Dr. Eliot C. Williams III, MD, PhD

  • Madison, WI
  • Hematology (internal medicine) physician
NPI1265493175PAC ID2062325350
Medicare services, 2024
410
Medicare patients, 2024
147
Part D claims, 2024
328
Publications
25
Clinical trials
5
Practice address
600 Highland Ave, Madison, WI 53792
Practice phone
Call (608) 265-1978
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

University Health Services - Madison (Highland Ave)

College / University Student Health · Madison, Wisconsin

See all 6 affiliations

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Dr. Eliot C. Williams III is a hematology (internal medicine) physician in Madison, Wisconsin

Dr. Williams practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.

Dr. Williams' NPI, 1265493175, was assigned on March 30, 2006. Dr. Williams graduated from Indiana University School Of Medicine in 1976. Dr. Williams' Wisconsin license number on file is 20949.

NPI and contact details
Medicare PAC ID
2062325350
NPI enumeration date
March 30, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(608) 265-1978
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
76
Medical school graduation
1976

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Eliot C. Williams III practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin

Dr. Williams' primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.

  • University Health Services - Madison (Highland Ave)
    600 Highland Ave, Madison, WI 53792Phone(608) 265-1978

Source: Dmand AI Affiliation Data

Dr. Eliot C. Williams III is affiliated with 5 sites of care and 1 medical group

Dr. Williams' primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dr. Williams is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Dr. Williams to 3 more hospitals, each named with a free account. Dr. Williams' employer is on file too: a school & student health.

See all 6 affiliations for Dr. Williams

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Eliot C. Williams III's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University Health Services - Madison (Highland Ave)Available with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Eliot C. Williams III is one of 18 hematology (internal medicine) physicians in Wisconsin

Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Williams is board certified in hematology by the American Board of Internal Medicine. Dr. Williams has a license on file in Wisconsin.

Specialties and state licenses

  • Hematology (internal medicine), WisconsinPrimaryLicense 20949 · 1977 to 2025 · taxonomy 207RH0000X

Clinical focus

Dmand AI lists chronic anemia, chronic leukemia, lymphoma, multiple myeloma and purpura and thrombocytopenia among the conditions Dr. Williams treats.

Hematology (internal medicine) physicians near Dr. Williams

Counts of hematology (internal medicine) physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Eliot C. Williams III billed Medicare for 410 services in 2024

CMS data shows 410 Medicare services from Dr. Williams across 8 procedure codes in 2024, for 147 Medicare patients. Medicare paid $14,173 for them.

Medicare services, 2024410
Medicare patients147
Paid by Medicare$14,173
Procedure codes8

Dr. Williams' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1892024: 1757%
Other services
2023: 02024: 115
Surgery
2023: 1242024: 10019%
Lab and pathology
2023: 582024: 2066%

Where Dr. Williams' Medicare services took place, 2024

  • In an office12029%
  • In a facility29071%

Dr. Williams compared with the Wisconsin median for hematology (internal medicine) physicians, 2024

  • Dr. Williams
  • Wisconsin median
Medicare services
410vs 32825% above
Medicare patients
147vs 12815% above
Part D claims
269vs 2488% above

Medians across 14 hematology (internal medicine) physicians in Wisconsin 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.

See all procedures by Dr. Williams

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Eliot C. Williams III treated 147 Medicare patients in 2024, average age 72

CMS counts 147 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 62 patients. 69% of them have high blood pressure, and 63% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.20, 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 69, with 46% women.

Medicare patients, 2024147
Average age72
Average risk score2.20
Also on Medicaid16%

Dr. Williams' Medicare patients by age, 2024

Dr. Williams' Medicare patients by sex, 2024

  • Women7249%
  • Men7551%

Chronic conditions among Dr. Williams' Medicare patients, 2024

  1. High blood pressure69%
  2. High cholesterol63%
  3. Arthritis39%
  4. Chronic kidney disease34%
  5. Diabetes31%
  6. Heart failure31%
  7. Mood disorders29%
  8. Ischemic heart disease28%

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 69

Patient panel by sex, all payers

  • Women46%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Eliot C. Williams III wrote 328 Medicare Part D claims in 2024

In 2024, Dr. Williams wrote 328 Medicare Part D claims for 46 patients. 79% of them were for generic drugs. CMS names the drug for 269 of them, across 10 drugs with 11 or more claims each, at $403,504 in total drug cost. In 2023, CMS named 279 claims across 9 drugs.

Part D claims, 2024328
Drugs named by CMS10
Total drug cost$403,504
Part D patients46

Dr. Williams' Part D claims by kind of drug, 2024

  • Generic259 claims79%
  • Brand-name69 claims21%

Dr. Williams' most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2792024: 2694%

Drugs named by CMS: 10 in 2024, 9 in 2023.

See all prescribing by Dr. Williams

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

Dr. Eliot C. Williams III scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Williams for performance year 2024, reported as part of a group. Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Williams as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Williams' MIPS scores, performance year 2024

  • 83of 100Final score
  • 87.8of 100Quality
  • 77of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Eliot C. Williams III has 25 publications on record

Dmand AI links 25 papers to Dr. Williams, published from 2008 to 2022. 2022 was the busiest year, with 3. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Anticoagulants and Doxorubicin. Dr. Williams has published most often in Cancer Invest. Dr. Williams' most frequent co-authors are Brad Steven Kahl, MD, Edwin Jason Abel, MD and Rafat Abonour, MD.

