Total Payments
$1,489
2024 Payments
$376.77
Companies
15
Transactions
53
Medicare Patients
3,046
Medicare Billing
$1.3M
Payment Breakdown by Category
Food & Beverage$1,472 (98.9%)
Education$16.56 (1.1%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $1,472 | 52 | 98.9% |
| Education | $16.56 | 1 | 1.1% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | $295.11 | 9 | $0 (2024) |
| Amgen Inc. | $256.90 | 8 | $0 (2022) |
| Fresenius USA Marketing, Inc. | $199.47 | 9 | $0 (2024) |
| AKEBIA THERAPEUTICS INC | $163.50 | 5 | $0 (2024) |
| Ardelyx, Inc. | $120.21 | 1 | $0 (2024) |
| NxStage Medical, Inc. | $79.28 | 2 | $0 (2019) |
| OPKO Pharmaceuticals, LLC | $66.40 | 3 | $0 (2023) |
| Otsuka America Pharmaceutical, Inc. | $62.31 | 4 | $0 (2023) |
| Keryx Biopharmaceuticals, Inc. | $58.48 | 3 | $0 (2017) |
| Mallinckrodt LLC | $52.39 | 2 | $0 (2018) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $376.77 | 8 | AstraZeneca Pharmaceuticals LP ($147.52) |
| 2023 | $151.70 | 7 | AstraZeneca Pharmaceuticals LP ($65.00) |
| 2022 | $41.24 | 2 | OPKO Pharmaceuticals, LLC ($23.53) |
| 2021 | $135.63 | 3 | AKEBIA THERAPEUTICS INC ($116.24) |
| 2020 | $18.46 | 1 | AKEBIA THERAPEUTICS INC ($18.46) |
| 2019 | $308.17 | 14 | NxStage Medical, Inc. ($79.28) |
| 2018 | $332.11 | 11 | Amgen Inc. ($146.67) |
| 2017 | $124.50 | 7 | Keryx Biopharmaceuticals, Inc. ($58.48) |
All Payment Transactions
53 individual payment records from CMS Open Payments — Page 1 of 3
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 11/26/2024 | AKEBIA THERAPEUTICS INC | Vafseo (Drug) | Food and Beverage | In-kind items and services | $18.71 | General |
| Category: Nephrology | ||||||
| 10/08/2024 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $25.70 | General |
| 09/24/2024 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $29.68 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 07/09/2024 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $22.91 | General |
| 06/27/2024 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $117.84 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 05/23/2024 | Ardelyx, Inc. | XPHOZAH 30 MG (Drug) | Food and Beverage | In-kind items and services | $120.21 | General |
| Category: NEPHROLOGY | ||||||
| 03/22/2024 | Fresenius USA Marketing, Inc. | Velphoro (Drug) | Food and Beverage | In-kind items and services | $24.46 | General |
| Category: Phosphate binder for ESRD | ||||||
| 03/05/2024 | Boehringer Ingelheim Pharmaceuticals, Inc. | JARDIANCE (Drug) | Food and Beverage | In-kind items and services | $17.26 | General |
| Category: DIABETES | ||||||
| 12/06/2023 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $26.63 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 11/08/2023 | Fresenius USA Marketing, Inc. | Velphoro (Drug) | Food and Beverage | In-kind items and services | $21.40 | General |
| Category: Phosphate binder for ESRD | ||||||
| 08/02/2023 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $16.87 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 04/21/2023 | OPKO Pharmaceuticals, LLC | RAYALDEE (Drug) | Food and Beverage | In-kind items and services | $20.54 | General |
| Category: NEPHROLOGY | ||||||
| 02/07/2023 | Otsuka America Pharmaceutical, Inc. | JYNARQUE (Drug) | Food and Beverage | In-kind items and services | $22.43 | General |
| Category: NEPHROLOGY | ||||||
| 02/02/2023 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $21.50 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 01/16/2023 | OPKO Pharmaceuticals, LLC | RAYALDEE (Drug) | Food and Beverage | In-kind items and services | $22.33 | General |
| Category: NEPHROLOGY | ||||||
| 11/02/2022 | OPKO Pharmaceuticals, LLC | RAYALDEE (Drug) | Food and Beverage | In-kind items and services | $23.53 | General |
| Category: NEPHROLOGY | ||||||
| 09/07/2022 | Amgen Inc. | Parsabiv (Drug) | Food and Beverage | In-kind items and services | $17.71 | General |
| Category: Nephrology | ||||||
| 10/22/2021 | AKEBIA THERAPEUTICS INC | Auryxia (Drug) | Food and Beverage | In-kind items and services | $20.22 | General |
| Category: Nephrology | ||||||
| 10/12/2021 | AKEBIA THERAPEUTICS INC | — | Food and Beverage | In-kind items and services | $96.02 | General |
| 06/07/2021 | AstraZeneca Pharmaceuticals LP | LOKELMA (Drug) | Food and Beverage | In-kind items and services | $19.39 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 09/25/2020 | AKEBIA THERAPEUTICS INC | AURYXIA (Drug) | Food and Beverage | In-kind items and services | $18.46 | General |
| Category: NEPHROLOGY | ||||||
| 09/27/2019 | Fresenius USA Marketing, Inc. | — | Food and Beverage | In-kind items and services | $20.03 | General |
| 08/13/2019 | AstraZeneca Pharmaceuticals LP | LOKELMA (Drug) | Food and Beverage | In-kind items and services | $21.60 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 07/29/2019 | Fresenius USA Marketing, Inc. | — | Food and Beverage | In-kind items and services | $20.39 | General |
