William G Lang MD a Professional Corporation
NPI 1578643847 · Internal Medicine Physician · Marina Del Rey, CA
William G Lang MD a Professional Corporation is a Internal Medicine Physician organization in Marina Del Rey, CA (NPI 1578643847).
Provider details
- NPI number
- 1578643847
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Lang, President(310) 536-8200
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
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
Mailing address
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2013-10-08
Frequently asked questions
- What is William G Lang MD a Professional Corporation's NPI number?
- William G Lang MD a Professional Corporation's National Provider Identifier (NPI) is 1578643847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William G Lang MD a Professional Corporation?
- William G Lang MD a Professional Corporation is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William G Lang MD a Professional Corporation located?
- William G Lang MD a Professional Corporation's practice location on file with NPPES is 4644 Lincoln Blvd., Marina Del Rey, CA 90292-6374.
- What is William G Lang MD a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for William G Lang MD a Professional Corporation is (310) 536-8200.
- Who is the authorized official for William G Lang MD a Professional Corporation?
- The authorized official listed on William G Lang MD a Professional Corporation's NPPES record is William Lang, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William G Lang MD a Professional Corporation's NPI active?
- Yes — William G Lang MD a Professional Corporation's NPI (1578643847) is active in the NPPES registry as of the last update on 2013-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.