Quick answers
- Does Tonya F. Fuller accept Medicare assignment?
- Yes. Medicare's clinician data says Tonya F. Fuller 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 Tonya F. Fuller see?
- In 2024, CMS data shows 567 Original Medicare patients and 2,812 services for Tonya F. Fuller. This counts Original Medicare only and measures volume, not quality.
- What is Tonya F. Fuller's NPI number?
- 1043304611. 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 Tonya F. Fuller, 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 | 567 |
|---|---|
| Services billed to Medicare | 2,812 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)308 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)204 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)139 services
- Needle measurement of electrical activity in arm or leg muscles, limited study (95885)53 services
- Measurement of brain wave activity (eeg), awake and drowsy (95816)51 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 pressure75%
- High cholesterol75%
- Arthritis60%
- Diabetes34%
- Chronic kidney disease32%
- Anxiety30%
Hospitals where Tonya F. Fuller works
Medicare's Facility Affiliation Data lists Tonya F. Fuller 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.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
- Memorial Medical CenterModesto, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050557
- San Joaquin General HospitalFrench Camp, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050167
Practice locations
Addresses where Tonya F. Fuller is enrolled with Medicare (CMS data updated October 2, 2026).
- 1700 Coffee RdModesto, CA 95355 (209) 526‑4500
- 2800 L StSacramento, CA 95816
- 500 W Hospital RdFrench Camp, CA 95231 (209) 468‑6600
- 600 Coffee RdModesto, CA 95355 (209) 524‑1211
Group practices
Medicare enrollment lists Tonya F. Fuller as a member of these groups (CMS data updated October 2, 2026).
- Sutter Valley Medical Foundation2,500 clinicians in the group
- County of San Joaquin199 clinicians in the group
- San Joaquin Faculty Medical Group128 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Other clinicians in Sutter Valley Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043304611 |
| 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