Dr. Nancy Chen, MD
- Medicare services, 2024
- 441
- Medicare patients, 2024
- 162
- Part D claims, 2024
- 591
- Hospital affiliations
- 2
- Industry payments
- $10,665
- Practice address
- 1517 Voorhies Ave, Brooklyn, NY 11235
- Practice phone
- Call (718) 332-0600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Triborough GI - Brooklyn (Voorhies Ave)
Surgery Center - Not Medicare-Certified · Brooklyn, New York
Find Dr. Chen'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. Nancy Chen is a gastroenterologist in Brooklyn, New York
Dr. Chen practices at Triborough GI - Brooklyn (Voorhies Ave) in Brooklyn, New York.
Dr. Chen's NPI, 1063742534, was assigned on January 6, 2010. Dr. Chen holds New York license 283889.
- NPI
- 1063742534NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183939663
- NPI enumeration date
- January 6, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 332-0600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nancy Chen practices at Triborough GI - Brooklyn (Voorhies Ave) in Brooklyn, New York
Dr. Chen's primary practice is Triborough GI - Brooklyn (Voorhies Ave), at 1517 Voorhies Ave, Brooklyn, NY 11235. The practice phone is (718) 332-0600.
- Triborough GI - Brooklyn (Voorhies Ave)1517 Voorhies Ave, Brooklyn, NY 11235Phone(718) 332-0600
Source: Dmand AI Affiliation Data
Dr. Nancy Chen is affiliated with 5 sites of care and 2 medical groups
Dr. Chen's primary practice is Triborough GI - Brooklyn (Voorhies Ave) in Brooklyn, New York. Dr. Chen is also affiliated with Maimonides Midwood Community Hospital. The medical group on file is Triborough GI. Dmand AI also links Dr. Chen to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nancy Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Triborough GI - Brooklyn (Voorhies Ave) | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nancy Chen is one of 1,583 gastroenterologists in New York
Gastroenterology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chen is licensed in New York.
Specialties and state licenses
- Gastroenterology, New YorkPrimary
Gastroenterologists near Dr. Chen
Counts of gastroenterologists 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. Nancy Chen billed Medicare for 441 services in 2024
CMS data shows 441 Medicare services from Dr. Chen across 8 procedure codes in 2024, for 162 Medicare patients. Medicare paid $63,517 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2472024: 2512%
- Surgery
- 2023: 1002024: 1055%
- Tests and treatments
- 2023: 882024: 853%
Dr. Chen compared with the New York median for gastroenterologists, 2024
- Dr. Chen
- New York median
- Medicare services
- 441vs 421Close to median
- Medicare patients
- 162vs 23631% below
- Part D claims
- 486vs 38227% above
Medians across 1,551 gastroenterologists in New York with Dmand AI profiles that report each measure.
Dr. Chen'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. Chen and other gastroenterologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nancy Chen treated 162 Medicare patients in 2024, average age 69
CMS counts 162 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 28% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 43, with 71% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women10967%
- Men5333%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis46%
- Diabetes45%
- Anxiety31%
- Ischemic heart disease28%
- Mood disorders20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women71%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nancy Chen wrote 591 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 591 Medicare Part D claims for 243 patients. 83% of them were for generic drugs. CMS names the drug for 486 of them, across 8 drugs with 11 or more claims each, at $39,970 in total drug cost. In 2023, CMS named 449 claims across 11 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic488 claims83%
- Brand-name103 claims17%
Dr. Chen's most prescribed drugs by claims, 2024
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. Chen's Part D claims, 2024
- Antibiotics2%14 of 591 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4492024: 4868%
Drugs named by CMS: 8 in 2024, 11 in 2023.
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. Nancy Chen ranks in the 81st percentile for colonoscopy in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 105 procedures of colonoscopy by Dr. Chen, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chen ranks in Medicare procedure volume
- Colonoscopy
- 81st percentile105 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 74th percentile89 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nancy Chen received $10,665 in industry payments from 2016 to 2025
CMS Open Payments shows 499 general payments to Dr. Chen from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Bausch Health Americas, Inc. paid the most, $2,135.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
- Food and beverage$10,58999%
- Education$761%
Companies that paid Dr. Chen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nancy Chen'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) |
| 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nancy Chen
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. Nancy Chen's NPI number?
Dr. Nancy Chen's NPI number is 1063742534. It was assigned on January 6, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Nancy Chen?
Dr. Nancy Chen is a gastroenterologist in Brooklyn, New York. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Nancy Chen practice?
Dr. Chen practices at 1517 Voorhies Ave, Brooklyn, NY 11235. Dr. Chen's primary practice is Triborough GI - Brooklyn (Voorhies Ave) in Brooklyn, New York. Dmand AI also links Dr. Chen to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Nancy Chen's office phone number?
The practice phone on file for Dr. Chen is (718) 332-0600.
What is Dr. Nancy Chen's medical license number?
Dr. Chen holds New York license 283889.
Which hospitals is Dr. Nancy Chen affiliated with?
Dr. Chen is affiliated with Maimonides Midwood Community Hospital. Dmand AI links Dr. Chen to 1 more hospital.
What medical group is Dr. Nancy Chen part of?
Dr. Chen is linked to Triborough GI. Dmand AI links Dr. Chen to 1 more medical group.
Does Dr. Nancy Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 441 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Nancy Chen see?
CMS counts 162 Medicare patients who saw Dr. Chen in 2024, with an average age of 69.
What services does Dr. Nancy Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99204) and infusion or chemotherapy administration (96360).
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What drugs does Dr. Nancy Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Pantoprazole Sodium, Sod Sulf-Potass Sulf-Mag Sulf and Famotidine.
Has Dr. Nancy Chen received payments from drug or device companies?
CMS Open Payments shows $10,665 in general payments to Dr. Chen from 32 companies from 2016 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Dr. Nancy Chen been practicing?
Dr. Chen graduated from medical school in 2009, 17 years ago.
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