Regina Chau
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 20103 Lake Chabot Road, Castro Valley, CA 94546
- Practice phone
- Call (510) 537-1234
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Regina Chau's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Regina Chau is a physician assistant in Castro Valley, California
Regina Chau practices at Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health.
Regina Chau's NPI, 1245943257, was assigned on January 4, 2023.
- NPI
- 1245943257NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547743700
- NPI enumeration date
- January 4, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 537-1234
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Regina Chau practices at Sutter Eden Medical Center in Castro Valley, California
Regina Chau's primary practice is Sutter Eden Medical Center, at 20103 Lake Chabot Road, Castro Valley, CA 94546 in Alameda County. The practice phone is (510) 537-1234.
- Sutter Eden Medical Center20103 Lake Chabot Road, Castro Valley, CA 94546 · Alameda CountyPhone(510) 537-1234
Source: Dmand AI Affiliation Data
Regina Chau is affiliated with 2 sites of care and 1 medical group
Regina Chau's primary practice is Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health. The medical group on file is Eden Emergency Medical Group. Dmand AI also links Regina Chau to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Regina Chau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Regina Chau practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Eden Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Regina Chau is one of 11,482 physician assistants in California
Physician assistant is Regina Chau's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Regina Chau
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Regina Chau's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Regina Chau's median patient age at 41, with 56% women.
Regina Chau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women56%
- Men42%
Source: Dmand AI Patient Panel Data
How Regina Chau takes part in Medicare
Regina Chau accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Regina Chau's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Regina Chau
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Regina Chau's NPI number?
Regina Chau's NPI number is 1245943257. It was assigned on January 4, 2023, and it is active in the NPI Registry.
What does Regina Chau specialize in?
Regina Chau is a physician assistant in Castro Valley, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Regina Chau practice?
Regina Chau practices at 20103 Lake Chabot Road, Castro Valley, CA 94546. Regina Chau's primary practice is Sutter Eden Medical Center in Castro Valley, California, part of Sutter Health. Dmand AI also links Regina Chau to 1 group practice or clinic.
What is Regina Chau's office phone number?
The practice phone on file for Regina Chau is (510) 537-1234.
Which hospitals is Regina Chau affiliated with?
Regina Chau practices at Sutter Eden Medical Center in Castro Valley, California.
What medical group is Regina Chau part of?
Regina Chau is linked to Eden Emergency Medical Group.
Does Regina Chau accept Medicare?
Yes. CMS lists Regina Chau as accepting Medicare assignment.
How long has Regina Chau been practicing?
Regina Chau graduated from medical school in 2025, 1 years ago.
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