MAHESH LELLELLA MD
NPI 1669050498
Internal Medicine in San Leandro, CA
About Mahesh Lellella Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAHESH LELLELLA MD (NPI 1669050498) is an individual internal medicine provider in San Leandro, California, licensed in California (188418) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Fremont, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Mahesh Lellella Md 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 Reassignments
5Medicare enrollment records show Mahesh Lellella reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Linville, NC 28646
- Reassigned Medicare billing, North Carolina enrollment
- 1,646 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.
Areas of Expertise CMS Part B claims 3
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 94577 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.
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 Mahesh Lellella's NPI number?
The NPI number for Mahesh Lellella is 1669050498. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Mahesh Lellella located?
Mahesh Lellella practices at 2500 Merced St, San Leandro, CA 94577. The listed phone number is (510) 454-3000.
What is Mahesh Lellella's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mahesh Lellella enrolled in Medicare?
Yes. Mahesh Lellella 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 organizations bill Medicare for Mahesh Lellella's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahesh Lellella reassigns Medicare benefits to 5 organizations: Permanente Medical Group Inc (Redwood City, CA), Healthcare Partners Affiliates Medical Group (Los Angeles, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA), Inpatient Specialists Of California, PC (San Bernardino, CA) and Carolinas Physicians Network Inc (Linville, NC). Each 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 Mahesh Lellella'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 Mahesh Lellella was last updated on April 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Mahesh Lellella, MD · NPI 1669050498
Internal Medicine physician in San Leandro, California. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1669050498 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 188418 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2500 MERCED ST, San Leandro, CA 94577-4201
- **Phone:** (510) 454-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); Carolinas Physicians Network Inc (NPI 1609191022, Linville, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** April 8, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1669050498) · Data from the CMS NPPES public registry.