IndividualActive
Mark Williamson, IDC
NPI 1699743534 · Independent Duty Corpsman · San Diego, CA
Mark Williamson, IDC is a Independent Duty Corpsman provider in San Diego, CA (NPI 1699743534).
Provider details
- NPI number
- 1699743534
- Entity type
- Individual
- Primary specialty
- Independent Duty CorpsmanOther Service Providers
- Credential
- IDC
- Sex
- Male
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
83% 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
3325 Senn Road
Comdesron One Building 55 Second Floor
San Diego, CA 92136
Phone: (619) 556-5002
Fax: (619) 556-5003
Approximate (ZIP-level) locationGet directions
Mailing address
Comdesron One 3325 Senn Road
San Diego, CA 92136
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Williamson's NPI number?
- Mark Williamson's National Provider Identifier (NPI) is 1699743534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Williamson's specialty?
- Mark Williamson is listed in the NPPES registry with a primary specialty of Independent Duty Corpsman (Other Service Providers).
- Where is Mark Williamson located?
- Mark Williamson's practice location on file with NPPES is 3325 Senn Road, San Diego, CA 92136.
- What is Mark Williamson's phone number?
- The practice phone number listed in the NPPES registry for Mark Williamson is (619) 556-5002.
- Is Mark Williamson's NPI active?
- Yes — Mark Williamson's NPI (1699743534) 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.