Lonna Larsh, M.D.
NPI 1659351245 · Family Medicine Physician · Santa Cruz, CA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lonna Larsh, M.D. is a Family Medicine Physician provider in Santa Cruz, CA (NPI 1659351245).
Provider details
- NPI number
- 1659351245
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G75442 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 4450 Capitola RdCapitola, CA 95010-3570Phone: (831) 777-3030
- 700 River StSanta Cruz, CA 95060-2748Phone: (831) 457-2000
Registry dates
- Enumerated
- 2006-01-19
- Last updated
- 2019-05-13
Frequently asked questions
- What is Lonna Larsh's NPI number?
- Lonna Larsh's National Provider Identifier (NPI) is 1659351245, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lonna Larsh's specialty?
- Lonna Larsh is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lonna Larsh located?
- Lonna Larsh's practice location on file with NPPES is 709 Frederick St, Santa Cruz, CA 95062-2204.
- What is Lonna Larsh's phone number?
- The practice phone number listed in the NPPES registry for Lonna Larsh is (831) 421-0775.
- Does Lonna Larsh accept Medicare?
- Lonna Larsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lonna Larsh's NPI active?
- Yes — Lonna Larsh's NPI (1659351245) is active in the NPPES registry as of the last update on 2019-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.