DR. TONYA KALTENBACH MD
NPI 1578618419
Specialist in Palo Alto, CA
About Dr. Tonya Kaltenbach Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TONYA KALTENBACH MD (NPI 1578618419) is an individual specialist in Palo Alto, California, licensed in California (A81539) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2001).
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. Tonya Kaltenbach 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
4Medicare enrollment records show Tonya Kaltenbach reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 3
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.
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.
PALO ALTO, CA 94304
PALO ALTO, CA 94304
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 Tonya Kaltenbach's NPI number?
The NPI number for Tonya Kaltenbach is 1578618419. It was assigned to this individual provider in the NPPES registry on January 23, 2007.
Where is Tonya Kaltenbach located?
Tonya Kaltenbach practices at 3801 Miranda Ave Gi-111, Palo Alto, CA 94304. The listed phone number is (650) 493-5000.
What is Tonya Kaltenbach's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Tonya Kaltenbach enrolled in Medicare?
Yes. Tonya Kaltenbach 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 Tonya Kaltenbach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tonya Kaltenbach reassigns Medicare benefits to 4 organizations: Advanced Gi Endoscopy Inc (Mountain View, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Tonya Kaltenbach'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 Tonya Kaltenbach was last updated on December 31, 2015. 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. Tonya Kaltenbach, MD · NPI 1578618419
Specialist provider in Palo Alto, California. Individual provider, active in the CMS NPPES registry since January 23, 2007.
## Identity
- **NPI:** 1578618419 (Entity type: Individual)
- **Enumerated:** January 23, 2007
- **Primary specialty:** Specialist · taxonomy 174400000X
- **State license:** A81539 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3801 MIRANDA AVE, GI-111, Palo Alto, CA 94304-1207
- **Phone:** (650) 493-5000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Advanced Gi Endoscopy Inc (NPI 1437497096, Mountain View, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Jefferson Medical College Of Thomas Jefferson University, class of 2001
## Record status
- **NPPES last updated:** December 31, 2015
---
Source: [NPI Profile](https://npiprofile.com/npi/1578618419) · Data from the CMS NPPES public registry.