ALKA SHARMA M.D.
NPI 1275737561
Internal Medicine - Nephrology in Alameda, CA
About Alka Sharma M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALKA SHARMA M.D. (NPI 1275737561) is an individual nephrology provider in Alameda, California, licensed in California (A48009) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alka Sharma M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alka Sharma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Alameda, CA 94501
- Reassigned Medicare billing, California enrollment
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 11
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 94501 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 12
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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ALAMEDA, CA 94501
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 Alka Sharma's NPI number?
The NPI number for Alka Sharma is 1275737561. It was assigned to this individual provider in the NPPES registry on June 12, 2007.
Where is Alka Sharma located?
Alka Sharma practices at 2070 Clinton Ave Fl 4, Alameda, CA 94501. The listed phone number is (510) 748-0931.
What is Alka Sharma's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Alka Sharma enrolled in Medicare?
Yes. Alka Sharma is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alka Sharma's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alka Sharma reassigns Medicare benefits to Island Medical Group A Medical Corporation (Alameda, 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 Alka Sharma'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 Alka Sharma was last updated on July 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.