Total Payments
$1,278
2024 Payments
$384.84
Companies
8
Transactions
27
Medicare Patients
3,724
Medicare Billing
$722,034
Payment Breakdown by Category
Food & Beverage$1,261 (98.7%)
Education$16.24 (1.3%)
Other$0.00 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $1,261 | 26 | 98.7% |
| Education | $16.24 | 1 | 1.3% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Merck Sharp & Dohme LLC | $550.96 | 11 | $0 (2024) |
| Gilead Sciences, Inc. | $315.60 | 5 | $0 (2024) |
| AIMMUNE THERAPEUTICS, INC. | $120.50 | 4 | $0 (2024) |
| Astellas Pharma US Inc | $99.32 | 1 | $0 (2017) |
| SANOFI PASTEUR INC. | $72.96 | 1 | $0 (2019) |
| Shionogi Inc | $49.12 | 2 | $0 (2024) |
| Insmed, Inc. | $37.33 | 2 | $0 (2024) |
| ABBVIE INC. | $31.92 | 1 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $384.84 | 14 | AIMMUNE THERAPEUTICS, INC. ($120.50) |
| 2023 | $108.05 | 4 | Merck Sharp & Dohme LLC ($108.05) |
| 2022 | $16.24 | 1 | Insmed, Inc. ($16.24) |
| 2019 | $72.96 | 1 | SANOFI PASTEUR INC. ($72.96) |
| 2018 | $284.36 | 3 | Gilead Sciences, Inc. ($172.02) |
| 2017 | $411.26 | 4 | Merck Sharp & Dohme Corporation ($212.09) |
All Payment Transactions
27 individual payment records from CMS Open Payments — Page 1 of 2
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 10/01/2024 | Shionogi Inc | Fetroja (Drug) | Food and Beverage | In-kind items and services | $19.91 | General |
| Category: Infections and Infectious Diseases | ||||||
| 09/25/2024 | Merck Sharp & Dohme LLC | ZERBAXA (Drug) | Food and Beverage | In-kind items and services | $33.61 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 09/11/2024 | AIMMUNE THERAPEUTICS, INC. | VOWST (Biological) | Food and Beverage | In-kind items and services | $33.53 | General |
| Category: GI | ||||||
| 08/14/2024 | Merck Sharp & Dohme LLC | DIFICID (Drug), ZERBAXA | Food and Beverage | In-kind items and services | $29.21 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 07/24/2024 | ABBVIE INC. | AVYCAZ (Drug) | Food and Beverage | In-kind items and services | $31.92 | General |
| Category: ANTI-INFECTIVE | ||||||
| 07/17/2024 | Gilead Sciences, Inc. | — | Food and Beverage | In-kind items and services | $24.49 | General |
| 07/10/2024 | AIMMUNE THERAPEUTICS, INC. | VOWST (Biological) | Food and Beverage | In-kind items and services | $30.29 | General |
| Category: GI | ||||||
| 07/04/2024 | Shionogi Inc | Fetroja (Drug) | Food and Beverage | In-kind items and services | $29.21 | General |
| Category: Infections and Infectious Diseases | ||||||
| 06/26/2024 | Gilead Sciences, Inc. | — | Food and Beverage | In-kind items and services | $19.24 | General |
| 05/08/2024 | Merck Sharp & Dohme LLC | PREVYMIS (Drug), RECARBRIO, ZERBAXA | Food and Beverage | In-kind items and services | $26.82 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 03/08/2024 | Insmed, Inc. | Arikayce (Drug) | Food and Beverage | In-kind items and services | $21.09 | General |
| Category: Respiratory | ||||||
| 02/14/2024 | AIMMUNE THERAPEUTICS, INC. | VOWST (Biological) | Food and Beverage | In-kind items and services | $30.61 | General |
| Category: GI | ||||||
| 01/31/2024 | Merck Sharp & Dohme LLC | DIFICID (Drug), RECARBRIO, ZERBAXA | Food and Beverage | In-kind items and services | $28.84 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 01/25/2024 | AIMMUNE THERAPEUTICS, INC. | VOWST (Biological) | Food and Beverage | In-kind items and services | $26.07 | General |
| Category: GI | ||||||
