David Williams, M.D.
Emergency Medicine Physician · Chicago, IL
David Williams, M.D. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1356325328, issued on Dec 2, 2005. Check the license (Illinois 036.087673, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- David Williams
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 036.087673 IL
036087673 IL
MD447590 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4801 S Drexel Blvd, Chicago, IL 60615
- Phone
- (708) 229-9500
- Enumerated
- Dec 2, 2005
- Record last updated
- May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050209000696); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1991
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Verify David Williams 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 036.087673Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average emergency medicine physician in 2024
19 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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: $19.63
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 12,335 providers of this specialty with any payment received $953.79 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 2 group practices
- Foundation For Emergency ServicesChicago, IL
- Heartland Emergency Physicians PLLCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Williams among 3,291 emergency medicine physician records in Illinois
David Williams, M.D. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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, 94% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1991 · median 2012 among the 1,867 with a school on file
- Record last updated2020 · 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 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Sheba Ampalloor, M.D.Chicago, IL 606151023039138
- Claudia Beals, MDChicago, IL 606151992959076
- Tapan Bhatt, D.O.Chicago, IL 606151215955620
- Lee Dudley, DOChicago, IL 606151215960026
- Linda Lynch, D.O.Chicago, IL 606151336342674
- Vishal Mittal, MDChicago, IL 606151558935288
- Bridgette Smith, M.D.Chicago, IL 606151467472159
- Pierre Wakim, D.O.Chicago, IL 606151235143405
Common questions
What is David Williams, M.D.'s NPI number?
David Williams, M.D.'s National Provider Identifier (NPI) is 1356325328, issued on Dec 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Williams, M.D. located?
The NPPES record lists a practice address at 4801 S Drexel Blvd, Chicago, IL, 60615. Phone: (708) 229-9500. Providers update this record themselves, so call before visiting.
How can I verify David Williams, M.D.'s license?
NPPES lists Illinois license number 036.087673, 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 David Williams, M.D. prescribe under Medicare Part D?
In 2024, David Williams, M.D. had 19 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.