Mark Callahan, LMFT
NPI 1063563245 · Marriage & Family Therapist · Victorville, CA
Mark Callahan, LMFT is a Marriage & Family Therapist provider in Victorville, CA (NPI 1063563245).
Provider details
- NPI number
- 1063563245
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 106759 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Marriage & Family Therapist106H00000X
Behavioral Health & Social Service Providers
- Day Training/Habilitation Specialist373H00000X
Nursing Service Related Providers
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
- 2007-01-15
- Last updated
- 2025-04-15
- Certified
- 2025-04-15
Frequently asked questions
- What is Mark Callahan's NPI number?
- Mark Callahan's National Provider Identifier (NPI) is 1063563245, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Callahan's specialty?
- Mark Callahan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Mark Callahan located?
- Mark Callahan's practice location on file with NPPES is 12421 Hesperia Rd Ste 2, Victorville, CA 92395-7704.
- What is Mark Callahan's phone number?
- The practice phone number listed in the NPPES registry for Mark Callahan is (760) 243-5417.
- Is Mark Callahan's NPI active?
- Yes — Mark Callahan's NPI (1063563245) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.