| 10/11/2023 | Merck Sharp & Dohme LLC | DIFICID (Drug), RECARBRIO, ZERBAXA | Food and Beverage | In-kind items and services | $25.33 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 09/21/2023 | Merck Sharp & Dohme LLC | DIFICID (Drug), RECARBRIO, ZERBAXA | Food and Beverage | In-kind items and services | $32.20 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 03/08/2023 | Merck Sharp & Dohme LLC | DIFICID (Drug), ZERBAXA | Food and Beverage | In-kind items and services | $32.38 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 02/08/2023 | Merck Sharp & Dohme LLC | DIFICID (Drug), ZERBAXA | Food and Beverage | In-kind items and services | $18.14 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 12/05/2022 | Insmed, Inc. | Arikayce (Drug) | Education | In-kind items and services | $16.24 | General |
| Category: Respiratory | ||||||
| 02/06/2019 | SANOFI PASTEUR INC. | FLUBLOK QUADRIVALENT (Drug), FLUZONE HIGH-DOSE | Food and Beverage | In-kind items and services | $72.96 | General |
| Category: VACCINES | ||||||
| 11/27/2018 | Gilead Sciences, Inc. | Epclusa (Drug) | Food and Beverage | In-kind items and services | $76.16 | General |
| Category: HCV | ||||||
| 02/28/2018 | Gilead Sciences, Inc. | Biktarvy (Drug) | Food and Beverage | In-kind items and services | $95.86 | General |
| Category: HIV | ||||||
| 01/25/2018 | Merck Sharp & Dohme Corporation | ZINPLAVA (Biological) | Food and Beverage | In-kind items and services | $112.34 | General |
| Category: INFECTIOUS DISEASE | ||||||
| 11/03/2017 | Astellas Pharma US Inc | Cresemba (Drug) | Food and Beverage | In-kind items and services | $99.32 | General |
| Category: Infectious Diseases | ||||||
| 10/18/2017 | Merck Sharp & Dohme Corporation | ZERBAXA (Drug) | Food and Beverage | In-kind items and services | $93.52 | General |
| Category: INFECTIOUS DISEASE | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 8 | 1,062 | 2,331 | $592,147 | $187,816 |
| 2022 | 7 | 1,032 | 2,747 | $600,380 | $207,678 |
| 2021 | 7 | 901 | 2,252 | $440,754 | $175,123 |
| 2020 | 7 | 729 | 2,048 | $377,779 | $151,417 |
Total Patients
3,724
Total Services
9,378
Medicare Billing
$722,034
Procedure Codes
29
All Medicare Procedures & Services
29 procedure records from CMS Medicare Utilization — Page 1 of 2
| 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 | 331 | 1,220 | $218,380 | $74,268 | 34.0% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 181 | 471 | $121,518 | $42,992 | 35.4% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 256 | 270 | $134,730 | $36,411 | 27.0% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 190 | 264 | $84,480 | $24,463 | 29.0% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 40 | 42 | $14,322 | $4,289 | 29.9% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2023 | 15 | 15 | $8,385 | $2,448 | 29.2% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 12 | 12 | $5,448 | $1,558 | 28.6% |
| G0180 | Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Office | 2023 | 37 | 37 | $4,884 | $1,389 | 28.4% |
| 99232 | Follow-up hospital inpatient care per day, typically 25 minutes | Facility | 2022 | 351 | 1,716 | $278,744 | $97,151 | 34.9% |
| 99223 | Initial hospital inpatient care per day, typically 70 minutes | Facility | 2022 | 291 | 315 | $142,926 | $47,824 | 33.5% |
| 99233 | Follow-up hospital inpatient care per day, typically 35 minutes | Facility | 2022 | 163 | 414 | $96,306 | $33,968 | 35.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 165 | 239 | $65,622 | $23,336 | 35.6% |
