MARK BERNARD LEW M.D.
NPI 1851357560
Pediatrics - Adolescent Medicine in Brooklyn, NY
About Mark Bernard Lew M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK BERNARD LEW M.D. (NPI 1851357560) is an individual adolescent medicine provider in Brooklyn, New York, licensed in New York (133922) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Mark Bernard Lew M.d. 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 Lew reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brooklyn, NY 11210
- Reassigned Medicare billing, New York enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11210
BROOKLYN, NY 11210
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 Lew's NPI number?
The NPI number for Mark Lew is 1851357560. It was assigned to this individual provider in the NPPES registry on April 21, 2006.
Where is Mark Lew located?
Mark Lew practices at 2704 Glenwood Rd Mark B. Lew, MD, LLC, Brooklyn, NY 11210. The listed phone number is (718) 859-6440.
What is Mark Lew's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.
Is Mark Lew enrolled in Medicare?
Yes. Mark Lew 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 Lew's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lew reassigns Medicare benefits to Mark B. Lew, MD, LLC (Brooklyn, NY). 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 Lew'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 Lew was last updated on October 28, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.