ARUN SHARMA MD
NPI 1558540427
Internal Medicine - Critical Care Medicine in San Jose, CA
About Arun Sharma Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARUN SHARMA MD (NPI 1558540427) is an individual critical care medicine provider in San Jose, California, licensed in California (A117463) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Jose, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Accepted Insurance
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
Arun Sharma 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
6Medicare enrollment records show Arun Sharma reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Jose, CA 95124
- Reassigned Medicare billing, California enrollment
- 126 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1629301346 (California)
- 2,460 clinicians in this Medicare group
San Jose, CA 95139
- Reassigned Medicare billing, California enrollment
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Newark, CA 94560
- Reassigned Medicare billing, California enrollment
- 435 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 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 10
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 95124 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.
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.
SAN JOSE, CA 95124
SAN JOSE, CA 95124
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 Arun Sharma's NPI number?
The NPI number for Arun Sharma is 1558540427. It was assigned to this individual provider in the NPPES registry on October 29, 2007.
Where is Arun Sharma located?
Arun Sharma practices at 2585 Samaritan Dr, San Jose, CA 95124. The listed phone number is (888) 924-1036.
What is Arun Sharma's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Arun Sharma enrolled in Medicare?
Yes. Arun Sharma 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 Arun Sharma's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arun Sharma reassigns Medicare benefits to 6 organizations: Cep America - Intensivists PC (San Jose, CA), County Of Santa Clara (San Jose, CA), Atlas Intensive Care (San Jose, CA), Stanford Health Care (Stanford, CA), University Healthcare Alliance (Newark, CA) and 1 more organization, listed in the Medicare section above. 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 Arun Sharma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Arun Sharma accept?
Health plans from Imperial Insurance Companies, Inc. list Arun Sharma as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Arun Sharma was last updated on May 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Arun Sharma, MD · NPI 1558540427
Critical Care Medicine physician in San Jose, California. Individual provider, active in the CMS NPPES registry since October 29, 2007.
## Identity
- **NPI:** 1558540427 (Entity type: Individual)
- **Enumerated:** October 29, 2007
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** A117463 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2585 SAMARITAN DR, San Jose, CA 95124-4107
- **Phone:** (888) 924-1036
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Cep America - Intensivists PC (NPI 1598118887, San Jose, CA); County Of Santa Clara (NPI 1588721500, San Jose, CA); Atlas Intensive Care (NPI 1083350649, San Jose, CA); Stanford Health Care (NPI 1437292927, Stanford, CA); University Healthcare Alliance (NPI 1760531198, Newark, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** May 22, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1558540427) · Data from the CMS NPPES public registry.