Nurse Practitioner, Adult Health · Chicago, IL
NPI
1942842505
Since 2019
Specialty
Nurse Practitioner, Adult Health
Code 363LA2200X
Group practices
1
Medicare group memberships
Hospitals
4
Hospital affiliations
675 N Saint Clair St Fl 21
Chicago, IL, 60611
Phone (312) 695-0990
Groups this clinician bills Medicare through
Medicare paid, 2024
$4,399
90 services
Medicare patients, 2024
33
Average age 77
Drug cost, 2024
$9.5M
926 prescriptions
Company payments, 2025
$9,048
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Jennifer B Greenfield was code 99214 (office e&m - established), 15 times for 15 patients. In total Jennifer B Greenfield billed 90 services in 15 codes, and Medicare paid $4,399.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2023-08-31.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 15 | 15 | $74.31 | $1,115 |
By year: 2022 $11K for 137 services; 2023 $7,809 for 107 services; 2024 $4,399 for 90 services.
Lab tests billed to Medicare, 2023
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 19 | 12 | $8.40 | $160 |
Medicare prescription drug claims, 2024
In 2024, the drug Jennifer B Greenfield prescribed most often to Medicare patients was Brukinsa (Zanubrutinib), with 321 prescriptions and refills. In total Jennifer B Greenfield wrote 926 Medicare prescriptions that cost $9.5M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Brukinsa Zanubrutinib | 321 | 323 | 36 | $4.7M |
| Calquence Acalabrutinib Maleate | 173 | 173 | 20 | $2.6M |
| Acyclovir Generic | 152 | 400 | 45 | $2,175 |
| Venclexta Venetoclax | 59 | 62 | 12 | $806K |
| Imbruvica Ibrutinib | 56 | 56 | Under 11 | $916K |
| Allopurinol Generic | 42 | 85 | 15 | $393 |
| Folic Acid Generic | 21 | 43 | Under 11 | $249 |
| Cyclosporine Modified Cyclosporine, Modified | 14 | 14 | Under 11 | $821 |
| Revlimid Lenalidomide | 14 | 14 | Under 11 | $277K |
Brand drugs: 647 claims; generic drugs: 279 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Jennifer B Greenfield $9,048 ($9,048 in general payments such as food, travel and fees) from 2 companies. The largest payer was AstraZeneca Pharmaceuticals LP with $9,019.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.