Payment Breakdown by Category
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $1,745 | 62 | 65.6% |
| Travel and Lodging | $703.60 | 5 | 26.5% |
| Education | $211.25 | 6 | 7.9% |
| Unspecified | $0 | 1 | 0.0% |
Payments by Type
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | $1,142 | 14 | $0 (2024) |
| Vifor Pharma, Inc. | $179.33 | 9 | $0 (2024) |
| AKEBIA THERAPEUTICS INC | $174.73 | 4 | $0 (2024) |
| OPKO Pharmaceuticals, LLC | $131.57 | 4 | $0 (2023) |
| Otsuka America Pharmaceutical, Inc. | $125.54 | 4 | $0 (2024) |
| Amgen Inc. | $117.89 | 5 | $0 (2024) |
| GlaxoSmithKline, LLC. | $96.66 | 4 | $0 (2024) |
| Horizon Therapeutics plc | $84.30 | 3 | $0 (2022) |
| Aurinia Pharma U.S., Inc. | $78.60 | 3 | $0 (2024) |
| ANI Pharmaceuticals, Inc. | $70.15 | 2 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $340.74 | 14 | ANI Pharmaceuticals, Inc. ($70.15) |
| 2023 | $1,618 | 34 | Novartis Pharmaceuticals Corporation ($1,008) |
| 2022 | $256.75 | 10 | Horizon Therapeutics plc ($84.30) |
| 2020 | $60.76 | 3 | ARGON MEDICAL DEVICES, INC. ($28.32) |
| 2019 | $227.39 | 6 | AKEBIA THERAPEUTICS INC ($94.16) |
| 2018 | $68.96 | 3 | Otsuka America Pharmaceutical, Inc. ($24.49) |
| 2017 | $87.81 | 4 | Novartis Pharmaceuticals Corporation ($87.81) |
All Payment Transactions
74 individual payment records from CMS Open Payments — Page 1 of 3
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 11/07/2024 | ANI Pharmaceuticals, Inc. | PURIFIED CORTROPHIN GEL (Drug) | Food and Beverage | In-kind items and services | $42.06 | General |
| Category: Treatment of certain chronic autoimmune disorders including acute exacerbations of MS and RA | ||||||
| 11/07/2024 | Otsuka America Pharmaceutical, Inc. | JYNARQUE (Drug) | Food and Beverage | In-kind items and services | $21.70 | General |
| Category: NEPHROLOGY | ||||||
| 10/10/2024 | Novartis Pharmaceuticals Corporation | Fabhalta (Drug) | Food and Beverage | In-kind items and services | $26.39 | General |
| Category: Immunology | ||||||
| 10/08/2024 | Otsuka America Pharmaceutical, Inc. | JYNARQUE (Drug) | Food and Beverage | In-kind items and services | $18.15 | General |
| Category: NEPHROLOGY | ||||||
| 09/26/2024 | Amgen Inc. | TAVNEOS (Drug) | Food and Beverage | In-kind items and services | $21.26 | General |
| Category: Inflammation | ||||||
| 09/12/2024 | ANI Pharmaceuticals, Inc. | PURIFIED CORTROPHIN GEL (Drug) | Food and Beverage | In-kind items and services | $28.09 | General |
| Category: Treatment of certain chronic autoimmune disorders including acute exacerbations of MS and RA | ||||||
| 08/30/2024 | Amgen Inc. | Aranesp (Biological) | Food and Beverage | In-kind items and services | $27.62 | General |
| Category: Nephrology | ||||||
| 08/29/2024 | Aurinia Pharma U.S., Inc. | LUPKYNIS (Drug) | Food and Beverage | In-kind items and services | $25.59 | General |
| Category: LUPUS NEPHRITIS | ||||||
| 07/24/2024 | CorMedix Inc. | DefenCath (Drug) | Food and Beverage | In-kind items and services | $25.65 | General |
| Category: Catheter Lock Solution | ||||||
| 04/11/2024 | Vifor Pharma, Inc. | — | Food and Beverage | In-kind items and services | $21.36 | General |
| 03/14/2024 | AKEBIA THERAPEUTICS INC | Auryxia (Drug) | Food and Beverage | In-kind items and services | $31.41 | General |
| Category: Nephrology | ||||||
| 02/29/2024 | GlaxoSmithKline, LLC. | JESDUVROQ (Drug) | Food and Beverage | In-kind items and services | $27.42 | General |
