IndividualActive
Mark Lien, LCSW
NPI 1205935699 · Clinical Social Worker · Sacramento, CA
Mark Lien, LCSW is a Clinical Social Worker provider in Sacramento, CA (NPI 1205935699).
Provider details
- NPI number
- 1205935699
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- LCS22227 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
2150 Stockton Blvd
Sacramento, CA 95817-1337
Phone: (916) 875-1000
Fax: (916) 875-1006
Street-level locationGet directions
Mailing address
2150 Stockton Blvd
Sacramento, CA 95817-1337
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Lien's NPI number?
- Mark Lien's National Provider Identifier (NPI) is 1205935699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lien's specialty?
- Mark Lien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Lien located?
- Mark Lien's practice location on file with NPPES is 2150 Stockton Blvd, Sacramento, CA 95817-1337.
- What is Mark Lien's phone number?
- The practice phone number listed in the NPPES registry for Mark Lien is (916) 875-1000.
- Is Mark Lien's NPI active?
- Yes — Mark Lien's NPI (1205935699) 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.