Inactive Provider
This provider's NPI has been deactivated on 05/07/2026. The information on this page is historical and may no longer be current.
Total Payments
$898.98
2024 Payments
$85.00
Companies
19
Transactions
40
Medicare Patients
681
Medicare Billing
$74,986
Payment Breakdown by Category
Food & Beverage$718.17 (79.9%)
Education$180.81 (20.1%)
Other$0.00 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $718.17 | 34 | 79.9% |
| Education | $180.81 | 6 | 20.1% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| PFIZER INC. | $175.48 | 9 | $0 (2019) |
| Janssen Biotech, Inc. | $138.90 | 5 | $0 (2020) |
| Novartis Pharmaceuticals Corporation | $90.95 | 4 | $0 (2019) |
| Alexion Pharmaceuticals, Inc. | $85.00 | 1 | $0 (2024) |
| EUSA Pharma (US) LLC | $61.77 | 1 | $0 (2019) |
| Amgen Inc. | $52.62 | 3 | $0 (2021) |
| Daiichi Sankyo Inc. | $44.15 | 3 | $0 (2017) |
| Bayer HealthCare Pharmaceuticals Inc. | $32.83 | 2 | $0 (2018) |
| Apellis Pharmaceuticals, Inc. | $30.29 | 1 | $0 (2023) |
| Seattle Genetics, Inc. | $25.14 | 2 | $0 (2018) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $85.00 | 1 | Alexion Pharmaceuticals, Inc. ($85.00) |
| 2023 | $30.29 | 1 | Apellis Pharmaceuticals, Inc. ($30.29) |
| 2021 | $13.13 | 1 | Amgen Inc. ($13.13) |
| 2020 | $41.76 | 2 | Janssen Biotech, Inc. ($22.80) |
| 2019 | $333.96 | 13 | Novartis Pharmaceuticals Corporation ($90.95) |
| 2018 | $148.65 | 8 | PFIZER INC. ($77.76) |
| 2017 | $246.19 | 14 | PFIZER INC. ($69.56) |
All Payment Transactions
40 individual payment records from CMS Open Payments — Page 1 of 2
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 06/24/2024 | Alexion Pharmaceuticals, Inc. | SOLIRIS (Biological) | Education | In-kind items and services | $85.00 | General |
| Category: Rare Disease | ||||||
| 03/22/2023 | Apellis Pharmaceuticals, Inc. | Empaveli (Drug) | Education | Cash or cash equivalent | $30.29 | General |
| Category: Hematology | ||||||
| 04/23/2021 | Amgen Inc. | — | Education | In-kind items and services | $13.13 | General |
| 03/07/2020 | Janssen Biotech, Inc. | DARZALEX (Biological), DARZALEX | Food and Beverage | In-kind items and services | $22.80 | General |
| Category: Oncology | ||||||
| 03/06/2020 | Amgen Inc. | Neulasta (Biological) | Food and Beverage | In-kind items and services | $18.96 | General |
| Category: Oncology | ||||||
| 12/13/2019 | Janssen Biotech, Inc. | DARZALEX (Biological) | Food and Beverage | In-kind items and services | $32.88 | General |
| Category: Oncology | ||||||
| 12/08/2019 | EUSA Pharma (US) LLC | Sylvant (Biological) | Food and Beverage | In-kind items and services | $61.77 | General |
| Category: Hematology Oncology | ||||||
| 11/06/2019 | Janssen Biotech, Inc. | DARZALEX (Biological) | Food and Beverage | In-kind items and services | $32.06 | General |
| Category: Oncology | ||||||
| 11/06/2019 | Novartis Pharmaceuticals Corporation | TASIGNA (Drug) | Food and Beverage | In-kind items and services | $21.31 | General |
| Category: HEMATOLOGY | ||||||
| 08/13/2019 | Amgen Inc. | Prolia (Biological), XGEVA | Food and Beverage | In-kind items and services | $20.53 | General |
| Category: Bone Health | ||||||
| 08/09/2019 | AstraZeneca Pharmaceuticals LP | IMFINZI (Drug) | Food and Beverage | In-kind items and services | $15.83 | General |
| Category: Oncology | ||||||
| 08/07/2019 | Novartis Pharmaceuticals Corporation | PROMACTA (Drug), TASIGNA | Food and Beverage | In-kind items and services | $24.38 | General |
| Category: ONCOLOGY | ||||||
| 06/21/2019 | Rigel Pharmaceuticals, Inc. | Tavalisse (Drug) | Food and Beverage | In-kind items and services | $18.62 | General |
| Category: Hematology | ||||||
| 05/01/2019 | Novartis Pharmaceuticals Corporation | PROMACTA (Drug), TASIGNA | Food and Beverage | In-kind items and services | $22.20 | General |
| Category: ONCOLOGY | ||||||
| 02/06/2019 | Novartis Pharmaceuticals Corporation | TASIGNA (Drug) | Food and Beverage | In-kind items and services | $23.06 | General |
| Category: HEMATOLOGY | ||||||
| 02/01/2019 | Lilly USA, LLC | CYRAMZA (Drug), VERZENIO | Food and Beverage | In-kind items and services | $14.37 | General |
| Category: Oncology | ||||||
| 01/18/2019 | PFIZER INC. | MYLOTARG (Biological), BOSULIF, BESPONSA | Food and Beverage | In-kind items and services | $28.16 | General |
| Category: ONCOLOGY | ||||||
| 01/03/2019 | GlaxoSmithKline, LLC. | ANORO (Drug) | Food and Beverage | In-kind items and services | $18.79 | General |
| Category: RESPIRATORY | ||||||
| 12/19/2018 | Seattle Genetics, Inc. | ADCETRIS (Biological) | Food and Beverage | In-kind items and services | $12.85 | General |
| Category: Oncology | ||||||
| 08/31/2018 | Bayer HealthCare Pharmaceuticals Inc. | Aliqopa (Drug) | Food and Beverage | In-kind items and services | $17.45 | General |
| Category: Oncology | ||||||
| 08/22/2018 | Janssen Biotech, Inc. | DARZALEX (Biological) | Food and Beverage | In-kind items and services | $28.30 | General |
| Category: Oncology | ||||||
| 07/19/2018 | PFIZER INC. | MYLOTARG (Biological), BOSULIF, BESPONSA | Food and Beverage | In-kind items and services | $20.97 | General |
| Category: ONCOLOGY | ||||||
| 06/04/2018 | PFIZER INC. | MYLOTARG (Biological) | Education | In-kind items and services | $20.05 | General |
| Category: ONCOLOGY | ||||||
| 05/02/2018 | Seattle Genetics, Inc. | ADCETRIS (Biological) | Education | In-kind items and services | $12.29 | General |
| Category: Oncology | ||||||
| 04/23/2018 | PFIZER INC. | MYLOTARG (Biological) | Education | In-kind items and services | $20.05 | General |
| Category: ONCOLOGY | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 4 | 172 | 265 | $74,286 | $18,981 |
| 2022 | 2 | 167 | 247 | $69,673 | $18,455 |
| 2021 | 2 | 161 | 274 | $73,708 | $20,453 |
| 2020 | 3 | 181 | 279 | $67,767 | $17,097 |
Total Patients
681
Total Services
1,065
Medicare Billing
$74,986
Procedure Codes
15
All Medicare Procedures & Services
15 procedure records from CMS Medicare Utilization
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2023 | 67 | 123 | $33,210 | $8,186 | 24.6% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 61 | 93 | $25,194 | $6,519 | 25.9% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Facility | 2023 | 20 | 20 | $7,380 | $2,033 | 27.5% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 13 | 15 | $5,940 | $1,536 | 25.9% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 11 | 14 | $2,562 | $708.37 | 27.6% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2022 | 71 | 118 | $32,096 | $8,505 | 26.5% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 79 | 110 | $29,920 | $7,655 | 25.6% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2022 | 17 | 19 | $7,657 | $2,295 | 30.0% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Facility | 2021 | 72 | 139 | $36,696 | $10,165 | 27.7% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 75 | 121 | $31,944 | $8,832 | 27.6% |
| 99204 | New patient outpatient visit, total time 45-59 minutes | Facility | 2021 | 14 | 14 | $5,068 | $1,457 | 28.7% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Facility | 2020 | 72 | 124 | $28,024 | $6,957 | 24.8% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Office | 2020 | 71 | 112 | $25,312 | $6,340 | 25.0% |
| 99215 | Established patient office or other outpatient, visit typically 40 minutes | Facility | 2020 | 24 | 29 | $9,251 | $2,456 | 26.6% |
| 99204 | New patient office or other outpatient visit, typically 45 minutes | Facility | 2020 | 14 | 14 | $5,180 | $1,344 | 26.0% |
About Dr. Mark Udden, MD
Dr. Mark Udden, MD is a Hematology healthcare provider based in Houston, Texas. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 10/17/2006. The National Provider Identifier (NPI) number assigned to this provider is 1235219577.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Mark Udden, MD has received a total of $898.98 in payments from pharmaceutical and medical device companies, with $85.00 received in 2024. These payments were reported across 40 transactions from 19 companies. The most common payment nature is "Food and Beverage" ($718.17).
As a Medicare-enrolled provider, Udden has provided services to 681 Medicare beneficiaries, totaling 1,065 services with total Medicare billing of $74,986. Data is available for 4 years (2020–2023), covering 15 distinct procedure/service records.
Ad
Practice Information
- Specialty Hematology
- Location Houston, TX
- Active Since 10/17/2006
- Last Updated 10/31/2024
- Taxonomy Code 207RH0000X
- Entity Type Individual
- NPI Number 1235219577
Products in Payments
- DARZALEX (Biological) $116.04
- MYLOTARG (Biological) $105.92
- SOLIRIS (Biological) $85.00
- Sylvant (Biological) $61.77
- PROMACTA (Drug) $46.58
- TASIGNA (Drug) $44.37
- INJECTAFER (Drug) $44.15
- Empaveli (Drug) $30.29
- ADCETRIS (Biological) $25.14
- IMBRUVICA (Drug) $22.86
- Halaven (Drug) $22.18
- Revlimid (Drug) $21.78
- MYLOTARG (Drug) $20.60
- Prolia (Biological) $20.53
- Neulasta (Biological) $18.96
- ANORO (Drug) $18.79
- Tavalisse (Drug) $18.62
- SUTENT (Drug) $18.38
- OPDIVO (Biological) $17.97
- Aliqopa (Drug) $17.45
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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