MARKMAN & WOLSTAN, A MEDICAL GROUP
NPI 1457756991
Ophthalmology in Torrance, CA
About Markman & Wolstan, A Medical Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARKMAN & WOLSTAN, A MEDICAL GROUP (NPI 1457756991) is a healthcare organization registered as an ophthalmology in Torrance, California and active in the NPI registry since October 2014. The organization lists Barry Wolstan, Partner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Markman & Wolstan, A Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
10Medicare enrollment records show 10 clinicians reassign Medicare billing to Markman & Wolstan, A Medical Group, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 5 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (10)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Markman & Wolstan, A Medical Group's NPI number?
The NPI number for Markman & Wolstan, A Medical Group is 1457756991. It was assigned to this organization in the NPPES registry on October 27, 2014.
Where is Markman & Wolstan, A Medical Group located?
Markman & Wolstan, A Medical Group is located at 3838 W Carson St Suite 105, Torrance, CA 90503. The listed phone number is (310) 546-4546.
What is Markman & Wolstan, A Medical Group's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Markman & Wolstan, A Medical Group enrolled in Medicare?
Yes. Markman & Wolstan, A Medical Group is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Markman & Wolstan, A Medical Group?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Markman & Wolstan, A Medical Group. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Ophthalmology (8) and Optometry (2). Of these, 1 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Markman & Wolstan, A Medical Group accept?
Health plans from Anthem Blue Cross and Blue Shield and BlueCross BlueShield of Tennessee list Markman & Wolstan, A Medical Group as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Markman & Wolstan, A Medical Group was last updated on October 27, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Markman & Wolstan, A Medical Group · NPI 1457756991
Ophthalmology organization in Torrance, California. Organization record, active in the CMS NPPES registry since October 27, 2014.
## Identity
- **NPI:** 1457756991 (Entity type: Organization)
- **Enumerated:** October 27, 2014
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** Barry Wolstan, PARTNER
## Practice location
- **Address:** 3838 W CARSON ST, SUITE 105, Torrance, CA 90503-6708
- **Phone:** (310) 546-4546
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 10 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Ophthalmology (8), Optometry (2); 1 practice at this address and 5 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 27, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1457756991) · Data from the CMS NPPES public registry.