Wing Chin, M.D.
NPI 1730257338 · Internal Medicine Physician · Castro Valley, CA
Wing Chin, M.D. is a Internal Medicine Physician organization in Castro Valley, CA (NPI 1730257338).
Provider details
- NPI number
- 1730257338
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Wing Chin, M.D.(510) 886-2311
- License
- C28239 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2007-10-24
Frequently asked questions
- What is Wing Chin, M.D.'s NPI number?
- Wing Chin, M.D.'s National Provider Identifier (NPI) is 1730257338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Wing Chin, M.D.?
- Wing Chin, M.D. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wing Chin, M.D. located?
- Wing Chin, M.D.'s practice location on file with NPPES is 20055 Lake Chabot Rd, Castro Valley, CA 94546-5331.
- What is Wing Chin, M.D.'s phone number?
- The practice phone number listed in the NPPES registry for Wing Chin, M.D. is (510) 886-2311.
- Who is the authorized official for Wing Chin, M.D.?
- The authorized official listed on Wing Chin, M.D.'s NPPES record is Wing Chin, M.D.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Wing Chin, M.D.'s NPI active?
- Yes — Wing Chin, M.D.'s NPI (1730257338) is active in the NPPES registry as of the last update on 2007-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.