Howard Youngworth, M.D.
NPI 1104019421 · Diagnostic Radiology Physician · Yuba City, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Youngworth, M.D. is a Diagnostic Radiology Physician provider in Yuba City, CA (NPI 1104019421).
Provider details
- NPI number
- 1104019421
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A96449 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,521 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,478 | $8 |
| Screening 3d Breast Mammography77063 | 656 | $53 |
| Screening Mammography77067 | 656 | $132 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 280 | $40 |
| Ct Scan Head Or Brain Without Contrast70450 | 273 | $39 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 142 | $48 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-20
- Last updated
- 2008-07-25
Frequently asked questions
- What is Howard Youngworth's NPI number?
- Howard Youngworth's National Provider Identifier (NPI) is 1104019421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Youngworth's specialty?
- Howard Youngworth is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Youngworth located?
- Howard Youngworth's practice location on file with NPPES is 945 Shasta St, Yuba City, CA 95991-4114.
- What is Howard Youngworth's phone number?
- The practice phone number listed in the NPPES registry for Howard Youngworth is (530) 674-9000.
- Does Howard Youngworth accept Medicare?
- Howard Youngworth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Youngworth's NPI active?
- Yes — Howard Youngworth's NPI (1104019421) is active in the NPPES registry as of the last update on 2008-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.