Quick answers
- Does Christy Perez Valles accept Medicare assignment?
- Yes. Medicare's clinician data says Christy Perez Valles 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 Christy Perez Valles see?
- In 2024, CMS data shows 712 Original Medicare patients and 2,603 services for Christy Perez Valles. This counts Original Medicare only and measures volume, not quality.
- What is Christy Perez Valles's NPI number?
- 1003173089. 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 Christy Perez Valles, 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 | 712 |
|---|---|
| Services billed to Medicare | 2,603 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)985 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)485 services
- Special stained specimen slides to examine tissue, initial procedure (88342)314 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)139 services
- Special stained specimen slides to examine tissue including interpretation and report (88313)130 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%
- Arthritis43%
- Diabetes42%
- Ischemic heart disease38%
- Chronic kidney disease32%
Hospitals where Christy Perez Valles works
Medicare's Facility Affiliation Data lists Christy Perez Valles 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 BakersfieldBakersfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050455
- Kaweah Health Medical CenterVisalia, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050057
Practice locations
Addresses where Christy Perez Valles is enrolled with Medicare (CMS data updated October 2, 2026).
- 4301 N Star Way, Suite AModesto, CA 95356 (209) 577‑1200
Group practices
Medicare enrollment lists Christy Perez Valles as a member of this group (CMS data updated October 2, 2026).
- Yosemite Pathology Medical Group Inc45 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Other clinicians in Yosemite Pathology Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003173089 |
| 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