Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Diagnostic Radiology

Howard J. Youngworth, MD

Works at hospitals in Marysville, CA · Colusa, CA · Chico, CA … · California

Summary

Dr. Howard J. Youngworth, MD is a radiologist at 370 Del Norte Ave, Suite 203, Yuba City, CA 95991. Phone: (530) 751-4015. Accepts Medicare assignment. In 2024, Howard J. Youngworth had 2,836 Original Medicare patients and 5,910 services. NPI 1104019421. 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.

  • Specialty: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 370 Del Norte Ave, Suite 203, Yuba City, CA 95991 · Directions (3 more locations)
  • Phone: (530) 751‑4015
  • Medicare: Accepts Medicare assignment
  • Hospitals: Adventist Health and Rideout, Colusa Medical Center, Enloe Health and 2 more
  • Group practice: Adventist Health Physicians Network (+2 more)
  • Medical school: graduated 2002 (24 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Howard J. Youngworth, 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 Howard J. Youngworth accept Medicare assignment?
Yes. Medicare's clinician data says Howard J. Youngworth 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 Howard J. Youngworth see?
In 2024, CMS data shows 2,836 Original Medicare patients and 5,910 services for Howard J. Youngworth. This counts Original Medicare only and measures volume, not quality.
What is Howard J. Youngworth's NPI number?
1104019421. 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 Howard J. Youngworth, 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 patients2,836
Services billed to Medicare5,910
Different services or procedures160
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. X-ray of chest, 1 view (71045)1,478 services
  2. Screening 3d breast mammography (77063)656 services
  3. Screening mammography (77067)656 services
  4. Dxa bone density measurement of hip, pelvis, spine (77080)280 services
  5. Ct scan head or brain without contrast (70450)273 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%
  • Arthritis47%
  • Diabetes44%
  • Ischemic heart disease33%
  • Chronic kidney disease31%

Hospitals where Howard J. Youngworth works

Medicare's Facility Affiliation Data lists Howard J. Youngworth 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 and RideoutMarysville, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050133
  • Colusa Medical CenterColusa, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050783
  • Enloe HealthChico, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050039
  • Orchard HospitalGridley, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051311
  • Oroville HospitalOroville, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050030

Practice locations

Addresses where Howard J. Youngworth is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Howard J. Youngworth as a member of these groups (CMS data updated October 2, 2026).

  • Adventist Health Physicians Network628 clinicians in the group
  • Rideout Memorial Hospital87 clinicians in the group
  • Rideout Medical Associates Inc3 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Yuba City

Clinicians with the same Medicare primary specialty in Yuba City, CA — not a recommendation.

All radiologists in Yuba City →

Other clinicians in Adventist Health Physicians Network

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

Clinician information

CredentialMD
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104019421
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