Doctor profile · Federal record
Dr. Karen Zimmerman, M.D.
Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Arlington Heights, IL
- NPI 1457517054
- Accepts Medicare
- MIPS 89.7 / 100 · 2023
- 19 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
800 W Central RD
Arlington Heights, IL 600052349
(847) 618-5075
fax (847) 618-3259
Credentials & registration
- NPI registered
- August 2008 — 18 yrs on file
- Profile last updated
- May 11, 2021
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- Illinois #036126325
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457517054. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,236
Distinct HCPCS
6
Medicare allowed
$130,573
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 561 | 259 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 275 | 120 | $127 | |
99238 |
Hospital discharge day management, 30 minutes or less | 139 | 136 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 123 | 121 | $139 | |
99239 |
Hospital discharge day management, more than 30 minutes | 100 | 95 | $122 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 38 | 38 | $185 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 151. This provider delivers 8.2× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Karen Zimmerman's medical specialty?
Dr. Karen Zimmerman practices Hospitalist Physician in Arlington Heights, IL.
Where does Dr. Karen Zimmerman practice?
Dr. Karen Zimmerman practices at 800 W Central RD, Arlington Heights, IL 600052349. Office phone: 8476185075.
What is Dr. Karen Zimmerman's NPI?
Dr. Karen Zimmerman's National Provider Identifier (NPI) is 1457517054, issued by NPPES.
Does Dr. Karen Zimmerman accept Medicare assignment?
Yes. Dr. Karen Zimmerman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Zimmerman 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 99238). Source: CMS Medicare Physician & Other Practitioners file.