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Family Practice

Jessica H. Diaz, MD

Works at hospitals in Medford, OR · Oregon

Summary

Dr. Jessica H. Diaz, MD is a family doctor at 730 Biddle Rd, Medford, OR 97504. Phone: (541) 494-3800. Accepts Medicare assignment. In 2024, Jessica H. Diaz had 27 Original Medicare patients and 70 services. NPI 1578645404. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica H. Diaz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jessica H. Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Jessica H. Diaz 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 Jessica H. Diaz see?
In 2024, CMS data shows 27 Original Medicare patients and 70 services for Jessica H. Diaz. This counts Original Medicare only and measures volume, not quality.
What is Jessica H. Diaz's NPI number?
1578645404. 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 Jessica H. Diaz, 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 patients27
Services billed to Medicare70
Different services or procedures5
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Hemoglobin a1c level (83036)34 services
  2. Insertion of needle into vein for collection of blood sample (36415)23 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 cholesterol74%
  • High blood pressure70%
  • Diabetes48%

Hospitals where Jessica H. Diaz works

Medicare's Facility Affiliation Data lists Jessica H. Diaz 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.

Practice locations

Addresses where Jessica H. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jessica H. Diaz as a member of this group (CMS data updated October 2, 2026).

  • La Clinica del Valle Family Health Care Center Inc57 clinicians in the group

Specialties

Find other Family Practice doctors in Oregon →

Other family doctors in Medford

Clinicians with the same Medicare primary specialty in Medford, OR — not a recommendation.

All family doctors in Medford →

Other clinicians in La Clinica del Valle Family Health Care Center Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578645404
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians