Search › California › 207RH0003X
Mark Chang, DO
NPI 1861954182 · on the registry since 2019 · sole proprietor
Practice
- Address
- 1100 San Bernardino Rd Ste 1100
Upland, CA 91786 - Phone
- (909) 949-2242
- Fax
- (909) 981-5783
- Clinicians at this address
- 29
Registry record
- Primary taxonomy
- 207RH0003X
207RH0003X
- Also registered as
- 207R00000X
207RX0202X - Licence states on file
- NV, CA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-07-08
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California