Stephen J. Clark, M.D., Inc
NPI 1801938881 · Infectious Disease Physician · Arcata, CA
Stephen J. Clark, M.D., Inc is a Infectious Disease Physician organization in Arcata, CA (NPI 1801938881).
Provider details
- NPI number
- 1801938881
- Entity type
- Organization
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stephen Clark, President(707) 825-7765
- License
- G86858 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2008-02-18
Frequently asked questions
- What is Stephen J. Clark, M.D., Inc's NPI number?
- Stephen J. Clark, M.D., Inc's National Provider Identifier (NPI) is 1801938881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen J. Clark, M.D., Inc?
- Stephen J. Clark, M.D., Inc is classified in the NPPES registry as Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen J. Clark, M.D., Inc located?
- Stephen J. Clark, M.D., Inc's practice location on file with NPPES is 3798 Janes Rd, Arcata, CA 95521-4753.
- What is Stephen J. Clark, M.D., Inc's phone number?
- The practice phone number listed in the NPPES registry for Stephen J. Clark, M.D., Inc is (707) 825-7765.
- Who is the authorized official for Stephen J. Clark, M.D., Inc?
- The authorized official listed on Stephen J. Clark, M.D., Inc's NPPES record is Stephen Clark, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen J. Clark, M.D., Inc's NPI active?
- Yes — Stephen J. Clark, M.D., Inc's NPI (1801938881) is active in the NPPES registry as of the last update on 2008-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.