Sandar Chen, MD
NPI 1255747069 · Internal Medicine Physician · El Monte, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandar Chen, MD is a Internal Medicine Physician provider in El Monte, CA (NPI 1255747069).
Provider details
- NPI number
- 1255747069
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
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 tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
67% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 140 | 47 |
| Gabapentin | 116 | 28 |
| Losartan Potassium | 115 | 33 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 107 | 27 |
| Amlodipine Besylate | 100 | 29 |
| Furosemide | 96 | 26 |
| Dulaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$239 across 14 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.
Mailing address
Additional practice locations (1)
- 1545 Atlantic AveBrooklyn, NY 11213-1122Phone: (718) 613-4000
Registry dates
- Enumerated
- 2014-07-01
- Last updated
- 2018-03-17
Frequently asked questions
- What is Sandar Chen's NPI number?
- Sandar Chen's National Provider Identifier (NPI) is 1255747069, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandar Chen's specialty?
- Sandar Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sandar Chen located?
- Sandar Chen's practice location on file with NPPES is 10418 Valley Blvd, El Monte, CA 91731-3600.
- Does Sandar Chen accept Medicare?
- Sandar Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandar Chen's NPI active?
- Yes — Sandar Chen's NPI (1255747069) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.