| Category: NEPHROLOGY | ||||||
| 02/15/2024 | Aurinia Pharma U.S., Inc. | LUPKYNIS (Drug) | Food and Beverage | In-kind items and services | $24.04 | General |
| Category: LUPUS NEPHRITIS | ||||||
| 2024 | ExThera Medical Corporation | — | — | — | $0.00 | Ownership |
| 12/19/2023 | Fresenius USA Marketing, Inc. | Velphoro (Drug) | Food and Beverage | In-kind items and services | $18.41 | General |
| Category: Phosphate binder for ESRD | ||||||
| 12/18/2023 | Amgen Inc. | Aranesp (Biological), Parsabiv, TAVNEOS | Food and Beverage | In-kind items and services | $32.88 | General |
| Category: Nephrology | ||||||
| 12/08/2023 | AKEBIA THERAPEUTICS INC | Auryxia (Drug) | Food and Beverage | In-kind items and services | $29.33 | General |
| Category: Nephrology | ||||||
| 11/21/2023 | Fresenius USA Marketing, Inc. | Velphoro (Drug) | Food and Beverage | In-kind items and services | $15.79 | General |
| Category: Phosphate binder for ESRD | ||||||
| 11/07/2023 | Amgen Inc. | TAVNEOS (Drug) | Food and Beverage | In-kind items and services | $17.65 | General |
| Category: Inflammation | ||||||
| 10/26/2023 | GlaxoSmithKline, LLC. | JESDUVROQ (Drug) | Food and Beverage | In-kind items and services | $29.38 | General |
| Category: NEPHROLOGY | ||||||
| 10/24/2023 | Calliditas Therapeutics US Inc. | TARPEYO (Drug) | Food and Beverage | In-kind items and services | $24.00 | General |
| Category: Nephrology | ||||||
| 10/10/2023 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $15.78 | General |
| 09/26/2023 | Aurinia Pharma U.S., Inc. | LUPKYNIS (Drug) | Food and Beverage | In-kind items and services | $28.97 | General |
| Category: LUPUS NEPHRITIS | ||||||
| 09/15/2023 | NOVARTIS PHARMACEUTICALS CORPORATION | — | Travel and Lodging | In-kind items and services | $289.97 | General |
| 09/15/2023 | NOVARTIS PHARMACEUTICALS CORPORATION | — | Food and Beverage | In-kind items and services | $201.99 | General |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 12 | 1,089 | 2,120 | $398,903 | $218,776 |
| 2022 | 13 | 1,263 | 2,530 | $514,730 | $293,542 |
| 2021 | 17 | 1,373 | 3,268 | $585,923 | $349,768 |
| 2020 | 37 | 2,170 | 21,017 | $1.5M | $815,094 |
All Medicare Procedures & Services
79 procedure records from CMS Medicare Utilization — Page 1 of 4
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 359 | 969 | $96,900 | $65,096 | 67.2% |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | Office | 2023 | 37 | 230 | $115,046 | $64,726 | 56.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 299 | 461 | $80,675 | $32,476 | 40.3% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 109 | 109 | $29,975 | $15,854 | 52.9% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 63 | 63 | $17,325 | $7,987 | 46.1% |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | Office | 2023 | 19 | 33 | $13,207 | $7,621 | 57.7% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 49 | 67 | $10,050 | $6,838 | 68.0% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 55 | 60 | $11,100 | $6,700 | 60.4% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2023 | 29 | 29 | $8,700 | $5,375 | 61.8% |
| 90935 | Hemodialysis procedure with physician evaluation | Facility | 2023 | 40 | 67 | $10,050 | $4,029 | 40.1% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 17 | 17 | $2,125 | $1,135 | 53.4% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 13 | 15 | $3,750 | $938.96 | 25.0% |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | Office | 2022 | 52 | 293 | $146,559 | $85,446 | 58.3% |
