Doctor profile · Federal record
Dr. Clarrisa Hamann, APN-CNP
Nurse Practitioner · Registered Nurse · Highland Park, IL
- NPI 1255542718
- Accepts Medicare
- MIPS 90.4 / 100 · 2023
- 25 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
777 Park Ave. West
Highland Park, IL 60035
(847) 480-3956
fax (847) 480-2861 - Additional location
-
2151 Waukegan RD, Suite 100
Bannockburn, IL 600151885
(847) 444-5300
fax (847) 267-1429
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- June 18, 2019
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State licenses (2)
- Illinois #209-004281 · Illinois #041271088
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255542718. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
425
Distinct HCPCS
5
Medicare allowed
$44,223
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 261 | 219 | $129 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 75 | 72 | $88 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 50 | 39 | $28 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 24 | 22 | $72 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 15 | 13 | $46 |
In context: peer comparison
Among 7 peers in Highland Park Nurse Practitioner, average services per provider: 48. This provider delivers 8.9× the peer median.Open Payments
Industry payments received
All-time total
$2,053
Transactions
57
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, INC. | 14 | $640.50 | |
| Novartis Pharmaceuticals Corporation | 14 | $372.48 | |
| Amgen INC. | 5 | $323.30 | |
| Kiniksa Pharmaceuticals International, Plc | 5 | $153.75 | |
| Novo Nordisk INC | 6 | $129.18 | |
| Medtronic, INC. | 1 | $120.54 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $67.63 | |
| Abbott Laboratories | 1 | $63.82 | |
| Merck Sharp & Dohme LLC | 2 | $56.29 | |
| Zoll Services LLC (A/K/A Zoll LifeCor Corp) | 3 | $50.78 | |
| Pfizer INC. | 1 | $32.26 | |
| Lantheus Medical Imaging, INC. | 1 | $23.82 | |
| Janssen Pharmaceuticals, INC | 1 | $18.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,337
Patients
565
Total drug cost
$317,801
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 233 | 100 | $4,590 |
| Eliquis (Apixaban) | Brand | 177 | 46 | $152,517 |
| Atorvastatin Calcium | Generic | 146 | 71 | $2,995 |
| Amlodipine Besylate | Generic | 120 | 58 | $1,516 |
| Furosemide | Generic | 107 | 56 | $784 |
| Carvedilol | Generic | 100 | 48 | $1,399 |
| Spironolactone | Generic | 94 | 45 | $960 |
| Jardiance (Empagliflozin) | Brand | 88 | 25 | $94,214 |
| Lisinopril | Generic | 60 | 32 | $864 |
| Entresto (Sacubitril/Valsartan) | Brand | 54 | 14 | $53,591 |
Hospital affiliations
Frequently asked questions
What is Dr. Clarrisa Hamann's medical specialty?
Dr. Clarrisa Hamann practices Nurse Practitioner in Highland Park, IL.
Where does Dr. Clarrisa Hamann practice?
Dr. Clarrisa Hamann practices at 777 Park Ave. West, Highland Park, IL 60035. Office phone: 8474803956.
What is Dr. Clarrisa Hamann's NPI?
Dr. Clarrisa Hamann's National Provider Identifier (NPI) is 1255542718, issued by NPPES.
Does Dr. Clarrisa Hamann accept Medicare assignment?
Yes. Dr. Clarrisa Hamann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clarrisa Hamann commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.