TESS WHEELER KNUDSON-FITZPATRICK MD
NPI 1154853190
Internal Medicine - Sleep Medicine in Stanford, CA
About Tess Wheeler Knudson-fitzpatrick Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TESS WHEELER KNUDSON-FITZPATRICK MD (NPI 1154853190) is an individual sleep medicine provider in Stanford, California, licensed in California (A160785) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and maintains a secondary practice location in Reno.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Location 1
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
Tess Wheeler Knudson-fitzpatrick 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 Tess Knudson-fitzpatrick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Reno, NV 89521
- Reassigned Medicare billing, Nevada enrollment
- 735 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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Renown Regional Medical Center
Acute Care Hospitals · Reno, NVRenown South Meadows Medical Center
Acute Care Hospitals · Reno, NVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Tess Knudson-fitzpatrick's NPI number?
The NPI number for Tess Knudson-fitzpatrick is 1154853190. It was assigned to this individual provider in the NPPES registry on March 29, 2017.
Where is Tess Knudson-fitzpatrick located?
Tess Knudson-fitzpatrick practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Tess Knudson-fitzpatrick's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.
Is Tess Knudson-fitzpatrick enrolled in Medicare?
Yes. Tess Knudson-fitzpatrick 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 Tess Knudson-fitzpatrick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tess Knudson-fitzpatrick reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Redwood City, CA) and Community Care Services LLC (Reno, NV). 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 Tess Knudson-fitzpatrick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tess Knudson-fitzpatrick accept?
Health plans from Ambetter Health and Ambetter from Arizona Complete Health list Tess Knudson-fitzpatrick 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.
Is Tess Knudson-fitzpatrick affiliated with any hospitals?
According to CMS data, Tess Knudson-fitzpatrick is affiliated with Renown Regional Medical Center and Renown South Meadows Medical Center.
When was this NPI record last updated?
The NPPES record for Tess Knudson-fitzpatrick was last updated on October 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Tess Wheeler Knudson-Fitzpatrick, MD · NPI 1154853190
Sleep Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 29, 2017.
## Identity
- **NPI:** 1154853190 (Entity type: Individual)
- **Enumerated:** March 29, 2017
- **Primary specialty:** Internal Medicine - Sleep Medicine · taxonomy 207RS0012X
- **State license:** A160785 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## 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 1639252604, Redwood City, CA); Community Care Services LLC (NPI 1295180735, Reno, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Aurora, class of 2017
## Record status
- **NPPES last updated:** October 25, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1154853190) · Data from the CMS NPPES public registry.