| 07/25/2019 | NxStage Medical, Inc. | SYSTEM ONE (Device) | Food and Beverage | In-kind items and services | $51.50 | General |
| Category: Nephrology | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 12 | 532 | 1,630 | $849,508 | $260,882 |
| 2022 | 12 | 700 | 2,019 | $645,203 | $305,541 |
| 2021 | 13 | 901 | 2,752 | $773,680 | $361,707 |
| 2020 | 14 | 913 | 3,127 | $859,842 | $342,614 |
Total Patients
3,046
Total Services
9,528
Medicare Billing
$1.3M
Procedure Codes
51
All Medicare Procedures & Services
51 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | Office | 2023 | 65 | 473 | $428,558 | $137,443 | 32.1% |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 117 | 397 | $81,782 | $26,246 | 32.1% |
| 90966 | Home dialysis services per month (20 years or older) | Office | 2023 | 14 | 91 | $68,523 | $22,033 | 32.2% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 80 | 187 | $57,783 | $18,593 | 32.2% |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | Office | 2023 | 18 | 55 | $41,470 | $13,331 | 32.1% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 71 | 80 | $36,080 | $11,589 | 32.1% |
| 90962 | Dialysis services, 1 physician visit per month (20 years or older) | Office | 2023 | 14 | 64 | $33,152 | $10,664 | 32.2% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 65 | 157 | $51,810 | $9,663 | 18.7% |
| 99291 | Critical care, first 30-74 minutes | Facility | 2023 | 17 | 22 | $15,774 | $3,971 | 25.2% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 27 | 48 | $22,224 | $3,377 | 15.2% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 24 | 24 | $8,160 | $2,624 | 32.2% |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Facility | 2023 | 20 | 32 | $4,192 | $1,348 | 32.2% |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | Office | 2022 | 60 | 477 | $286,200 | $141,027 | 49.3% |
| 99232 | Follow-up hospital inpatient care per day, typically 25 minutes | Facility | 2022 | 182 | 609 | $73,080 | $36,408 | 49.8% |
| 90966 | Home dialysis services per month (20 years or older) | Office | 2022 | 21 | 135 | $74,250 | $33,610 | 45.3% |
| 99233 | Follow-up hospital inpatient care per day, typically 35 minutes | Facility | 2022 | 128 | 277 | $48,475 | $23,442 | 48.4% |
| 99223 | Initial hospital inpatient care per day, typically 70 minutes | Facility | 2022 | 87 | 99 | $39,600 | $16,366 | 41.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 55 | 124 | $26,660 | $12,150 | 45.6% |
| 90962 | Dialysis services, 1 physician visit per month (20 years or older) | Office | 2022 | 19 | 71 | $28,258 | $11,660 | 41.3% |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | Office | 2022 | 22 | 38 | $19,000 | $9,128 | 48.0% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2022 | 28 | 54 | $14,850 | $8,233 | 55.4% |
| 99222 | Initial hospital inpatient care per day, typically 50 minutes | Facility | 2022 | 54 | 63 | $18,900 | $7,210 | 38.1% |
| 99291 | Critical care, first 30-74 minutes | Facility | 2022 | 18 | 27 | $12,555 | $4,830 | 38.5% |
| 99231 | Follow-up hospital inpatient care per day, typically 15 minutes | Facility | 2022 | 26 | 45 | $3,375 | $1,476 | 43.7% |
| 90960 | Dialysis services (4 or more physician visits per month), patient 20 years of age and older | Office | 2021 | 77 | 567 | $339,987 | $172,948 | 50.9% |
About Dr. Kareen Simpson, M.D
Dr. Kareen Simpson, M.D is a Nephrology healthcare provider based in Chicago, Illinois. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 01/16/2006. The National Provider Identifier (NPI) number assigned to this provider is 1780663963.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Kareen Simpson, M.D has received a total of $1,489 in payments from pharmaceutical and medical device companies, with $376.77 received in 2024. These payments were reported across 53 transactions from 15 companies. The most common payment nature is "Food and Beverage" ($1,472).
As a Medicare-enrolled provider, Simpson has provided services to 3,046 Medicare beneficiaries, totaling 9,528 services with total Medicare billing of $1.3M. Data is available for 4 years (2020–2023), covering 51 distinct procedure/service records.
Ad
Practice Information
- Specialty Nephrology
- Location Chicago, IL
- Active Since 01/16/2006
- Last Updated 11/22/2024
- Taxonomy Code 207RN0300X
- Entity Type Individual
- NPI Number 1780663963
Products in Payments
- Parsabiv (Biological) $225.69
- FARXIGA (Drug) $212.52
- XPHOZAH 30 MG (Drug) $120.21
- Velphoro (Drug) $89.44
- LOKELMA (Drug) $82.59
- SYSTEM ONE (Device) $79.28
- Auryxia (Drug) $78.70
- JYNARQUE (Drug) $67.88
- RAYALDEE (Drug) $66.40
- ACTHAR (Biological) $52.39
- Veltassa (Drug) $34.81
- AURYXIA (Drug) $28.55
- Not Product Related (Medical Supply) $25.05
- Dialyzers (Device) $21.43
- Vafseo (Drug) $18.71
- INJECTAFER (Drug) $17.78
- Parsabiv (Drug) $17.71
- JARDIANCE (Drug) $17.26
- Sensipar (Drug) $13.50
- SAMSCA (Drug) $10.50
Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.
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