William Y Josephson, MD, Inc
NPI 1760814917 · Internal Medicine Physician · Northridge, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Y Josephson, MD, Inc is a Internal Medicine Physician organization in Northridge, CA (NPI 1760814917).
Provider details
- NPI number
- 1760814917
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Josephson, Owner(818) 837-7767
- License
- A44225 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-07-30
- Last updated
- 2013-07-30
Frequently asked questions
- What is William Y Josephson, MD, Inc's NPI number?
- William Y Josephson, MD, Inc's National Provider Identifier (NPI) is 1760814917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Y Josephson, MD, Inc?
- William Y Josephson, MD, Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Y Josephson, MD, Inc located?
- William Y Josephson, MD, Inc's practice location on file with NPPES is 17075 Devonshire St Ste 100a, Northridge, CA 91325-5405.
- What is William Y Josephson, MD, Inc's phone number?
- The practice phone number listed in the NPPES registry for William Y Josephson, MD, Inc is (818) 831-7767.
- Does William Y Josephson, MD, Inc accept Medicare?
- William Y Josephson, MD, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William Y Josephson, MD, Inc?
- The authorized official listed on William Y Josephson, MD, Inc's NPPES record is William Josephson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Y Josephson, MD, Inc's NPI active?
- Yes — William Y Josephson, MD, Inc's NPI (1760814917) is active in the NPPES registry as of the last update on 2013-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.