William Thom, M.D.
NPI 1225015456 · Pain Medicine (Anesthesiology) Physician · Jerseyville, IL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Thom, M.D. is a Pain Medicine (Anesthesiology) Physician provider in Jerseyville, IL (NPI 1225015456).
Provider details
- NPI number
- 1225015456
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2004005755 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,003 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 228 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 115 | $123 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 68 | $68 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 57 | $138 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 56 | $134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 135 | 51 |
| Pregabalin | 100 | 28 |
| Tramadol Hcl | 66 | 29 |
| Gabapentin | 43 | 12 |
| Duloxetine Hcl | 25 | 11 |
| Buprenorphine | 21 | — |
| Methylprednisolone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,951 across 21 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
Additional practice locations (3)
- 220 E County RdE Annex BldgJerseyville, IL 62052Phone: (618) 498-8467Fax: (618) 639-2017
- 6828 State Route 162 Ste aMaryville, IL 62062-8558Phone: (618) 288-8363Fax: (618) 288-8364
- 12 Wolf CreekSuite 200Swansea, IL 62206Phone: (618) 239-9910Fax: (618) 239-9795
Registry dates
- Enumerated
- 2005-12-29
- Last updated
- 2024-11-13
- Certified
- 2024-11-13
Frequently asked questions
- What is William Thom's NPI number?
- William Thom's National Provider Identifier (NPI) is 1225015456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thom's specialty?
- William Thom is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is William Thom located?
- William Thom's practice location on file with NPPES is 400 Maple Summit Rd, Jerseyville, IL 62052.
- What is William Thom's phone number?
- The practice phone number listed in the NPPES registry for William Thom is (618) 498-2273.
- Does William Thom accept Medicare?
- William Thom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Thom's NPI active?
- Yes — William Thom's NPI (1225015456) is active in the NPPES registry as of the last update on 2024-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.