Markman & Wolstan, a Medical Group
NPI 1457756991 · Ophthalmology Physician · Torrance, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Markman & Wolstan, a Medical Group is a Ophthalmology Physician organization in Torrance, CA (NPI 1457756991).
Provider details
- NPI number
- 1457756991
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Barry Wolstan, Partner(310) 543-4546
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
11 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
- 2014-10-27
- Last updated
- 2014-10-27
Frequently asked questions
- What is Markman & Wolstan, a Medical Group's NPI number?
- Markman & Wolstan, a Medical Group's National Provider Identifier (NPI) is 1457756991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Markman & Wolstan, a Medical Group?
- Markman & Wolstan, a Medical Group is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Markman & Wolstan, a Medical Group located?
- Markman & Wolstan, a Medical Group's practice location on file with NPPES is 3838 W Carson St, Torrance, CA 90503-6708.
- What is Markman & Wolstan, a Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Markman & Wolstan, a Medical Group is (310) 546-4546.
- Does Markman & Wolstan, a Medical Group accept Medicare?
- Markman & Wolstan, a Medical Group 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 Markman & Wolstan, a Medical Group?
- The authorized official listed on Markman & Wolstan, a Medical Group's NPPES record is Barry Wolstan, Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Markman & Wolstan, a Medical Group's NPI active?
- Yes — Markman & Wolstan, a Medical Group's NPI (1457756991) is active in the NPPES registry as of the last update on 2014-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.