Doris Okafor, M.D.
Internal Medicine Physician · Romeoville, IL
Doris Okafor, M.D. is an internal medicine physician with a practice address in Romeoville, Illinois, and NPI 1659512945, issued on Mar 16, 2009. Check the license (Illinois 036125401, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Doris Okafor
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036125401 IL
Self-reported in NPPES; status is on the state search - Practice location
- 500 S Weber RD, Romeoville, IL 60446
- Phone
- (630) 856-8620
- Enumerated
- Mar 16, 2009
- Record last updated
- Mar 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110117000065); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 500 S Weber RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Kiley, FNPFamily Nurse Practitioner1023512274
- Jayme Mitchell, PA-CPhysician Assistant1619622784
- Claudia Vera, MDInternal Medicine Physician1811966534
- Nikhil VijCritical Care Medicine Registered Nurse1912495391
- Usman Zaheer, DOHematology & Oncology Physician1104319383
- Tammy Zweeres, APNNurse Practitioner1255690574
Verify Doris Okafor 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 036125401Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average internal medicine physician in 2024
3,875 Medicare Part D claims for 358 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium210 claims
- Amlodipine Besylate186 claims
- Levothyroxine Sodium149 claims
- Losartan Potassium144 claims
- Omeprazole96 claims
- Lisinopril93 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: $119.56
5 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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.
Bills Medicare through one group practice
- Adventist Health Partners, Inc.Bolingbrook, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Doris Okafor among 7,238 internal medicine physician records in Illinois
Doris Okafor, 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 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 49% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2002 · median 2003 among the 3,580 with a school on file
- Record last updated2021 · 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).
Internal Medicine Physician providers in Illinois
There are 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Romeoville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kelechi Emuchay, MDRomeoville, IL 604461215687504
- Claudia Vera, MDRomeoville, IL 604461811966534
- Zafar Ahmed, MDCrestwood, IL 604451700872272
- Deborah Basile, MDCrestwood, IL 604451497741953
- Muhammed Khan, M.D.Minooka, IL 604471386678183
- Charles Comfort, MDMazon, IL 604441861484321
- Orest Horodysky, MDMokena, IL 604481689749475
- Michelle Puzio-Bell, D.O.Mokena, IL 604481255325320
Common questions
What is Doris Okafor, M.D.'s NPI number?
Doris Okafor, M.D.'s National Provider Identifier (NPI) is 1659512945, issued on Mar 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Doris Okafor, M.D. located?
The NPPES record lists a practice address at 500 S Weber RD, Romeoville, IL, 60446. Phone: (630) 856-8620. Providers update this record themselves, so call before visiting.
How can I verify Doris Okafor, M.D.'s license?
NPPES lists Illinois license number 036125401, 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 Doris Okafor, M.D. prescribe under Medicare Part D?
In 2024, Doris Okafor, M.D. had 3,875 Medicare Part D claims for 358 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.