William Gray, D.O.
Hospitalist Physician · Carbondale, IL
William Gray, D.O. is a hospitalist physician with a practice address in Carbondale, Illinois, and NPI 1114378882, issued on Jun 23, 2016. Check the license (Illinois 036150636, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Gray
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036150636 IL
2016020051 MO
Self-reported in NPPES; status is on the state search - Practice location
- 405 W Jackson St, Carbondale, IL 62901
- Phone
- (615) 549-0721
- Enumerated
- Jun 23, 2016
- Record last updated
- Jun 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (618) 529-0479
- Medicare enrollment
- Enrolled (PECOS I20190923000980); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2016
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 405 W Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Osama Aaflaq, M.D.Emergency Medicine Physician1083663520
- Moses Adeyanju, M.D.Anatomic Pathology & Clinical Pathology Physician1306820121
- Muhammad Armughan Ali, M.D.Internal Medicine Physician1518588060
- Ahmad Alnasarat, M.DInternal Medicine Physician1568193654
- Oluwatosin Aluko-Olokun, M.D.Emergency Medicine Physician1992168702
- Saad AlviHospitalist Physician1194983981
Verify William Gray 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 036150636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average hospitalist physician in 2024
178 Medicare Part D claims for 93 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Amiodarone Hcl16 claims
- Metoprolol Succinate16 claims
- Prednisone16 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): 69.9 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: $413.06
2 payments; by number, the most common kind was travel and lodging; the largest payer was Edwards Lifesciences Corporation. The 7,324 providers of this specialty with any payment received $494.84 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.
Bills Medicare through one group practice
- Deaconess Illinois Specialty Clinic, Inc.Marion, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Gray among 1,535 hospitalist physician records in Illinois
William Gray, D.O. is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 57% of them.
- NPI issued2016 · 57% of these records are older, 37% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2016 · median 2013 among the 1,339 with a school on file
- Record last updated2021 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 hospitalist physician records list a practice address in Carbondale
They are 15 of the 1,088 NPPES records with a practice address in Carbondale, and 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Carbondale → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Saad AlviCarbondale, IL 629011194983981
- Shrutee Baniya, MDCarbondale, IL 629011699088203
- Craig Davis, MDCarbondale, IL 629011134201213
- Othniel Doolittle, M.D.Carbondale, IL 629011386965499
- Labib Elkahwaji, MDCarbondale, IL 629011114172186
- Syed Yamin Hashimi, M.D.Carbondale, IL 629011689094948
- Vineet Kumar, M.DCarbondale, IL 629011285074385
- Chandrasekhar Motkar, MDCarbondale, IL 629011730374489
Common questions
What is William Gray, D.O.'s NPI number?
William Gray, D.O.'s National Provider Identifier (NPI) is 1114378882, issued on Jun 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Gray, D.O. located?
The NPPES record lists a practice address at 405 W Jackson St, Carbondale, IL, 62901. Phone: (615) 549-0721. Providers update this record themselves, so call before visiting.
How can I verify William Gray, D.O.'s license?
NPPES lists Illinois license number 036150636, 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 Gray, D.O. prescribe under Medicare Part D?
In 2024, William Gray, D.O. had 178 Medicare Part D claims for 93 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is William Gray, D.O.'s MIPS final score?
The 2023 MIPS final score is 69.9 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.