IndividualActive
Mark Oyama, M.D.
NPI 1669689220 · Specialist · Santa Monica, CA
Mark Oyama, M.D. is a Specialist provider in Santa Monica, CA (NPI 1669689220).
Provider details
- NPI number
- 1669689220
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G61877 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(89/100 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
1260 15th St
Suite 802
Santa Monica, CA 90404-1135
Phone: (310) 393-6388
Fax: (310) 393-3097
Street-level locationGet directions
Mailing address
1260 15th St
Santa Monica, CA 90404-1135
Registry dates
- Enumerated
- 2007-05-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Oyama's NPI number?
- Mark Oyama's National Provider Identifier (NPI) is 1669689220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Oyama's specialty?
- Mark Oyama is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Oyama located?
- Mark Oyama's practice location on file with NPPES is 1260 15th St, Santa Monica, CA 90404-1135.
- What is Mark Oyama's phone number?
- The practice phone number listed in the NPPES registry for Mark Oyama is (310) 393-6388.
- Is Mark Oyama's NPI active?
- Yes — Mark Oyama's NPI (1669689220) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.