SADHANA N.S. SONTI MD
NPI 1780800185
Internal Medicine in South San Francisco, CA
About Sadhana N.s. Sonti Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SADHANA N.S. SONTI MD (NPI 1780800185) is an individual internal medicine provider in South San Francisco, California, licensed in California (A86915) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1993).
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
Sadhana N.s. Sonti 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
2Medicare enrollment records show Sadhana Sonti reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Fremont, CA 94538
- Reassigned Medicare billing, California enrollment
- 127 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94080 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.
SOUTH SAN FRANCISCO, CA 94080
SOUTH SAN FRANCISCO, CA 94080
SOUTH SAN FRANCISCO, CA 94080
SOUTH SAN FRANCISCO, CA 94080
SOUTH SAN FRANCISCO, CA 94080
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 Sadhana Sonti's NPI number?
The NPI number for Sadhana Sonti is 1780800185. It was assigned to this individual provider in the NPPES registry on April 17, 2007.
Where is Sadhana Sonti located?
Sadhana Sonti practices at 1200 El Camino Real, South San Francisco, CA 94080. The listed phone number is (650) 742-2000.
What is Sadhana Sonti's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sadhana Sonti enrolled in Medicare?
Yes. Sadhana Sonti 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 Sadhana Sonti's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sadhana Sonti reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (San Francisco, CA) and Bay Area Community Health (Fremont, CA). 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 Sadhana Sonti'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 Sadhana Sonti was last updated on December 8, 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.
# Sadhana N.s. Sonti, MD · NPI 1780800185
Internal Medicine physician in South San Francisco, California. Individual provider, active in the CMS NPPES registry since April 17, 2007.
## Identity
- **NPI:** 1780800185 (Entity type: Individual)
- **Enumerated:** April 17, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A86915 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 EL CAMINO REAL, South San Francisco, CA 94080-3208
- **Phone:** (650) 742-2000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1841373800, San Francisco, CA); Bay Area Community Health (NPI 1184791998, Fremont, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** December 8, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1780800185) · Data from the CMS NPPES public registry.