Doctor profile · Federal record
Dr. Emma Williams, MD
Hematology & Oncology Physician · Internal Medicine Physician · Hospitalist Physician · Student in an Organized Health Care Education/Training Program · Madison, WI
- NPI 1457972804
- 6 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
600 Highland Ave
Madison, WI 537920001
(608) 263-6400
Credentials & registration
- NPI registered
- April 2020 — 6 yrs on file
- Profile last updated
- August 27, 2025
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- Wisconsin #77577-20 · Wisconsin #77577
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457972804. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
249
Distinct HCPCS
4
Medicare allowed
$23,162
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 146 | 52 | $74 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 49 | 26 | $112 | |
99239 |
Hospital discharge day management, more than 30 minutes | 35 | 35 | $107 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 18 | $163 |
In context: peer comparison
Among 16 peers in Madison Hematology & Oncology Physician, average services per provider: 432. This provider delivers 0.6× the peer median.Open Payments
Industry payments received
All-time total
$14
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abiomed | 1 | $13.64 |
By nature of payment
Frequently asked questions
What is Dr. Emma Williams's medical specialty?
Dr. Emma Williams practices Hematology & Oncology Physician in Madison, WI.
Where does Dr. Emma Williams practice?
Dr. Emma Williams practices at 600 Highland Ave, Madison, WI 537920001. Office phone: 6082636400.
What is Dr. Emma Williams's NPI?
Dr. Emma Williams's National Provider Identifier (NPI) is 1457972804, issued by NPPES.
What procedures does Dr. Emma Williams commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.