NPPES file of Aug 9, 2026

Thomas J. Halloran, MD

Internal Medicine Physician · Danville, IL

Thomas J. Halloran, MD is an internal medicine physician with a practice address in Danville, Illinois, and NPI 1588696785, issued on Jul 7, 2006. Check the license (Illinois 036070451, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588696785
Name
Thomas J. Halloran
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036070451 IL
Self-reported in NPPES; status is on the state search
Practice location
311 W. Fairchild Street, Danville, IL 61832
Phone
(217) 431-7600
Enumerated
Jul 7, 2006
Record last updated
Sep 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(217) 431-7850
Medicare enrollment
Enrolled (PECOS I20100604000935); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 311 W. Fairchild Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karen Broaders, MDFamily Medicine Physician1699703777
  2. James Deboer, MDFamily Medicine Physician1801821558
  3. Thomas Herrmann, M.D.Psychiatry Physician1982629051
  4. Monique Howard, M.D.Pediatric Adolescent Medicine Physician1346243326
  5. Debora O'Brien, PAPhysician Assistant1417008582
  6. Darla O'Shaughnessy, NPNurse Practitioner1487705687

Verify Thomas J. Halloran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036070451
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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7.4 times the Medicare Part D claims of the average internal medicine physician in 2024

23,474 Medicare Part D claims for 1,857 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 1,714 claims were for opioids.

  1. Thomas Halloran23,474
  2. Specialty average3,176

Most prescribed

  1. Hydrocodone-Acetaminophen1,256 claims
  2. Atorvastatin Calcium1,144 claims
  3. Levothyroxine Sodium928 claims
  4. Omeprazole815 claims
  5. Amlodipine Besylate777 claims
  6. Hydrochlorothiazide688 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.

Bills Medicare through one group practice

  1. Hoopeston Community Memorial HospitalHoopeston, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

26 internal medicine physician records list a practice address in Danville

They are 26 of the 1,006 NPPES records with a practice address in Danville, and 7,238 internal medicine physician records in Illinois.

Other internal medicine physician records in Illinois

  1. Peter Abadeer, D.O.Bloomington, IL1760469522
  2. Motaz Abas, MDPeoria, IL1215510201
  3. Elias Abate, M.D.Chicago, IL1336712199
  4. Maliha Abbas, D.O.Chicago, IL1174963920
  5. Zareena Abbas, MDChicago, IL1427078872
  6. Abu Abbasi, MDChicago, IL1083243877
  7. Ayesha Abbasi, MDChicago, IL1376216705
  8. Khalda Abbasi, MDNaperville, IL1487705240
  9. Elmer Abbo, MDBurr Ridge, IL1710048541
  10. Paul Abbo, M.D.River Forest, IL1083693378

Common questions

What is Thomas J. Halloran, MD's NPI number?

Thomas J. Halloran, MD's National Provider Identifier (NPI) is 1588696785, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas J. Halloran, MD located?

The NPPES record lists a practice address at 311 W. Fairchild Street, Danville, IL, 61832. Phone: (217) 431-7600. Providers update this record themselves, so call before visiting.

How can I verify Thomas J. Halloran, MD's license?

NPPES lists Illinois license number 036070451, 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 Thomas J. Halloran, MD prescribe under Medicare Part D?

In 2024, Thomas J. Halloran, MD had 23,474 Medicare Part D claims for 1,857 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.