Mark Larson, PH.D.
NPI 1124088208 · Clinical Psychologist · Rochester, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Larson, PH.D. is a Clinical Psychologist provider in Rochester, NY (NPI 1124088208).
Provider details
- NPI number
- 1124088208
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- License
- 013650 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-03-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Larson's NPI number?
- Mark Larson's National Provider Identifier (NPI) is 1124088208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Larson's specialty?
- Mark Larson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Larson located?
- Mark Larson's practice location on file with NPPES is 130 Allens Creek Rd, Rochester, NY 14618-3305.
- What is Mark Larson's phone number?
- The practice phone number listed in the NPPES registry for Mark Larson is (585) 473-5810.
- Does Mark Larson accept Medicare?
- Mark Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Larson's NPI active?
- Yes — Mark Larson's NPI (1124088208) 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.