Quick answers
- Does Katherine Fritz accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Fritz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Katherine Fritz see?
- In 2024, CMS data shows 176 Original Medicare patients and 313 services for Katherine Fritz. This counts Original Medicare only and measures volume, not quality.
- What is Katherine Fritz's NPI number?
- 1386136158. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Katherine Fritz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 176 |
|---|---|
| Services billed to Medicare | 313 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)112 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)21 services
- Automated urinalysis test (81003)13 services
- Detection test by nucleic acid for multiple types influenza virus (87502)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure63%
- High cholesterol57%
- Arthritis39%
- Depression27%
- Diabetes26%
- Anxiety26%
Hospitals where Katherine Fritz works
Medicare's Facility Affiliation Data lists Katherine Fritz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mammoth HospitalMammoth Lakes, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051303
- Northern Inyo HospitalBishop, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 051324
- Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051333
Practice locations
Addresses where Katherine Fritz is enrolled with Medicare (CMS data updated October 2, 2026).
- 85 Sierra Park RdMammoth Lakes, CA 93546 (760) 934‑3311
- PO BoxMammoth Lakes, CA 93546
- PO Box, Suite 660Mammoth Lakes, CA 93546
Group practices
Medicare enrollment lists Katherine Fritz as a member of this group (CMS data updated October 2, 2026).
- Southern Mono Health Care District100 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Mammoth Lakes
Clinicians with the same Medicare primary specialty in Mammoth Lakes, CA — not a recommendation.
Other clinicians in Southern Mono Health Care District
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| School | Oregon Health Sciences University School Of Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386136158 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians