DR. MARK FARBER MD, PHD
NPI 1033552187
Internal Medicine in Sherman Oaks, CA
About Dr. Mark Farber Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK FARBER MD, PHD (NPI 1033552187) is an individual internal medicine provider in Sherman Oaks, California, licensed in California (A141401) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark Farber Md, Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mark Farber reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sherman Oaks, CA 91403
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Mark Farber MD Inc
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 23
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SHERMAN OAKS, CA 91403
SHERMAN OAKS, CA 91403
SHERMAN OAKS, CA 91403
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 Mark Farber's NPI number?
The NPI number for Mark Farber is 1033552187. It was assigned to this individual provider in the NPPES registry on April 8, 2013.
Where is Mark Farber located?
Mark Farber practices at 4849 Van Nuys Blvd Ste 202, Sherman Oaks, CA 91403. The listed phone number is (818) 784-5300.
What is Mark Farber's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Farber enrolled in Medicare?
Yes. Mark Farber is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mark Farber's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Farber reassigns Medicare benefits to Mark Farber, M.D., Inc. (Sherman Oaks, CA). The 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 Mark Farber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Farber was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.