Emma Williams, MD
Hematology & Oncology Physician · Madison, WI
Emma Williams, MD is a hematology & oncology physician with a practice address in Madison, Wisconsin, and NPI 1457972804, issued on Apr 27, 2020. Check the license (Wisconsin 77577-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Emma Williams
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 77577-20 WI
77577 WI
Self-reported in NPPES; status is on the state search - Practice location
- 600 Highland Ave, Madison, WI 53792
- Phone
- (608) 263-6400
- Enumerated
- Apr 27, 2020
- Record last updated
- Aug 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20230627003079); may accept Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2020
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 295 in Wisconsin → Look up another NPI →
Also registered at 600 Highland Ave
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- Safiyya Abdulkadir, MDRheumatology Physician1093455826
- Edwin Abel, M.D.Urology Physician1083800510
Verify Emma Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 77577-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
153 Medicare Part D claims for 46 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Gabapentin16 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: $13.64
1 payment: food and beverage; the largest payer was Abiomed. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Emma Williams among 295 hematology & oncology physician records in Wisconsin
Emma Williams, MD is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 95% of them.
- NPI issued2020 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2020 · median 2004 among the 217 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Wisconsin
There are 295 hematology & oncology physician records in Wisconsin.
All 295 in Wisconsin → Every provider in Madison → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Sima Ehsani Chimeh, M.D.Madison, WI 537921699947002
- Zhubin Gahvari, M.D.Madison, WI 537921679816805
- Jacques Galipeau, MD FRCPMadison, WI 537921629307004
- Aric Hall, M.D.Madison, WI 537921538332804
- Vaishalee Kenkre, M.D.Madison, WI 537921386890978
- David Kosoff, M.D.Madison, WI 537921356608210
- Christos Kyriakopoulos, M.D.Madison, WI 537921336304211
- Sam Lubner, MDMadison, WI 537921003838145
Common questions
What is Emma Williams, MD's NPI number?
Emma Williams, MD's National Provider Identifier (NPI) is 1457972804, issued on Apr 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Emma Williams, MD located?
The NPPES record lists a practice address at 600 Highland Ave, Madison, WI, 53792. Phone: (608) 263-6400. Providers update this record themselves, so call before visiting.
How can I verify Emma Williams, MD's license?
NPPES lists Wisconsin license number 77577-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Emma Williams, MD prescribe under Medicare Part D?
In 2024, Emma Williams, MD had 153 Medicare Part D claims for 46 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.