Doctor profile · Federal record

Dr. Eliot Williams, MD PHD

Hematology (Internal Medicine) Physician (CMS: Hematology) · Madison, WI

  • NPI 1265493175
  • Accepts Medicare
  • 50 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
600 Highland Ave
Madison, WI 53792
(608) 265-1700
fax (608) 262-1982
Mailing address
7974 Uw Health CT
Middleton, WI 535625531

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
April 10, 2009
Year of graduation
1976 — 50 yrs since
Specialty taxonomy
207RH0000X — NUCC code
State license (1)
Wisconsin #20949

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265493175. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
371
Distinct HCPCS
7
Medicare allowed
$18,774
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 124 22 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 81 40 $92
99213 Established patient office or other outpatient visit, 20-29 minutes 62 54 $62
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test 58 13 $6
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 19 19 $122
99204 New patient office or other outpatient visit, 45-59 minutes 16 16 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 11 11 $163

In context: peer comparison

Among 4 peers in this city , average services per provider: 41. This provider delivers 9.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
279
Patients
16
Total drug cost
$458,106
Drug Type Claims Patients Total cost
Hydroxyurea Generic 68 16 $1,412
Prednisone Generic 45 0 $388
Mycophenolate Mofetil Generic 43 0 $2,352
Acyclovir Generic 36 0 $804
Promacta (Eltrombopag Olamine) Brand 22 0 $363,223
Aranesp (Darbepoetin Alfa In Polysorbat) Brand 21 0 $56,615
Eliquis (Apixaban) Brand 19 0 $24,774
Sirolimus Generic 13 0 $8,461
Clopidogrel (Clopidogrel Bisulfate) Brand 12 0 $78

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Eliot Williams's medical specialty?
Dr. Eliot Williams practices Hematology (Internal Medicine) Physician in Madison, WI.
Where does Dr. Eliot Williams practice?
Dr. Eliot Williams practices at 600 Highland Ave, Madison, WI 53792. Office phone: 6082651700.
What is Dr. Eliot Williams's NPI?
Dr. Eliot Williams's National Provider Identifier (NPI) is 1265493175, issued by NPPES.
Does Dr. Eliot Williams accept Medicare assignment?
Yes. Dr. Eliot Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eliot Williams commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.