Total Payments
$9,650
2024 Payments
$48.36
Companies
37
Transactions
290
Medicare Patients
4,259
Medicare Billing
$732,335
Payment Breakdown by Category
Food & Beverage$4,818 (49.9%)
Other$2,500 (25.9%)
Consulting$1,995 (20.7%)
Education$336.75 (3.5%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $4,818 | 265 | 49.9% |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $2,500 | 2 | 25.9% |
| Consulting Fee | $1,995 | 1 | 20.7% |
| Education | $336.75 | 22 | 3.5% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Eisai Inc. | $4,495 | 3 | $0 (2021) |
| PFIZER INC. | $618.88 | 43 | $0 (2023) |
| Amgen Inc. | $493.93 | 20 | $0 (2018) |
| E.R. Squibb & Sons, L.L.C. | $463.93 | 32 | $0 (2018) |
| Genentech USA, Inc. | $317.30 | 19 | $0 (2018) |
| Millennium Pharmaceuticals, Inc. | $303.96 | 9 | $0 (2017) |
| AstraZeneca Pharmaceuticals LP | $246.04 | 14 | $0 (2018) |
| INSYS Therapeutics Inc | $213.64 | 11 | $0 (2018) |
| Incyte Corporation | $189.64 | 10 | $0 (2017) |
| Merck Sharp & Dohme LLC | $184.82 | 10 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $48.36 | 3 | Merck Sharp & Dohme LLC ($18.09) |
| 2023 | $102.27 | 6 | PFIZER INC. ($46.74) |
| 2022 | $133.36 | 6 | PFIZER INC. ($63.98) |
| 2021 | $2,620 | 11 | Eisai Inc. ($2,500) |
| 2020 | $1,995 | 1 | Eisai Inc. ($1,995) |
| 2019 | $73.05 | 4 | Allergan Inc. ($52.67) |
| 2018 | $608.77 | 28 | Takeda Pharmaceuticals U.S.A., Inc. ($119.08) |
| 2017 | $4,069 | 231 | E.R. Squibb & Sons, L.L.C. ($446.39) |
All Payment Transactions
290 individual payment records from CMS Open Payments — Page 1 of 12
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/23/2024 | Merck Sharp & Dohme LLC | WELIREG (Drug) | Education | In-kind items and services | $18.09 | General |
| Category: ONCOLOGY | ||||||
| 05/29/2024 | Agios Pharmaceuticals, Inc. | PYRUKYND (Drug) | Education | In-kind items and services | $16.53 | General |
| Category: Genetically Defined Disease | ||||||
| 02/14/2024 | BeiGene USA, Inc. | BRUKINSA (Drug) | Food and Beverage | In-kind items and services | $13.74 | General |
| Category: Oncology | ||||||
| 10/03/2023 | BeiGene USA, Inc. | BRUKINSA (Drug) | Food and Beverage | In-kind items and services | $20.91 | General |
| Category: Oncology | ||||||
| 04/21/2023 | Boston Scientific Corporation | WaveWriter Alpha Prime 16 (Device) | Food and Beverage | In-kind items and services | $19.62 | General |
| Category: WaveWriter Alpha_NMD | ||||||
| 03/02/2023 | PFIZER INC. | LORBRENA (Drug) | Education | In-kind items and services | $15.50 | General |
| Category: ONCOLOGY | ||||||
| 02/07/2023 | Boston Scientific Corporation | LUX-Dx Insertable Cardiac Monitor (Device) | Food and Beverage | In-kind items and services | $15.00 | General |
| Category: LUX-Dx_CRM | ||||||
| 02/04/2023 | PFIZER INC. | IBRANCE (Drug), PAXLOVID | Food and Beverage | In-kind items and services | $17.90 | General |
| Category: ONCOLOGY | ||||||
| 01/06/2023 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $13.34 | General |
| Category: ONCOLOGY | ||||||
| 11/08/2022 | Takeda Pharmaceuticals U.S.A., Inc. | ICLUSIG (Drug) | Education | In-kind items and services | $32.75 | General |
| Category: ONCOLOGY | ||||||
| 09/30/2022 | PFIZER INC. | IBRANCE (Drug) | Food and Beverage | In-kind items and services | $25.12 | General |
| Category: ONCOLOGY | ||||||
| 08/11/2022 | Myriad Genetic Laboratories, Inc. | myRisk (Device) | Food and Beverage | Cash or cash equivalent | $17.50 | General |
| Category: Germline DNA Sequencing Hereditary Cancer and Rearrangement Analysis | ||||||
| 03/31/2022 | GlaxoSmithKline, LLC. | TRELEGY ELLIPTA (Drug) | Food and Beverage | In-kind items and services | $19.13 | General |
| Category: RESPIRATORY | ||||||
| 01/14/2022 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $13.34 | General |
| Category: ONCOLOGY | ||||||
| 01/07/2022 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $25.52 | General |
| Category: ONCOLOGY | ||||||
| 12/09/2021 | PFIZER INC. | INLYTA (Drug), BAVENCIO, LORBRENA | Food and Beverage | In-kind items and services | $23.34 | General |
| Category: ONCOLOGY | ||||||
| 11/18/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $25.52 | General |
| Category: ONCOLOGY | ||||||
| 10/22/2021 | Eisai Inc. | Lenvima (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $1,500.00 | General |
| Category: Oncology | ||||||
| 10/21/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $7.60 | General |
| Category: ONCOLOGY | ||||||
| 08/11/2021 | Eisai Inc. | Lenvima (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $1,000.00 | General |
| Category: Oncology | ||||||
| 07/21/2021 | PFIZER INC. | INLYTA (Drug) | Food and Beverage | In-kind items and services | $22.82 | General |
| Category: ONCOLOGY | ||||||
| 07/19/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $8.16 | General |
| Category: ONCOLOGY | ||||||
| 07/12/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $8.20 | General |
| Category: ONCOLOGY | ||||||
