DR. UMESH HANSRAJ GHEEWALA M.D.
NPI 1982608568
Internal Medicine in San Mateo, CA
About Dr. Umesh Hansraj Gheewala M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. UMESH HANSRAJ GHEEWALA M.D. (NPI 1982608568) is an individual internal medicine provider in San Mateo, California, licensed in California (A38329) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Honolulu, and is a graduate of Other (1975).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 2
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
Dr. Umesh Hansraj Gheewala 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 Reassignments
3Medicare enrollment records show Umesh Gheewala reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palo Alto, CA 94301
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 859 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 2
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 94401 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.
SAN MATEO, CA 94401
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 Umesh Gheewala's NPI number?
The NPI number for Umesh Gheewala is 1982608568. It was assigned to this individual provider in the NPPES registry on June 10, 2005.
Where is Umesh Gheewala located?
Umesh Gheewala practices at 100 S San Mateo Dr, San Mateo, CA 94401. The listed phone number is (650) 696-4758.
What is Umesh Gheewala's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Umesh Gheewala enrolled in Medicare?
Yes. Umesh Gheewala 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 Umesh Gheewala's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Umesh Gheewala reassigns Medicare benefits to 3 organizations: Sutter Bay Medical Foundation (Palo Alto, CA), John Muir Physician Network (Walnut Creek, CA) and Queens University Medical Group (Honolulu, HI). 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 Umesh Gheewala's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Umesh Gheewala accept?
Health plans from HMSA list Umesh Gheewala 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 Umesh Gheewala was last updated on August 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Umesh Hansraj Gheewala, M.D. · NPI 1982608568
Internal Medicine physician in San Mateo, California. Individual provider, active in the CMS NPPES registry since June 10, 2005.
## Identity
- **NPI:** 1982608568 (Entity type: Individual)
- **Enumerated:** June 10, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A38329 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 S SAN MATEO DR, San Mateo, CA 94401-3805
- **Phone:** (650) 696-4758 · **Fax:** (650) 404-8408
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sutter Bay Medical Foundation (NPI 1013950807, Palo Alto, CA); John Muir Physician Network (NPI 1841407665, Walnut Creek, CA); Queens University Medical Group (NPI 1891441382, Honolulu, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1975
## Record status
- **NPPES last updated:** August 3, 2023
- **Other identifiers:** Other A38329 (CA); Other MD-03715 (HI)
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Source: [NPI Profile](https://npiprofile.com/npi/1982608568) · Data from the CMS NPPES public registry.