William N Sokol Jr M D Inc
NPI 1538431598 · Allergy & Immunology Physician · Newport Beach, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William N Sokol Jr M D Inc is a Allergy & Immunology Physician organization in Newport Beach, CA (NPI 1538431598).
Provider details
- NPI number
- 1538431598
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Sokol, Owner(949) 645-3374
- License
- C31823 (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
14 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
- 2012-02-06
- Last updated
- 2013-12-26
Frequently asked questions
- What is William N Sokol Jr M D Inc's NPI number?
- William N Sokol Jr M D Inc's National Provider Identifier (NPI) is 1538431598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William N Sokol Jr M D Inc?
- William N Sokol Jr M D Inc is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is William N Sokol Jr M D Inc located?
- William N Sokol Jr M D Inc's practice location on file with NPPES is 400 Newport Center Dr, Newport Beach, CA 92660.
- What is William N Sokol Jr M D Inc's phone number?
- The practice phone number listed in the NPPES registry for William N Sokol Jr M D Inc is (949) 645-3374.
- Does William N Sokol Jr M D Inc accept Medicare?
- William N Sokol Jr M D 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 N Sokol Jr M D Inc?
- The authorized official listed on William N Sokol Jr M D Inc's NPPES record is William Sokol, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William N Sokol Jr M D Inc's NPI active?
- Yes — William N Sokol Jr M D Inc's NPI (1538431598) is active in the NPPES registry as of the last update on 2013-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.