Dr. David Robert Chang, MD
- Medicare services, 2024
- 510
- Medicare patients, 2024
- 489
- Hospital affiliations
- 1
- Industry payments
- $291
- Medical groups
- 4
- Practice address
- 214 Avenue P, Brooklyn, NY 11204
- Practice phone
- Call (718) 339-5678
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Brooklyn Endoscopy Center
Surgery Center - Medicare-Certified · Brooklyn, 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. David Robert Chang is an anesthesiologist in Brooklyn, New York
Dr. Chang practices at South Brooklyn Endoscopy Center in Brooklyn, New York.
Dr. Chang's NPI, 1992970941, was assigned on April 29, 2008. Dr. Chang graduated from State University of New York Downstate Medical Center in 2008. Dr. Chang holds New York license 263594.
- NPI
- 1992970941NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618126798
- NPI enumeration date
- April 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 339-5678
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Robert Chang practices at South Brooklyn Endoscopy Center in Brooklyn, New York
Dr. Chang's primary practice is South Brooklyn Endoscopy Center, at 214 Avenue P, Brooklyn, NY 11204. The practice phone is (718) 339-5678.
- South Brooklyn Endoscopy Center214 Avenue P, Brooklyn, NY 11204Phone(718) 339-5678
Source: Dmand AI Affiliation Data
Dr. David Robert Chang is affiliated with 2 sites of care and 4 medical groups
Dr. Chang's primary practice is South Brooklyn Endoscopy Center in Brooklyn, New York. Dr. Chang is also affiliated with Brookdale Hospital Medical Center. The medical group on file is Brookdale University Hospital and Medical Center. Dmand AI also links Dr. Chang to 3 more medical groups, each named with a free account. Dr. Chang's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Robert Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Brooklyn Endoscopy Center | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Robert Chang is one of 3,858 anesthesiologists in New York
Anesthesiology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Chang is licensed in New York.
Specialties and state licenses
- Anesthesiology, New YorkPrimary
Anesthesiologists near Dr. Chang
Counts of anesthesiologists 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. David Robert Chang billed Medicare for 510 services in 2024
CMS data shows 510 Medicare services from Dr. Chang across 4 procedure codes in 2024, for 489 Medicare patients. Medicare paid $56,175 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang compared with the New York median for anesthesiologists, 2024
- Dr. Chang
- New York median
- Medicare services
- 510vs 766.7 times
- Medicare patients
- 489vs 1323.7 times
Medians across 3,723 anesthesiologists 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other anesthesiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Robert Chang treated 489 Medicare patients in 2024, average age 71
CMS counts 489 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 295 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 58, with 58% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women29961%
- Men19039%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes52%
- Arthritis48%
- Ischemic heart disease31%
- Anxiety24%
- Mood disorders23%
- Depression20%
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 58
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. David Robert Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Robert Chang received $291 in industry payments from 2024 to 2025
CMS Open Payments shows 12 general payments to Dr. Chang from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $119.
General payments to Dr. Chang by program year, 2024 to 2025
Companies that paid Dr. Chang the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Robert Chang graduated from State University of New York Downstate Medical Center
Dr. Chang graduated from State University of New York Downstate Medical Center in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Robert 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. David Robert 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. David Robert Chang's NPI number?
Dr. David Robert Chang's NPI number is 1992970941. It was assigned on April 29, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. David Robert Chang?
Dr. David Robert Chang is an anesthesiologist in Brooklyn, New York. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. David Robert Chang practice?
Dr. Chang practices at 214 Avenue P, Brooklyn, NY 11204. Dr. Chang's primary practice is South Brooklyn Endoscopy Center in Brooklyn, New York. Dmand AI also links Dr. Chang to 3 medical groups.
What is Dr. David Robert Chang's office phone number?
The practice phone on file for Dr. Chang is (718) 339-5678.
What is Dr. David Robert Chang's medical license number?
Dr. Chang holds New York license 263594.
Which hospitals is Dr. David Robert Chang affiliated with?
Dr. Chang is affiliated with Brookdale Hospital Medical Center.
What medical group is Dr. David Robert Chang part of?
Dr. Chang is linked to Brookdale University Hospital and Medical Center. Dmand AI links Dr. Chang to 3 more medical groups.
Does Dr. David Robert Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 510 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. David Robert Chang see?
CMS counts 489 Medicare patients who saw Dr. Chang in 2024, with an average age of 71.
What services does Dr. David Robert Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were anesthesia (00731), anesthesia (00812) and anesthesia (00811).
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Where did Dr. David Robert Chang go to medical school?
Dr. Chang graduated from State University of New York Downstate Medical Center in 2008.
Has Dr. David Robert Chang received payments from drug or device companies?
CMS Open Payments shows $291 in general payments to Dr. Chang from 4 companies from 2024 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. David Robert Chang been practicing?
Dr. Chang graduated from medical school in 2008, 18 years ago.
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