| 99222 | Initial hospital inpatient care per day, typically 50 minutes | Facility | 2022 | 33 | 33 | $11,253 | $3,398 | 30.2% |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | Office | 2022 | 14 | 15 | $3,900 | $1,452 | 37.2% |
| G0180 | Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Office | 2022 | 15 | 15 | $1,629 | $548.79 | 33.7% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2021 | 317 | 1,512 | $217,680 | $87,431 | 40.2% |
| 99223 | Initial hospital inpatient care, typically 70 minutes per day | Facility | 2021 | 280 | 285 | $114,570 | $45,009 | 39.3% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 175 | 274 | $70,966 | $27,670 | 39.0% |
| 99233 | Subsequent hospital inpatient care, typically 35 minutes per day | Facility | 2021 | 72 | 118 | $24,407 | $9,717 | 39.8% |
| 99443 | Physician telephone patient service, 21-30 minutes of medical discussion | Office | 2021 | 18 | 24 | $6,240 | $2,540 | 40.7% |
| 99204 | New patient outpatient visit, total time 45-59 minutes | Office | 2021 | 12 | 12 | $4,056 | $1,649 | 40.7% |
| G0180 | Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Office | 2021 | 27 | 27 | $2,835 | $1,108 | 39.1% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2020 | 298 | 1,510 | $220,460 | $89,128 | 40.4% |
| 99223 | Initial hospital inpatient care, typically 70 minutes per day | Facility | 2020 | 237 | 241 | $98,810 | $39,295 | 39.8% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Office | 2020 | 82 | 118 | $25,606 | $9,844 | 38.4% |
About Dr. Man-Kuang Chang, M.D
Dr. Man-Kuang Chang, M.D is a Internal Medicine healthcare provider based in Jacksonville, Florida. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 07/05/2007. The National Provider Identifier (NPI) number assigned to this provider is 1598963290.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Man-Kuang Chang, M.D has received a total of $1,278 in payments from pharmaceutical and medical device companies, with $384.84 received in 2024. These payments were reported across 27 transactions from 8 companies. The most common payment nature is "Food and Beverage" ($1,261).
As a Medicare-enrolled provider, Chang has provided services to 3,724 Medicare beneficiaries, totaling 9,378 services with total Medicare billing of $722,034. Data is available for 4 years (2020–2023), covering 29 distinct procedure/service records.
Ad
Practice Information
- Specialty Internal Medicine
- Other Specialties Infectious Disease
- Location Jacksonville, FL
- Active Since 07/05/2007
- Last Updated 11/20/2024
- Taxonomy Code 207R00000X
- Entity Type Individual
- NPI Number 1598963290
Products in Payments
- Epclusa (Drug) $176.01
- DIFICID (Drug) $166.10
- ZERBAXA (Drug) $127.13
- VOWST (Biological) $120.50
- ISENTRESS (Drug) $118.57
- ZINPLAVA (Biological) $112.34
- Cresemba (Drug) $99.32
- Biktarvy (Drug) $95.86
- FLUBLOK QUADRIVALENT (Drug) $72.96
- Fetroja (Drug) $49.12
- Arikayce (Drug) $37.33
- AVYCAZ (Drug) $31.92
- PREVYMIS (Drug) $26.82
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.
Internal Medicine Doctors in Jacksonville
Siddharth Wayangankar, Md, MD
Internal Medicine — Payments: $1.3M
Internal Medicine $1.3M
Dr. Alan Miller, M.d, M.D
Internal Medicine — Payments: $770,575
Internal Medicine $770,575
Kalina Sanders, M.d, M.D
Internal Medicine — Payments: $626,907
Internal Medicine $626,907
Jose Soto Soto, Md, MD
Internal Medicine — Payments: $576,809
Internal Medicine $576,809
Dr. Jennifer Fulton, Md, MD
Internal Medicine — Payments: $556,016
Internal Medicine $556,016
Dr. Francis Farraye, M.d, M.D
Internal Medicine — Payments: $504,399
Internal Medicine $504,399