MICHAEL JAO ESTEBAN M.D.
NPI 1821176637
Hospitalist in San Leandro, CA
About Michael Jao Esteban M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL JAO ESTEBAN M.D. (NPI 1821176637) is an individual hospitalist provider in San Leandro, California, licensed in California (A81995) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1997).
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 and accepts Medicare assignment
Michael Jao Esteban 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 Reassignment
Medicare enrollment records show Michael Esteban reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 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
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 Michael Esteban's NPI number?
The NPI number for Michael Esteban is 1821176637. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Michael Esteban located?
Michael Esteban practices at 2500 Merced St, San Leandro, CA 94577. The listed phone number is (510) 454-1000.
What is Michael Esteban's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Michael Esteban enrolled in Medicare?
Yes. Michael Esteban 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 organization bills Medicare for Michael Esteban's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Esteban reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Michael Esteban'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 Michael Esteban was last updated on December 9, 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.