DR. JAYARAM S. HARIHARAN M.D.
NPI 1790004638
Family Medicine in San Ramon, CA
About Dr. Jayaram S. Hariharan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAYARAM S. HARIHARAN M.D. (NPI 1790004638) is an individual family medicine provider in San Ramon, California, licensed in California (A111419) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS and is a graduate of Other (1982).
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
Dr. Jayaram S. Hariharan 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 Jayaram Hariharan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 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 7
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 94583 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
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 RAMON, CA 94583
SAN RAMON, CA 94583
SAN RAMON, CA 94583
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 Jayaram Hariharan's NPI number?
The NPI number for Jayaram Hariharan is 1790004638. It was assigned to this individual provider in the NPPES registry on May 18, 2010.
Where is Jayaram Hariharan located?
Jayaram Hariharan practices at 5601 Norris Canyon Rd #200, San Ramon, CA 94583. The listed phone number is (925) 277-3070.
What is Jayaram Hariharan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Jayaram Hariharan enrolled in Medicare?
Yes. Jayaram Hariharan 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 Jayaram Hariharan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jayaram Hariharan reassigns Medicare benefits to John Muir Physician Network (Walnut Creek, 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 Jayaram Hariharan'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 Jayaram Hariharan was last updated on May 19, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Jayaram S. Hariharan, M.D. · NPI 1790004638
Family Medicine physician in San Ramon, California. Individual provider, active in the CMS NPPES registry since May 18, 2010.
## Identity
- **NPI:** 1790004638 (Entity type: Individual)
- **Enumerated:** May 18, 2010
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A111419 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5601 NORRIS CANYON RD, #200, San Ramon, CA 94583-5407
- **Phone:** (925) 277-3070 · **Fax:** (925) 866-8205
## 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:** John Muir Physician Network (NPI 1841407665, Walnut Creek, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** May 19, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1790004638) · Data from the CMS NPPES public registry.