William Sohn, M.D.
NPI 1467781583 · Urology Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Sohn, M.D. is a Urology Physician provider in Fontana, CA (NPI 1467781583).
Provider details
- NPI number
- 1467781583
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A106027 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Finasteride | 234 | 77 |
| Tamsulosin Hcl | 157 | 56 |
| Solifenacin Succinate | 47 | 15 |
| Ciprofloxacin Hcl | 33 | 28 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 18 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 17 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$186 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-12-19
- Last updated
- 2021-11-17
- Certified
- 2021-11-17
Frequently asked questions
- What is William Sohn's NPI number?
- William Sohn's National Provider Identifier (NPI) is 1467781583, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sohn's specialty?
- William Sohn is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is William Sohn located?
- William Sohn's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is William Sohn's phone number?
- The practice phone number listed in the NPPES registry for William Sohn is (909) 427-4081.
- Does William Sohn accept Medicare?
- William Sohn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Sohn's NPI active?
- Yes — William Sohn's NPI (1467781583) is active in the NPPES registry as of the last update on 2021-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.