OrganizationActiveAccepts Medicare
Nathan Alyesh MD Inc
NPI 1821500380 · General Acute Care Hospital · Tarzana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1821500380
- Entity type
- Organization
- Primary specialty
- General Acute Care HospitalHospitals
- Organization subpart
- No
- Authorized official
- Nathan Alyesh, President(818) 881-0800
Specialties & taxonomies
Hospitals
Profile Score
Established profile(69/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
18321 Clark St
Tarzana, CA 91356-3501
Phone: (818) 881-0800
Street-level locationGet directions
Mailing address
18321 Clark St
Tarzana, CA 91356-3501
Registry dates
- Enumerated
- 2017-10-24
- Last updated
- 2019-05-16
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.