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Dr. David E. Williams, MD
NPI1356325328PAC ID5395796197
- Medicare services, 2024
- 176
- Medicare patients, 2024
- 151
- Part D claims, 2024
- 19
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 8012 South Crandon Avenue, Chicago, IL 60617
- Practice phone
- Call (773) 356-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. David E. Williams is an emergency medicine physician in Chicago, Illinois
Dr. Williams practices at South Shore Hospital in Chicago, Illinois, part of South Shore Hospital.
Dr. Williams' NPI, 1356325328, was assigned on December 2, 2005. Dr. Williams graduated from Harvard Medical School in 1991. Dr. Williams holds Pennsylvania license MD447590.
NPI and contact details
- NPI
- 1356325328NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395796197
- NPI enumeration date
- December 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 356-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David E. Williams practices at South Shore Hospital in Chicago, Illinois
Dr. Williams' primary practice is South Shore Hospital, at 8012 South Crandon Avenue, Chicago, IL 60617 in Cook County. The practice phone is (773) 356-5000.
- South Shore Hospital8012 South Crandon Avenue, Chicago, IL 60617 · Cook CountyPhone(773) 356-5000
Source: Dmand AI Affiliation Data
Dr. David E. Williams is affiliated with 2 sites of care and 15 medical groups
Dr. Williams' primary practice is South Shore Hospital in Chicago, Illinois, part of South Shore Hospital. Dr. Williams is also affiliated with St. Bernard Hospital and Health Care Center. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Williams to 14 more medical groups, each named with a free account.
St. Bernard Hospital and Health Care CenterDreyer Medical Clinic (Advocate Medical Group)14 medical groupsNames with a free account
See all 17 affiliations for Dr. WilliamsSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David E. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Shore Hospital | Available with a free account |
| +1 more site and 14 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. David E. Williams is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Williams' licenses on file in 2 states: Pennsylvania and Illinois.
Specialties and state licenses
- Emergency medicine, PennsylvaniaPrimary
- Emergency medical services (emergency medicine), Illinois
Emergency medicine physicians near Dr. Williams
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
2,385emergency medicine physicians in Illinois613emergency medicine physicians in Chicago4emergency medicine physicians at South Shore Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David E. Williams billed Medicare for 176 services in 2024
CMS data shows 176 Medicare services from Dr. Williams across 3 procedure codes in 2024, for 151 Medicare patients. Medicare paid $20,678 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024176
Medicare patients151
Paid by Medicare$20,678
Procedure codes3
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1782024: 1761%
Dr. Williams compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Williams
- Illinois median
- Medicare services
- 176vs 27436% below
- Medicare patients
- 151vs 27345% below
- Part D claims
- 32vs 4529% below
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Williams?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David E. Williams treated 151 Medicare patients in 2024, average age 68
CMS counts 151 Medicare patients who saw Dr. Williams in 2024. The largest group is under 65, with 54 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 87% are also on Medicaid. Their average risk score is 2.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 54, with 52% women.
Medicare patients, 2024151
Average age68
Average risk score2.57
Also on Medicaid87%
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women7147%
- Men8053%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis54%
- Mood disorders52%
- Anxiety50%
- Diabetes49%
- Ischemic heart disease48%
- Tobacco use47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David E. Williams wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 19 Medicare Part D claims. 79% of them were for generic drugs. They cover 2 drugs, with $277 in total drug cost. In 2018, CMS named 62 claims across 4 drugs.
Part D claims, 202419
Drugs named by CMS2
Total drug cost$277
Dr. Williams' Part D claims by kind of drug, 2024
- Generic15 claims79%
- Brand-name and other4 claims21%
Dr. Williams' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 622019: 3248%
Drugs named by CMS: 2 in 2019, 4 in 2018.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David E. Williams takes part in Medicare
Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Dr. David E. Williams has 1 publication on record
Dmand AI links 1 paper to Dr. Williams in 2022.
Papers1
Recent publications by Dr. Williams
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David E. Williams received $54 in industry payments from 2020 to 2025
CMS Open Payments shows 3 general payments to Dr. Williams from 3 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $20.
General payments to Dr. Williams by program year, 2020 to 2025
Companies that paid Dr. Williams the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David E. Williams graduated from Harvard Medical School
Dr. Williams graduated from Harvard Medical School in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David E. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David E. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. David E. Williams' NPI number?
Dr. David E. Williams' NPI number is 1356325328. It was assigned on December 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David E. Williams?
Dr. David E. Williams is an emergency medicine physician in Chicago, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David E. Williams practice?
Dr. Williams practices at 8012 South Crandon Avenue, Chicago, IL 60617. Dr. Williams' primary practice is South Shore Hospital in Chicago, Illinois, part of South Shore Hospital. Dmand AI also links Dr. Williams to 14 medical groups.
What is Dr. David E. Williams' office phone number?
The practice phone on file for Dr. Williams is (773) 356-5000.
What is Dr. David E. Williams' medical license number?
Dr. Williams holds Pennsylvania license MD447590, one of the licenses on file in 2 states.
Which states has Dr. David E. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Pennsylvania and Illinois.
Which hospitals is Dr. David E. Williams affiliated with?
Dr. Williams practices at South Shore Hospital in Chicago, Illinois. Dr. Williams is also affiliated with St. Bernard Hospital and Health Care Center.
What medical group is Dr. David E. Williams part of?
Dr. Williams is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Williams to 14 more medical groups.
Does Dr. David E. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 176 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. David E. Williams see?
CMS counts 151 Medicare patients who saw Dr. Williams in 2024, with an average age of 68.
Show 6 more questionsShow fewer questions
What services does Dr. David E. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Where did Dr. David E. Williams go to medical school?
Dr. Williams graduated from Harvard Medical School in 1991.
What drugs does Dr. David E. Williams prescribe most?
In 2019 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Azithromycin and Cephalexin.
Has Dr. David E. Williams received payments from drug or device companies?
CMS Open Payments shows $54 in general payments to Dr. Williams from 3 companies from 2020 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. David E. Williams been practicing?
Dr. Williams graduated from medical school in 1991, 35 years ago.
Does Dr. David E. Williams do research?
Dmand AI links 1 publication to Dr. Williams.
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