Doctor profile · Federal record
Dr. Nancy Stewart, D.O.
Internal Medicine Physician (CMS: Sleep Medicine) · Oak Park, IL
- NPI 1093957680
- Accepts Medicare
- MIPS 87.6 / 100 · 2023
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3 Erie Court, West Suburban Medical Center
Oak Park, IL 60302
(708) 763-1447 - Mailing address
-
212 W Washington St Apt 1203
Chicago, IL 606063428
Credentials & registration
- NPI registered
- March 2009 — 17 yrs on file
- Profile last updated
- July 31, 2012
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036128853
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093957680. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
590
Distinct HCPCS
10
Medicare allowed
$53,411
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95800 |
Sleep study including heart rate, breathing, and sleep time | 150 | 149 | $39 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 111 | 97 | $92 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 85 | 85 | $125 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 71 | 66 | $92 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 57 | 57 | $125 | |
95811 |
Sleep study in sleep lab with continuous airway pressure (6 years or older) | 49 | 47 | $118 | |
95810 |
Sleep study in sleep lab (6 years or older) | 23 | 23 | $113 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 17 | 13 | $136 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 14 | 13 | $136 | |
95806 |
Sleep study including heart rate, breathing, airflow, and effort | 13 | 13 | $42 |
In context: peer comparison
Among 19 peers in Oak Park Internal Medicine Physician, average services per provider: 82. This provider delivers 7.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
25
Patients
0
Total drug cost
$10,602
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Varenicline Tartrate | Generic | 13 | 0 | $4,080 |
| Spiriva Handihaler (Tiotropium Bromide) | Brand | 12 | 0 | $6,522 |
Hospital affiliations
Frequently asked questions
What is Dr. Nancy Stewart's medical specialty?
Dr. Nancy Stewart practices Internal Medicine Physician in Oak Park, IL.
Where does Dr. Nancy Stewart practice?
Dr. Nancy Stewart practices at 3 Erie Court, Oak Park, IL 60302. Office phone: 7087631447.
What is Dr. Nancy Stewart's NPI?
Dr. Nancy Stewart's National Provider Identifier (NPI) is 1093957680, issued by NPPES.
Does Dr. Nancy Stewart accept Medicare assignment?
Yes. Dr. Nancy Stewart accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nancy Stewart commonly perform?
Top Medicare-reported procedures in 2023: Sleep study including heart rate, breathing, and sleep time (HCPCS 95800); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.