Doctor profile · Federal record
Dr. Diana Guillaume, NP
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Chicago, IL
- NPI 1396037685
- Accepts Medicare
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4848 W Irving Park RD
Chicago, IL 606412718
(773) 724-6200
fax (773) 866-8015 - Mailing address
-
Po Box 746715
Atlanta, GA 303746715
Credentials & registration
- NPI registered
- May 2011 — 15 yrs on file
- Profile last updated
- June 6, 2025
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- Illinois #277.002106
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396037685. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
55
Distinct HCPCS
1
Medicare allowed
$2,771
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 55 | 27 | $50 |
In context: peer comparison
Among 43 peers in Chicago Adult Health Nurse Practitioner, average services per provider: 149. This provider delivers 0.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,548
Patients
1,235
Total drug cost
$48,169
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 844 | 276 | $10,442 |
| Metformin Hcl | Generic | 359 | 120 | $3,132 |
| Amlodipine Besylate | Generic | 277 | 94 | $1,356 |
| Lisinopril | Generic | 273 | 90 | $2,381 |
| Losartan Potassium | Generic | 198 | 67 | $2,346 |
| Rosuvastatin Calcium | Generic | 198 | 73 | $3,211 |
| Metoprolol Succinate | Generic | 195 | 63 | $3,929 |
| Levothyroxine Sodium | Generic | 183 | 58 | $3,632 |
| Enalapril Maleate | Generic | 179 | 57 | $3,644 |
| Omeprazole | Generic | 176 | 68 | $1,990 |
Frequently asked questions
What is Dr. Diana Guillaume's medical specialty?
Dr. Diana Guillaume practices Adult Health Nurse Practitioner in Chicago, IL.
Where does Dr. Diana Guillaume practice?
Dr. Diana Guillaume practices at 4848 W Irving Park RD, Chicago, IL 606412718. Office phone: 7737246200.
What is Dr. Diana Guillaume's NPI?
Dr. Diana Guillaume's National Provider Identifier (NPI) is 1396037685, issued by NPPES.
Does Dr. Diana Guillaume accept Medicare assignment?
Yes. Dr. Diana Guillaume accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Guillaume commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.