IndividualActive
Stephen Simpson, MD
NPI 1801278148 · Psychologist · Pasadena, CA
Stephen Simpson, MD is a Psychologist provider in Pasadena, CA (NPI 1801278148).
Provider details
- NPI number
- 1801278148
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY17653 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(73/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
751 N Fair Oaks Ave
3rd Floor
Pasadena, CA 91103-3069
Phone: (213) 718-0256
Fax: (818) 301-7443
Street-level locationGet directions
Mailing address
751 N Fair Oaks Ave
Pasadena, CA 91103-3069
Registry dates
- Enumerated
- 2015-06-23
- Last updated
- 2015-06-23
Frequently asked questions
- What is Stephen Simpson's NPI number?
- Stephen Simpson's National Provider Identifier (NPI) is 1801278148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Simpson's specialty?
- Stephen Simpson is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Stephen Simpson located?
- Stephen Simpson's practice location on file with NPPES is 751 N Fair Oaks Ave, Pasadena, CA 91103-3069.
- What is Stephen Simpson's phone number?
- The practice phone number listed in the NPPES registry for Stephen Simpson is (213) 718-0256.
- Is Stephen Simpson's NPI active?
- Yes — Stephen Simpson's NPI (1801278148) is active in the NPPES registry as of the last update on 2015-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.