William H. Thom, M.D.
Pain Medicine (Anesthesiology) Physician · Jerseyville, IL
William H. Thom, M.D. is a pain medicine (anesthesiology) physician with a practice address in Jerseyville, Illinois, and NPI 1225015456, issued on Dec 29, 2005. Check the license (Illinois 036.118645, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William H. Thom
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License numbers
- 036.118645 IL
036118645 IL
2004005755 MO
Self-reported in NPPES; status is on the state search - Practice location
- 400 Maple Summit RD, Jerseyville, IL 62052
- Phone
- (618) 498-2273
- Enumerated
- Dec 29, 2005
- Record last updated
- Nov 13, 2024
- Fax
- (618) 498-8316
- Medicaid ID
- 255414300 MN
- Medicare enrollment
- Enrolled (PECOS I20070912000451); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 203 in Illinois → Look up another NPI →
Also registered at 400 Maple Summit RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Culiberk, AGNP-CGerontology Nurse Practitioner1407977234
- Beth Dalrymple-Woods, NPAdult Health Nurse Practitioner1194950816
- Raymond Hughes, D.O.Emergency Medicine Physician1528007879
Verify William H. Thom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.118645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
548 Medicare Part D claims for 140 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 261 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen135 claims
- Pregabalin100 claims
- Tramadol Hcl66 claims
- Gabapentin43 claims
- Duloxetine Hcl25 claims
- Buprenorphine21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,950.64
21 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Jersey Community HospitalJerseyville, IL · Acute Care Hospitals3 of 5 stars
- Anderson Medical Group LLCMaryville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
William H. Thom among 203 pain medicine (anesthesiology) physician records in Illinois
William H. Thom, M.D. is one of 203 pain medicine (anesthesiology) physician records with a practice address in Illinois. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2001 · median 2002 among the 144 with a school on file
- Record last updated2024 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in Illinois
There are 203 pain medicine (anesthesiology) physician records in Illinois.
All 203 in Illinois → Every provider in Jerseyville → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Andrew Hayden, MDAlton, IL 620021518451335
- James Boivin, MDBelleville, IL 622231285720573
- Randolph Freeman, MDBelleville, IL 622231093801383
- Michael Leavell, MDBelleville, IL 622231447351648
- Mark Morris, MDBelleville, IL 622231063512705
- Kathleen Slocomb, MDBelleville, IL 622231053418251
- Kristina Naseer, M.D.O Fallon, IL 622691811188949
- Brian Ogan, M.D.Champaign, IL 618221528077948
Common questions
What is William H. Thom, M.D.'s NPI number?
William H. Thom, M.D.'s National Provider Identifier (NPI) is 1225015456, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William H. Thom, M.D. located?
The NPPES record lists a practice address at 400 Maple Summit RD, Jerseyville, IL, 62052. Phone: (618) 498-2273. Providers update this record themselves, so call before visiting.
How can I verify William H. Thom, M.D.'s license?
NPPES lists Illinois license number 036.118645, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William H. Thom, M.D. prescribe under Medicare Part D?
In 2024, William H. Thom, M.D. had 548 Medicare Part D claims for 140 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is William H. Thom, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.