IndividualActive
Karen Johnston, MD
NPI 1376781906 · Psychiatry Physician · Tucson, AZ
Karen Johnston, MD is a Psychiatry Physician provider in Tucson, AZ (NPI 1376781906).
Provider details
- NPI number
- 1376781906
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 22690 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(86/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
6420 E Broadway Blvd
Suite B302
Tucson, AZ 85710-3534
Phone: (520) 647-9173
Fax: (520) 647-9263
Street-level locationGet directions
Mailing address
3693 N River Canyon Rd
Tucson, AZ 85750-2113
Registry dates
- Enumerated
- 2009-02-04
- Last updated
- 2009-02-04
Frequently asked questions
- What is Karen Johnston's NPI number?
- Karen Johnston's National Provider Identifier (NPI) is 1376781906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Johnston's specialty?
- Karen Johnston is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Johnston located?
- Karen Johnston's practice location on file with NPPES is 6420 E Broadway Blvd, Tucson, AZ 85710-3534.
- What is Karen Johnston's phone number?
- The practice phone number listed in the NPPES registry for Karen Johnston is (520) 647-9173.
- Is Karen Johnston's NPI active?
- Yes — Karen Johnston's NPI (1376781906) is active in the NPPES registry as of the last update on 2009-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.