IndividualActive
Mark Rierson, LAC
NPI 1376040923 · Specialist · San Diego, CA
Mark Rierson, LAC is a Specialist provider in San Diego, CA (NPI 1376040923).
Provider details
- NPI number
- 1376040923
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- LAC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 9587 (CA)
Specialties & taxonomies
Other 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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
200 W Arbor Dr
San Diego, CA 92103-9000
Phone: (800) 926-8273
Fax: (888) 539-8781
Street-level locationGet directions
Mailing address
Po Box 232410
San Diego, CA 92193-2410
Additional practice locations (1)
- 2333 1st Ave Ste 106San Diego, CA 92101-1538Phone: (619) 786-8396Fax: (619) 924-4232
Registry dates
- Enumerated
- 2018-04-10
- Last updated
- 2023-03-30
- Certified
- 2023-03-30
Frequently asked questions
- What is Mark Rierson's NPI number?
- Mark Rierson's National Provider Identifier (NPI) is 1376040923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Rierson's specialty?
- Mark Rierson is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Rierson located?
- Mark Rierson's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Mark Rierson's phone number?
- The practice phone number listed in the NPPES registry for Mark Rierson is (800) 926-8273.
- Is Mark Rierson's NPI active?
- Yes — Mark Rierson's NPI (1376040923) is active in the NPPES registry as of the last update on 2023-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.