William John Ray, M.D.
Internal Medicine Physician · Bloomington, IL
William John Ray, M.D. is an internal medicine physician with a practice address in Bloomington, Illinois, and NPI 1689672859, issued on Jul 12, 2005. Check the license (Illinois 036-081186, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William John Ray
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-081186 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2501 E College Ave Ste C, Bloomington, IL 61704
- Phone
- (309) 807-5356
- Enumerated
- Jul 12, 2005
- Record last updated
- Jul 29, 2024
- Fax
- (309) 807-5291
- Medicaid ID
- 036-081186 IL
- Medicare enrollment
- Enrolled (PECOS I20040628000247); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2501 E College Ave Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William John Ray 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 036-081186Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average internal medicine physician in 2024
5,337 Medicare Part D claims for 241 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 160 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium415 claims
- Metoprolol Succinate256 claims
- Levothyroxine Sodium254 claims
- Atorvastatin Calcium220 claims
- Losartan Potassium200 claims
- Amlodipine Besylate140 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.
Industry payments in 2024: $170.90
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
William John Ray among 7,238 internal medicine physician records in Illinois
William John Ray, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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, 93% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1988 · median 2003 among the 3,580 with a school on file
- Record last updated2024 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 internal medicine physician records list a practice address in Bloomington
They are 37 of the 1,903 NPPES records with a practice address in Bloomington, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Bloomington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ahmed Ali, MBBCH (MD)Bloomington, IL 617041598498057
- Charles Dennis, M.D.Bloomington, IL 617041851326508
- Eric Duncan, MDBloomington, IL 617041841219763
- Ira Halperin, D.O.Bloomington, IL 617041548352107
- Lawrence Kneezel, M.D.Bloomington, IL 617041336174580
- Scott McLain, MDBloomington, IL 617041669463436
- Kathryn MulcaheyBloomington, IL 617041568542975
- Paul PedersenBloomington, IL 617041053403675
Common questions
What is William John Ray, M.D.'s NPI number?
William John Ray, M.D.'s National Provider Identifier (NPI) is 1689672859, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William John Ray, M.D. located?
The NPPES record lists a practice address at 2501 E College Ave Ste C, Bloomington, IL, 61704. Phone: (309) 807-5356. Providers update this record themselves, so call before visiting.
How can I verify William John Ray, M.D.'s license?
NPPES lists Illinois license number 036-081186, 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 John Ray, M.D. prescribe under Medicare Part D?
In 2024, William John Ray, M.D. had 5,337 Medicare Part D claims for 241 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.