Howard J. Youngworth, M.D.
Diagnostic Radiology Physician · Yuba City, CA
Howard J. Youngworth, M.D. is a diagnostic radiology physician with a practice address in Yuba City, California, and NPI 1104019421, issued on Aug 20, 2007. Check the license (California A96449, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Howard J. Youngworth
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A96449 CA
Self-reported in NPPES; status is on the state search - Practice location
- 945 Shasta St, Yuba City, CA 95991
- Phone
- (530) 674-9000
- Enumerated
- Aug 20, 2007
- Record last updated
- Jul 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081209000736); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 945 Shasta St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rahul Gupta, MDNuclear Radiology Physician1366455784
- Kristofer Langheinrich, MDVascular & Interventional Radiology Physician1093133597
- Susan Lott, M.D.Diagnostic Radiology Physician1841278348
- Benjamin Nasman, D.O.Neuroradiology Physician1508125048
Verify Howard J. Youngworth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96449Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Adventist Health Physicians NetworkYuba City, CA
- Rideout Medical Associates IncYuba City, CA
- Rideout Memorial HospitalMarysville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Howard J. Youngworth among 4,500 diagnostic radiology physician records in California
Howard J. Youngworth, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2002 · median 2004 among the 3,130 with a school on file
- Record last updated2008 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Yuba City → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Nancy Chege, MDYuba City, CA 959911427148121
- Daniel Dorsey, M.D.Yuba City, CA 959911952389546
- Gregory Federer, M.D.Yuba City, CA 959911487817706
- Nelson Frink, M.D.Yuba City, CA 959911356329932
- Maria Garcia, M.D.Yuba City, CA 959911750301644
- Amanda Hoang, MDYuba City, CA 959911598912909
- Susan Lott, M.D.Yuba City, CA 959911841278348
- Mark Schneider, M.D.Yuba City, CA 959911548278690
Common questions
What is Howard J. Youngworth, M.D.'s NPI number?
Howard J. Youngworth, M.D.'s National Provider Identifier (NPI) is 1104019421, issued on Aug 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Howard J. Youngworth, M.D. located?
The NPPES record lists a practice address at 945 Shasta St, Yuba City, CA, 95991. Phone: (530) 674-9000. Providers update this record themselves, so call before visiting.
How can I verify Howard J. Youngworth, M.D.'s license?
NPPES lists California license number A96449, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Howard J. Youngworth, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.