Papers25
Years published2008 to 2022

Dr. Williams' papers by year, 2008 to 2022

Topics Dr. Williams writes about most

  • Antineoplastic Combined Chemotherapy Protocols
  • Anticoagulants
  • Doxorubicin
  • Fibrinogen
  • Hemorrhage
  • Heparin
  • Infections
  • Multiple Myeloma

Dr. Williams' most frequent co-authors

Recent publications by Dr. Williams

See all 25 publications and co-authors

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 hematology (internal medicine) physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Eliot C. Williams III has worked on 5 clinical trials

Dmand AI links Dr. Williams to 5 clinical trials, 3 of them phase 3 studies. Conditions studied include Thrombocytopenia, Agranulocytosis and Purpura, Thrombocytopenic, Idiopathic. Carelon Research sponsors the most, 5.

Conditions in Dr. Williams' trials

  • Thrombocytopenia
  • Agranulocytosis
  • Purpura, Thrombocytopenic, Idiopathic
  • Purpura, Thrombotic Thrombocytopenic
  • Thromboembolism

Investigators on the most trials with Dr. Williams

Recent clinical trials with Dr. Williams

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Eliot C. Williams III received $38 in industry payments in 2018

CMS Open Payments shows 1 general payment to Dr. Williams from 1 drug or device company in 2018. Education make up the largest share, 100% of the total. Genentech, Inc. paid the most, $38. It also lists 8 research payments totaling $38,147 in 2018.

Companies that paid Dr. Williams the most, 2018 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Eliot C. Williams III graduated from Indiana University School Of Medicine

Dr. Williams graduated from Indiana University School Of Medicine in 1976.

  1. Medical schoolIndiana University School Of Medicine
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Eliot C. Williams III accepts plans from 14 insurance carriers

Dr. Williams is in network with 14 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

Plan types Dr. Williams accepts, by number of carriers

  1. HMO8
  2. Medicare6
  3. PPO6
  4. POS5
  5. Medicaid2
  6. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Eliot C. Williams III's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Eliot C. Williams III

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. Eliot C. Williams III's NPI number?

Dr. Eliot C. Williams III's NPI number is 1265493175. It was assigned on March 30, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Eliot C. Williams III?

Dr. Eliot C. Williams III is a hematology (internal medicine) physician in Madison, Wisconsin. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).

Where does Dr. Eliot C. Williams III practice?

Dr. Williams practices at 600 Highland Ave, Madison, WI 53792. Dr. Williams' primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Dr. Williams to 3 hospitals.

What is Dr. Eliot C. Williams III's office phone number?

The practice phone on file for Dr. Williams is (608) 265-1978.

What is Dr. Eliot C. Williams III's medical license number?

Dr. Williams' Wisconsin license number on file is 20949.

Which hospitals is Dr. Eliot C. Williams III affiliated with?

Dr. Williams is affiliated with University Hospital. Dmand AI links Dr. Williams to 3 more hospitals.

What medical group is Dr. Eliot C. Williams III part of?

Dr. Williams is linked to UW Health.

Does Dr. Eliot C. Williams III accept Medicare?

Yes. CMS data shows Dr. Williams billed Medicare for 410 services in 2024, and Dr. Williams accepts Medicare assignment.

Does Dr. Eliot C. Williams III offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Williams as offering telehealth services.

What is Dr. Eliot C. Williams III's MIPS score?

Dr. Williams' MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Eliot C. Williams III see?

CMS counts 147 Medicare patients who saw Dr. Williams in 2024, with an average age of 72.

Is Dr. Eliot C. Williams III board certified?

Yes. Dr. Williams is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. Eliot C. Williams III bill to Medicare?

In 2024, Dr. Williams' most billed Medicare services were medicare service (G2211), surgery: heart and blood vessels (36415) and office visit, established patient (99213).

Where did Dr. Eliot C. Williams III go to medical school?

Dr. Williams graduated from Indiana University School Of Medicine in 1976.

What drugs does Dr. Eliot C. Williams III prescribe most?

In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Hydroxyurea, Mycophenolate Mofetil and Prednisone.

Has Dr. Eliot C. Williams III received payments from drug or device companies?

CMS Open Payments shows $38 in general payments to Dr. Williams from 1 company from 2018 to 2018. The largest total came from Genentech, Inc.

How long has Dr. Eliot C. Williams III been practicing?

Dr. Williams graduated from medical school in 1976, 50 years ago.

Does Dr. Eliot C. Williams III do research?

Dmand AI links 25 publications to Dr. Williams, published from 2008 to 2022. Dr. Williams has worked on 5 clinical trials.

Who does Dr. Eliot C. Williams III publish with?

Dr. Williams' most frequent co-authors are Brad Steven Kahl, MD (3 shared papers), Edwin Jason Abel, MD (1 shared paper) and Rafat Abonour, MD (1 shared paper).

What insurance does Dr. Eliot C. Williams III accept?

Dr. Williams is in network with 14 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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