MARK DREW PELLEGRINO MD
NPI 1124176912
Family Medicine - Geriatric Medicine in Anaheim, CA
About Mark Drew Pellegrino Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK DREW PELLEGRINO MD (NPI 1124176912) is an individual geriatric medicine provider in Anaheim, California, licensed in California (G69878) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.
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 (PECOS)
Mark Drew Pellegrino Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Pellegrino reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92807 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANAHEIM, CA 92807
ANAHEIM, CA 92807
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 Pellegrino's NPI number?
The NPI number for Mark Pellegrino is 1124176912. It was assigned to this individual provider in the NPPES registry on January 8, 2007.
Where is Mark Pellegrino located?
Mark Pellegrino practices at 441 N Lakeview Ave, Anaheim, CA 92807. The listed phone number is (888) 988-2800.
What is Mark Pellegrino's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.
Is Mark Pellegrino enrolled in Medicare?
Yes. Mark Pellegrino is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Pellegrino's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Pellegrino reassigns Medicare benefits to Southern California Permanente Medical Group (Anaheim, 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 Pellegrino'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 Pellegrino was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.