| 99232 | Follow-up hospital inpatient care per day, typically 25 minutes | Facility | 2022 | 467 | 1,156 | $115,600 | $70,326 | 60.8% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 307 | 451 | $78,925 | $44,853 | 56.8% |
| 90966 | Home dialysis services per month (20 years or older) | Office | 2022 | 14 | 115 | $57,523 | $28,627 | 49.8% |
| 99223 | Initial hospital inpatient care per day, typically 70 minutes | Facility | 2022 | 125 | 126 | $34,650 | $21,165 | 61.1% |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | Office | 2022 | 22 | 43 | $17,209 | $10,293 | 59.8% |
| 90935 | Hemodialysis procedure with physician evaluation | Facility | 2022 | 79 | 131 | $19,650 | $8,186 | 41.7% |
| 99233 | Follow-up hospital inpatient care per day, typically 35 minutes | Facility | 2022 | 58 | 70 | $10,500 | $6,119 | 58.3% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 42 | 42 | $11,550 | $4,819 | 41.7% |
| 99222 | Initial hospital inpatient care per day, typically 50 minutes | Facility | 2022 | 39 | 39 | $7,215 | $4,546 | 63.0% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2022 | 24 | 28 | $7,000 | $4,126 | 58.9% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2022 | 22 | 22 | $6,600 | $4,059 | 61.5% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 12 | 14 | $1,750 | $975.66 | 55.8% |
About Dr. Gregory Wang, MD
Dr. Gregory Wang, MD is a Nephrology healthcare provider based in Fairfax, Virginia. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 01/07/2008. The National Provider Identifier (NPI) number assigned to this provider is 1871778068.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Gregory Wang, MD has received a total of $2,660 in payments from pharmaceutical and medical device companies, with $340.74 received in 2024. These payments were reported across 74 transactions from 26 companies. The most common payment nature is "Food and Beverage" ($1,745).
As a Medicare-enrolled provider, Wang has provided services to 5,895 Medicare beneficiaries, totaling 28,935 services with total Medicare billing of $1.7M. Data is available for 4 years (2020–2023), covering 79 distinct procedure/service records.
Practice Information
- Specialty Nephrology
- Location Fairfax, VA
- Active Since 01/07/2008
- Last Updated 08/11/2016
- Taxonomy Code 207RN0300X
- Entity Type Individual
- NPI Number 1871778068
Products in Payments
- Veltassa (Drug) $157.97
- RAYALDEE (Drug) $131.57
- Auryxia (Drug) $103.84
- AURYXIA (Drug) $94.16
- AFINITOR (Drug) $92.97
- SAMSCA (Drug) $85.69
- KRYSTEXXA (Biological) $84.30
- LUPKYNIS (Drug) $78.60
- PURIFIED CORTROPHIN GEL (Drug) $70.15
- TARPEYO (Drug) $63.49
- ACTHAR (Biological) $61.76
- Aranesp (Biological) $60.50
- TAVNEOS (Drug) $57.39
- JESDUVROQ (Drug) $56.80
- BENLYSTA (Biological) $39.86
- JYNARQUE (Drug) $39.85
- Velphoro (Drug) $34.20
- FABRAZYME (Biological) $28.48
- Cleaner (Device) $28.32
- Fabhalta (Drug) $26.39
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.
Nephrology Doctors in Fairfax
Dr. Ali Assefi, Md, MD
Nephrology — Payments: $83,004
Dr. Renuka Sothinathan, M.d, M.D
Nephrology — Payments: $54,246
Dr. Kinjal Patel, M.d, M.D
Nephrology — Payments: $50,455
Dr. Paul Modlinger, M.d, M.D
Nephrology — Payments: $44,408
Dr. Magnus Ikhinmwin, Md, MD
Nephrology — Payments: $11,627
Dr. Renu Regunathan-Shenk, Md, MD
Nephrology — Payments: $5,403