Sean Markham
NPI 1316762115 · Addiction (Substance Use Disorder) Counselor · Los Angeles, CA
Sean Markham is a Addiction (Substance Use Disorder) Counselor provider in Los Angeles, CA (NPI 1316762115).
Provider details
- NPI number
- 1316762115
- 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
1 yr 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
- 2024-11-18
- Last updated
- 2024-11-18
- Certified
- 2024-11-18
Frequently asked questions
- What is Sean Markham's NPI number?
- Sean Markham's National Provider Identifier (NPI) is 1316762115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Markham's specialty?
- Sean Markham is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sean Markham located?
- Sean Markham's practice location on file with NPPES is 307 S Central Ave, Los Angeles, CA 90013-1709.
- What is Sean Markham's phone number?
- The practice phone number listed in the NPPES registry for Sean Markham is (213) 372-5233.
- Is Sean Markham's NPI active?
- Yes — Sean Markham's NPI (1316762115) is active in the NPPES registry as of the last update on 2024-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.