| 07/09/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $8.16 | General |
| Category: ONCOLOGY | ||||||
| 04/21/2021 | PFIZER INC. | INLYTA (Drug) | Education | In-kind items and services | $8.16 | General |
| Category: ONCOLOGY | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 8 | 869 | 1,397 | $518,360 | $92,679 |
| 2022 | 9 | 1,123 | 2,279 | $970,360 | $187,407 |
| 2021 | 9 | 1,117 | 2,561 | $1.2M | $241,754 |
| 2020 | 11 | 1,150 | 2,780 | $1.1M | $210,496 |
Total Patients
4,259
Total Services
9,017
Medicare Billing
$732,335
Procedure Codes
37
All Medicare Procedures & Services
37 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 337 | 659 | $263,600 | $46,346 | 17.6% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 98 | 151 | $80,785 | $17,096 | 21.2% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2023 | 68 | 68 | $51,000 | $9,802 | 19.2% |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | Office | 2023 | 205 | 326 | $55,420 | $8,644 | 15.6% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 62 | 62 | $37,200 | $6,196 | 16.7% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 42 | 47 | $12,925 | $1,941 | 15.0% |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | Office | 2023 | 27 | 30 | $8,250 | $1,344 | 16.3% |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | Office | 2023 | 30 | 54 | $9,180 | $1,310 | 14.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 425 | 1,225 | $490,000 | $91,987 | 18.8% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2022 | 217 | 492 | $263,220 | $56,913 | 21.6% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2022 | 88 | 88 | $66,000 | $12,281 | 18.6% |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | Office | 2022 | 123 | 155 | $62,000 | $9,836 | 15.9% |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | Office | 2022 | 95 | 109 | $29,975 | $5,671 | 18.9% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 47 | 47 | $28,200 | $5,147 | 18.3% |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | Office | 2022 | 66 | 78 | $13,260 | $2,314 | 17.5% |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | Office | 2022 | 35 | 54 | $9,180 | $1,637 | 17.8% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 27 | 31 | $8,525 | $1,620 | 19.0% |
| 99215 | Established patient outpatient visit, total time 40-54 minutes | Office | 2021 | 294 | 882 | $471,870 | $107,914 | 22.9% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 353 | 954 | $381,600 | $71,929 | 18.8% |
| 99443 | Physician telephone patient service, 21-30 minutes of medical discussion | Office | 2021 | 206 | 357 | $142,800 | $28,239 | 19.8% |
| 99205 | New patient outpatient visit, total time 60-74 minutes | Office | 2021 | 117 | 117 | $87,750 | $16,357 | 18.6% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2021 | 38 | 98 | $16,660 | $6,065 | 36.4% |
| 99233 | Subsequent hospital inpatient care, typically 35 minutes per day | Facility | 2021 | 18 | 52 | $13,000 | $4,462 | 34.3% |
| 99204 | New patient outpatient visit, total time 45-59 minutes | Office | 2021 | 41 | 41 | $24,600 | $3,256 | 13.2% |
| 99442 | Physician telephone patient service, 11-20 minutes of medical discussion | Office | 2021 | 36 | 44 | $12,100 | $2,147 | 17.7% |
About Dr. Sang Ahn, M.D
Dr. Sang Ahn, M.D is a Specialist healthcare provider based in Los Angeles, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 03/28/2007. The National Provider Identifier (NPI) number assigned to this provider is 1568581759.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Sang Ahn, M.D has received a total of $9,650 in payments from pharmaceutical and medical device companies, with $48.36 received in 2024. These payments were reported across 290 transactions from 37 companies. The most common payment nature is "Food and Beverage" ($4,818).
As a Medicare-enrolled provider, Ahn has provided services to 4,259 Medicare beneficiaries, totaling 9,017 services with total Medicare billing of $732,335. Data is available for 4 years (2020–2023), covering 37 distinct procedure/service records.
Ad
Practice Information
- Specialty Specialist
- Other Specialties Hematology & Oncology
- Location Los Angeles, CA
- Active Since 03/28/2007
- Last Updated 11/27/2023
- Taxonomy Code 174400000X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1568581759
Products in Payments
- Lenvima (Drug) $4,495
- OPDIVO (Biological) $411.41
- NINLARO (Drug) $402.48
- XTANDI (Drug) $210.95
- Nplate (Biological) $194.51
- INLYTA (Drug) $191.71
- JAKAFI (Drug) $189.64
- Cabometyx (Drug) $184.80
- GILOTRIF (Drug) $181.94
- Kyprolis (Biological) $168.55
- KEYTRUDA (Biological) $166.73
- Avastin (Biological) $158.40
- Imbruvica (Drug) $155.15
- SYNDROS (Drug) $148.28
- TAGRISSO (Drug) $127.23
- TECENTRIQ (Biological) $114.39
- Xtandi (Drug) $100.78
- Rubraca (Drug) $100.60
- FASLODEX (Drug) $95.99
- IBRANCE (Drug) $93.01
Explore
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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