Mark Stein, M.D.
NPI 1346644887 · Diagnostic Radiology Physician · Santa Monica, CA
Mark Stein, M.D. is a Diagnostic Radiology Physician provider in Santa Monica, CA (NPI 1346644887).
Provider details
- NPI number
- 1346644887
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A23799 (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
11 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
- 2014-10-13
- Last updated
- 2014-10-13
Frequently asked questions
- What is Mark Stein's NPI number?
- Mark Stein's National Provider Identifier (NPI) is 1346644887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stein's specialty?
- Mark Stein is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stein located?
- Mark Stein's practice location on file with NPPES is 1414 Wilshire Blvd, Santa Monica, CA 90403.
- What is Mark Stein's phone number?
- The practice phone number listed in the NPPES registry for Mark Stein is (310) 828-9640.
- Is Mark Stein's NPI active?
- Yes — Mark Stein's NPI (1346644887) is active in the NPPES registry as of the last update on 2014-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.