Doctor profile · Federal record
Dr. William Clark, MD
Family Medicine Physician (CMS: Hospice/Palliative Care) · Hospice and Palliative Medicine (Family Medicine) Physician · Family Medicine Physician · Iowa City, IA
- NPI 1083639140
- 49 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
200 Hawkins Dr
Iowa City, IA 522421009
(319) 384-7000
fax (319) 384-7822 - Mailing address
-
660 Walker Cir
Iowa City, IA 522454707
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 2, 2026
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- Iowa #23063 · Illinois #23063
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083639140. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
127
Distinct HCPCS
5
Medicare allowed
$12,177
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 52 | 37 | $74 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 31 | 31 | $121 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 16 | 13 | $111 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 15 | 12 | $46 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 13 | 13 | $162 |
In context: peer comparison
Among 19 peers in Iowa City Family Medicine Physician, average services per provider: 73. This provider delivers 1.7× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. William Clark's medical specialty?
Dr. William Clark practices Family Medicine Physician in Iowa City, IA.
Where does Dr. William Clark practice?
Dr. William Clark practices at 200 Hawkins Dr, Iowa City, IA 522421009. Office phone: 3193847000.
What is Dr. William Clark's NPI?
Dr. William Clark's National Provider Identifier (NPI) is 1083639140, issued by NPPES.
Does Dr. William Clark accept Medicare assignment?
Dr. William Clark does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. William Clark commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.