Donald Lasher, O.D.
NPI 1922001593 · Optometrist · Lakeport, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Lasher, O.D. is a Optometrist provider in Lakeport, CA (NPI 1922001593).
Provider details
- NPI number
- 1922001593
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 9538T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 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
- 2005-05-27
- Last updated
- 2008-03-07
Frequently asked questions
- What is Donald Lasher's NPI number?
- Donald Lasher's National Provider Identifier (NPI) is 1922001593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Lasher's specialty?
- Donald Lasher is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Donald Lasher located?
- Donald Lasher's practice location on file with NPPES is 225 S Main St, Lakeport, CA 95453-5018.
- What is Donald Lasher's phone number?
- The practice phone number listed in the NPPES registry for Donald Lasher is (707) 263-0101.
- Does Donald Lasher accept Medicare?
- Donald Lasher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Lasher's NPI active?
- Yes — Donald Lasher's NPI (1922001593) is active in the NPPES registry as of the last update on 2008-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.