What is Chung-Wei Chan's NPI number?

Chung-Wei Chan's National Provider Identifier (NPI) is 1972820793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Chung-Wei Chan's specialty?

Chung-Wei Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Chung-Wei Chan located?

Chung-Wei Chan's practice location on file with NPPES is 803 Eleventh Ave, Sunnyvale, CA 94089-4731.

What is Chung-Wei Chan's phone number?

The practice phone number listed in the NPPES registry for Chung-Wei Chan is (650) 227-1150.

Is Chung-Wei Chan's NPI active?

Yes — Chung-Wei Chan's NPI (1972820793) is active in the NPPES registry as of the last update on 2020-08-11.

IndividualActive

Chung-Wei Chan, M.D.

NPI 1972820793 · Internal Medicine Physician · Sunnyvale, CA

Chung-Wei Chan, M.D. is a Internal Medicine Physician provider in Sunnyvale, CA (NPI 1972820793).

Provider details

NPI number: 1972820793
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: A106546 (CA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense A106546 (CA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000XLicense A106546 (CA)
Student, Health Care

Profile Score

Detailed profile(88/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
16 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

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.

Practice location

803 Eleventh Ave

Sunnyvale, CA 94089-4731

Phone: (650) 227-1150

Street-level locationGet directions

More CA providers

Mailing address

1 Embarcadero Ctr Ste 19

San Francisco, CA 94111-3628

Additional practice locations (1)

751 S Bascom Ave
Dept of Medicine, 4th Fl
San Jose, CA 95128-2604
Phone: (408) 885-6305

Enumerated: 2010-05-04
Last updated: 2020-08-11
Certified: 2020-08-11

Frequently asked questions

What is Chung-Wei Chan's NPI number?: Chung-Wei Chan's National Provider Identifier (NPI) is 1972820793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Chung-Wei Chan's specialty?: Chung-Wei Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Chung-Wei Chan located?: Chung-Wei Chan's practice location on file with NPPES is 803 Eleventh Ave, Sunnyvale, CA 94089-4731.
What is Chung-Wei Chan's phone number?: The practice phone number listed in the NPPES registry for Chung-Wei Chan is (650) 227-1150.
Is Chung-Wei Chan's NPI active?: Yes — Chung-Wei Chan's NPI (1972820793) is active in the NPPES registry as of the last update on 2020-08-11.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.