William Sandoval, MD
NPI 1912080912 · Family Medicine Physician · Belvidere, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Sandoval, MD is a Family Medicine Physician provider in Belvidere, IL (NPI 1912080912).
Provider details
- NPI number
- 1912080912
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-086443 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
314 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 180 | $59 |
| Hemoglobin A1c Level83036 | 53 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 45 | $133 |
| Administration of Influenza Virus VaccineG0008 | 23 | $34 |
| Admn Sarscov2 Vacc 1 Dose90480 | 13 | $45 |
Typical Medicare-allowed amounts for these services range $10–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 720 | 266 |
| Metformin Hcl | 340 | 115 |
| Amlodipine Besylate | 262 | 91 |
| Lisinopril | 257 | 85 |
| Losartan Potassium | 236 | 82 |
| Metformin Hclbrand: Metformin Hcl Er | 194 | 74 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 across 3 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
- 2006-10-23
- Last updated
- 2015-07-24
Frequently asked questions
- What is William Sandoval's NPI number?
- William Sandoval's National Provider Identifier (NPI) is 1912080912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sandoval's specialty?
- William Sandoval is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Sandoval located?
- William Sandoval's practice location on file with NPPES is 1747 Henry Luckow Ln, Belvidere, IL 61008-1702.
- What is William Sandoval's phone number?
- The practice phone number listed in the NPPES registry for William Sandoval is (815) 971-3030.
- Does William Sandoval accept Medicare?
- William Sandoval is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Sandoval's NPI active?
- Yes — William Sandoval's NPI (1912080912) is active in the NPPES registry as of the last update on 2015-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.