Quick answers
- Where does Diem Q. Pham see patients?
- Medicare's clinician data lists 1 practice location in Chino Hills, CA. Call before your visit to confirm the address.
- What is Diem Q. Pham's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Diem Q. Pham accept Medicare assignment?
- Yes. Medicare's clinician data says Diem Q. Pham accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Diem Q. Pham?
- (909) 313-5111, as listed in official Medicare / NPI Registry data.
- What is Diem Q. Pham's NPI number?
- 1255421335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Diem Q. Pham is enrolled with Medicare (CMS data updated 2026-10-02).
- 3110 Chino Ave, Suite 120Chino Hills, CA 91709 (909) 313‑5111
Group practices
Medicare enrollment lists Diem Q. Pham as a member of this group (CMS data updated 2026-10-02).
- Sand Dermatology PC6 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | College Of Osteo Med Of The Pacific At Pomona |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255421335 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians