OrganizationActive
Ken C. Tan, M.D.
NPI 1982764361 · Anesthesiology Physician · Glendora, CA
Ken C. Tan, M.D. is a Anesthesiology Physician organization in Glendora, CA (NPI 1982764361).
Provider details
- NPI number
- 1982764361
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Alan Ryono, Office Manager(626) 964-6352
- License
- 12782 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
250 S Grand Ave
Glendora, CA 91741-4218
Phone: (626) 857-3140
Street-level locationGet directions
Mailing address
Po Box 4007
Diamond Bar, CA 91765-0007
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2007-10-01
Frequently asked questions
- What is Ken C. Tan, M.D.'s NPI number?
- Ken C. Tan, M.D.'s National Provider Identifier (NPI) is 1982764361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ken C. Tan, M.D.?
- Ken C. Tan, M.D. is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ken C. Tan, M.D. located?
- Ken C. Tan, M.D.'s practice location on file with NPPES is 250 S Grand Ave, Glendora, CA 91741-4218.
- What is Ken C. Tan, M.D.'s phone number?
- The practice phone number listed in the NPPES registry for Ken C. Tan, M.D. is (626) 857-3140.
- Who is the authorized official for Ken C. Tan, M.D.?
- The authorized official listed on Ken C. Tan, M.D.'s NPPES record is Alan Ryono, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ken C. Tan, M.D.'s NPI active?
- Yes — Ken C. Tan, M.D.'s NPI (1982764361) is active in the NPPES registry as of the last update on 2007-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.