Marc Alper
NPI 1518154228 · Addiction (Substance Use Disorder) Counselor · South Lake Tahoe, CA
Marc Alper is a Addiction (Substance Use Disorder) Counselor provider in South Lake Tahoe, CA (NPI 1518154228).
Provider details
- NPI number
- 1518154228
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-09-26
- Last updated
- 2007-09-26
Frequently asked questions
- What is Marc Alper's NPI number?
- Marc Alper's National Provider Identifier (NPI) is 1518154228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Alper's specialty?
- Marc Alper is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marc Alper located?
- Marc Alper's practice location on file with NPPES is 921 Macinaw Rd, South Lake Tahoe, CA 96150-3525.
- What is Marc Alper's phone number?
- The practice phone number listed in the NPPES registry for Marc Alper is (530) 541-5440.
- Is Marc Alper's NPI active?
- Yes — Marc Alper's NPI (1518154228) is active in the NPPES registry as of the last update on 2007-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.