Metformin Hcl | 517 | 138 |
| Levothyroxine Sodium | 455 | 89 |
| Atorvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,671 across 69 records (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
- 2007-01-08
- Last updated
- 2007-07-09
Frequently asked questions
- What is Antonio Tan's NPI number?
- Antonio Tan's National Provider Identifier (NPI) is 1134277569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Antonio Tan's specialty?
- Antonio Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Antonio Tan located?
- Antonio Tan's practice location on file with NPPES is 12980 Frederick St, Moreno Valley, CA 92553-5263.
- What is Antonio Tan's phone number?
- The practice phone number listed in the NPPES registry for Antonio Tan is (951) 485-2744.
- Does Antonio Tan accept Medicare?
- Antonio Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Antonio Tan's NPI active?
- Yes — Antonio Tan's NPI (1134277569) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.