Dr. Augustus Chang, MD
- Medicare services, 2024
- 566
- Medicare patients, 2024
- 105
- Part D claims, 2024
- 37
- MIPS score, 2024
- 100
- Industry payments
- $880
- Practice address
- 622 W 168th St, New York, NY 10032
- Practice phone
- Call (212) 297-4255
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Columbia University Irving Medical Center
New York, New York
Find Dr. Chang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Augustus Chang is a hospitalist in New York, New York
Dr. Chang practices at Columbia University Irving Medical Center in New York, New York.
Dr. Chang's NPI, 1427615558, was assigned on May 23, 2019. Dr. Chang graduated from Rutgers, Robert Wood Johnson Medical School in 2019. Dr. Chang holds New York license 316411.
- NPI
- 1427615558NPI Registry (opens in a new tab)
- NPI enumeration date
- May 23, 2019
- NPI status
- Active
- Practice phone
- (212) 297-4255
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Augustus Chang practices at Columbia University Irving Medical Center in New York, New York
Dr. Chang's primary practice is Columbia University Irving Medical Center, at 622 W 168th St, New York, NY 10032 in New York County. The practice phone is (212) 297-4255.
- Columbia University Irving Medical Center622 W 168th St, New York, NY 10032 · New York CountyPhone(212) 297-4255
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Augustus Chang is affiliated with 1 site of care and 1 medical group
Dr. Chang's primary practice is Columbia University Irving Medical Center in New York, New York. The medical group on file is ColumbiaDoctors.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Augustus Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Columbia University Irving Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Augustus Chang is one of 1,796 hospitalists in New York
Hospitalist is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Chang's licenses on file in 2 states: New York and Rhode Island.
Specialties and state licenses
- Hospitalist, New YorkPrimary
- Internal medicine, Rhode Island
Hospitalists near Dr. Chang
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Augustus Chang billed Medicare for 566 services in 2024
CMS data shows 566 Medicare services from Dr. Chang across 4 procedure codes in 2024, for 105 Medicare patients. Medicare paid $64,845 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3892024: 56646%
Dr. Chang compared with the New York median for hospitalists, 2024
- Dr. Chang
- New York median
- Medicare services
- 566vs 38846% above
- Medicare patients
- 105vs 16336% below
- Part D claims
- 213vs 553.9 times
Medians across 1,696 hospitalists in New York with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Augustus Chang treated 105 Medicare patients in 2024, average age 75
CMS counts 105 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 46% are also on Medicaid. Their average risk score is 3.33, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 66, with 100% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women5149%
- Men5451%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Cancer67%
- Arthritis48%
- Ischemic heart disease46%
- Mood disorders46%
- Depression43%
- Anxiety41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Augustus Chang wrote 37 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 37 Medicare Part D claims. 100% of them were for generic drugs. They cover 11 drugs, with $19,090 in total drug cost. In 2021, CMS named 233 claims across 13 drugs.
Dr. Chang's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chang's Part D claims, 2024
- Antibiotics46%17 of 37 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 2332022: 2139%
Drugs named by CMS: 11 in 2022, 13 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Augustus Chang scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Chang for performance year 2024, reported through an alternative payment model (APM).
Dr. Chang's MIPS scores, performance year 2024
- 100of 100Final score
- 85.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Augustus Chang received $880 in industry payments from 2022 to 2025
CMS Open Payments shows 19 general payments to Dr. Chang from 10 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 90% of the total. Abbott Laboratories paid the most, $347.
General payments to Dr. Chang by program year, 2022 to 2025
General payments to Dr. Chang by kind, 2022 to 2025
- Food and beverage$79690%
- Education$8410%
Companies that paid Dr. Chang the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Augustus Chang graduated from Rutgers, Robert Wood Johnson Medical School
Dr. Chang graduated from Rutgers, Robert Wood Johnson Medical School in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Augustus Chang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Augustus Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Augustus Chang's NPI number?
Dr. Augustus Chang's NPI number is 1427615558. It was assigned on May 23, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Augustus Chang?
Dr. Augustus Chang is a hospitalist in New York, New York. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Augustus Chang practice?
Dr. Chang practices at 622 W 168th St, New York, NY 10032. Dr. Chang's primary practice is Columbia University Irving Medical Center in New York, New York.
What is Dr. Augustus Chang's office phone number?
The practice phone on file for Dr. Chang is (212) 297-4255.
What is Dr. Augustus Chang's medical license number?
Dr. Chang holds New York license 316411, one of the licenses on file in 2 states.
Which states has Dr. Augustus Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in New York and Rhode Island.
What medical group is Dr. Augustus Chang part of?
Dr. Chang is linked to ColumbiaDoctors.
Does Dr. Augustus Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 566 services in 2024.
What is Dr. Augustus Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Augustus Chang see?
CMS counts 105 Medicare patients who saw Dr. Chang in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Augustus Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99238).
Where did Dr. Augustus Chang go to medical school?
Dr. Chang graduated from Rutgers, Robert Wood Johnson Medical School in 2019.
What drugs does Dr. Augustus Chang prescribe most?
In 2022 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Gabapentin, Atorvastatin Calcium and Lisinopril.
Has Dr. Augustus Chang received payments from drug or device companies?
CMS Open Payments shows $880 in general payments to Dr. Chang from 10 companies from 2022 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Augustus Chang been practicing?
Dr. Chang graduated from medical school in 2019, 7 years ago.
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