Regan Yau, MD
NPI 1114006244 · Internal Medicine Physician · Milpitas, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regan Yau, MD is a Internal Medicine Physician provider in Milpitas, CA (NPI 1114006244).
Provider details
- NPI number
- 1114006244
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A78987 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 580 | 197 |
| Amlodipine Besylate | 354 | 124 |
| Losartan Potassium | 303 | 104 |
| Lisinopril | 259 | 92 |
| Simvastatin | 199 | 66 |
| Fluticasone Propionate | 178 | 92 |
| Metformin Hclbrand: Metformin Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2021-12-09
Frequently asked questions
- What is Regan Yau's NPI number?
- Regan Yau's National Provider Identifier (NPI) is 1114006244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regan Yau's specialty?
- Regan Yau is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Regan Yau located?
- Regan Yau's practice location on file with NPPES is 770 E Calaveras Blvd, Milpitas, CA 95035-5491.
- What is Regan Yau's phone number?
- The practice phone number listed in the NPPES registry for Regan Yau is (650) 945-2900.
- Does Regan Yau accept Medicare?
- Regan Yau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regan Yau's NPI active?
- Yes — Regan Yau's NPI (1114006244) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.