David D. Chi, M.D., F.a.c.s., a Medical Corp.
NPI 1154649796 · Surgical Oncology Physician · Thousand Oaks, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David D. Chi, M.D., F.a.c.s., a Medical Corp. is a Surgical Oncology Physician organization in Thousand Oaks, CA (NPI 1154649796).
Provider details
- NPI number
- 1154649796
- Entity type
- Organization
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- David Chi, Owner/President(805) 497-7785
- License
- G84570 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
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
- 2010-05-06
- Last updated
- 2011-07-20
Frequently asked questions
- What is David D. Chi, M.D., F.a.c.s., a Medical Corp.'s NPI number?
- David D. Chi, M.D., F.a.c.s., a Medical Corp.'s National Provider Identifier (NPI) is 1154649796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is David D. Chi, M.D., F.a.c.s., a Medical Corp.?
- David D. Chi, M.D., F.a.c.s., a Medical Corp. is classified in the NPPES registry as Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is David D. Chi, M.D., F.a.c.s., a Medical Corp. located?
- David D. Chi, M.D., F.a.c.s., a Medical Corp.'s practice location on file with NPPES is 555 Marin Street, Thousand Oaks, CA 91360-4105.
- What is David D. Chi, M.D., F.a.c.s., a Medical Corp.'s phone number?
- The practice phone number listed in the NPPES registry for David D. Chi, M.D., F.a.c.s., a Medical Corp. is (805) 497-7785.
- Does David D. Chi, M.D., F.a.c.s., a Medical Corp. accept Medicare?
- David D. Chi, M.D., F.a.c.s., a Medical Corp. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for David D. Chi, M.D., F.a.c.s., a Medical Corp.?
- The authorized official listed on David D. Chi, M.D., F.a.c.s., a Medical Corp.'s NPPES record is David Chi, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is David D. Chi, M.D., F.a.c.s., a Medical Corp.'s NPI active?
- Yes — David D. Chi, M.D., F.a.c.s., a Medical Corp.'s NPI (1154649796) is active in the NPPES registry as of the last update on 2011-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.