IndividualActive
Thomas Johansen, MD
NPI 1841275567 · Ophthalmology Physician · Mather, CA
Thomas Johansen, MD is a Ophthalmology Physician provider in Mather, CA (NPI 1841275567).
Provider details
- NPI number
- 1841275567
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- A70994 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
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
10535 Hospital Way
Sacramento Va Medical Center
Mather, CA 95655-4200
Phone: (916) 366-5463
Street-level locationGet directions
Mailing address
505 Cleveland Ct
Davis, CA 95616-3129
Registry dates
- Enumerated
- 2005-12-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Johansen's NPI number?
- Thomas Johansen's National Provider Identifier (NPI) is 1841275567, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Johansen's specialty?
- Thomas Johansen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Johansen located?
- Thomas Johansen's practice location on file with NPPES is 10535 Hospital Way, Mather, CA 95655-4200.
- What is Thomas Johansen's phone number?
- The practice phone number listed in the NPPES registry for Thomas Johansen is (916) 366-5463.
- Is Thomas Johansen's NPI active?
- Yes — Thomas Johansen's NPI (1841275567) 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.