Dr. Angela Chung-Yi Bien, MD
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 878
- Industry payments
- $25
- Affiliated sites
- 3
- Medical group
- 1
- Practice address
- 1396 Piccard Dr, Rockville, MD 20850
- Practice phone
- Call (877) 390-0033
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Shady Grove Medical Center - Mammography
Mammography / Breast Imaging Center · Rockville, Maryland
Find Dr. Bien'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. Angela Chung-Yi Bien is a gastroenterologist in Rockville, Maryland
Dr. Bien practices at Shady Grove Medical Center - Mammography in Rockville, Maryland.
Dr. Bien's NPI, 1700049491, was assigned on July 3, 2008. Dr. Bien graduated from George Washington University School of Medicine in 2008. Dr. Bien holds Maryland license D79001.
- NPI
- 1700049491NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971745902
- NPI enumeration date
- July 3, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (877) 390-0033
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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. Angela Chung-Yi Bien practices at Shady Grove Medical Center - Mammography in Rockville, Maryland
Dr. Bien's primary practice is Shady Grove Medical Center - Mammography, at 1396 Piccard Dr, Rockville, MD 20850. The practice phone is (877) 390-0033.
- Shady Grove Medical Center - Mammography1396 Piccard Dr, Rockville, MD 20850Phone(877) 390-0033
Source: Dmand AI Affiliation Data
Dr. Angela Chung-Yi Bien is affiliated with 3 sites of care and 1 medical group
Dr. Bien's primary practice is Shady Grove Medical Center - Mammography in Rockville, Maryland. The medical group on file is Mid-Atlantic Permanente Medical Group. Dmand AI also links Dr. Bien to 1 more dialysis center and 1 group practice or clinic, 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. Angela Chung-Yi Bien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bien practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Shady Grove Medical Center - Mammography | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Angela Chung-Yi Bien is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Bien's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Bien is licensed in Maryland.
Specialties and state licenses
- Gastroenterology, MarylandPrimary
Gastroenterologists near Dr. Bien
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. Angela Chung-Yi Bien treated 15 Medicare patients in 2024, average age 69
CMS counts 15 Medicare patients who saw Dr. Bien in 2024. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bien's median patient age at 53, with 58% women.
Dr. Bien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Angela Chung-Yi Bien wrote 878 Medicare Part D claims in 2024
In 2024, Dr. Bien wrote 878 Medicare Part D claims for 418 patients. 81% of them were for generic drugs. CMS names the drug for 686 of them, across 18 drugs with 11 or more claims each, at $375,905 in total drug cost. In 2023, CMS named 575 claims across 17 drugs.
Dr. Bien's Part D claims by kind of drug, 2024
- Generic713 claims81%
- Brand-name165 claims19%
Dr. Bien'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. Bien's Part D claims, 2024
- Antibiotics3%22 of 878 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: 5752024: 68619%
Drugs named by CMS: 18 in 2024, 17 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
How Dr. Angela Chung-Yi Bien takes part in Medicare
Dr. Bien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Angela Chung-Yi Bien received $25 in industry payments from 2016 to 2024
CMS Open Payments shows 2 general payments to Dr. Bien from 2 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. CapsoVision, Inc. paid the most, $17.
General payments to Dr. Bien by program year, 2016 to 2024
Companies that paid Dr. Bien the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Angela Chung-Yi Bien graduated from George Washington University School of Medicine
Dr. Bien graduated from George Washington University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Angela Chung-Yi Bien'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 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) |
| 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. Angela Chung-Yi Bien
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. Angela Chung-Yi Bien's NPI number?
Dr. Angela Chung-Yi Bien's NPI number is 1700049491. It was assigned on July 3, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Angela Chung-Yi Bien?
Dr. Angela Chung-Yi Bien is a gastroenterologist in Rockville, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Angela Chung-Yi Bien practice?
Dr. Bien practices at 1396 Piccard Dr, Rockville, MD 20850. Dr. Bien's primary practice is Shady Grove Medical Center - Mammography in Rockville, Maryland. Dmand AI also links Dr. Bien to 1 dialysis center and 1 group practice or clinic.
What is Dr. Angela Chung-Yi Bien's office phone number?
The practice phone on file for Dr. Bien is (877) 390-0033.
What is Dr. Angela Chung-Yi Bien's medical license number?
Dr. Bien holds Maryland license D79001.
What medical group is Dr. Angela Chung-Yi Bien part of?
Dr. Bien is linked to Mid-Atlantic Permanente Medical Group.
Does Dr. Angela Chung-Yi Bien accept Medicare?
Yes. CMS lists Dr. Bien as accepting Medicare assignment.
How many Medicare patients does Dr. Angela Chung-Yi Bien see?
CMS counts 15 Medicare patients who saw Dr. Bien in 2024, with an average age of 69.
Where did Dr. Angela Chung-Yi Bien go to medical school?
Dr. Bien graduated from George Washington University School of Medicine in 2008.
What drugs does Dr. Angela Chung-Yi Bien prescribe most?
In 2024 Medicare Part D data, Dr. Bien's most prescribed drugs by claims were Gavilyte-C, Pantoprazole Sodium and Peg3350-Sod Sul-Nacl-Kcl-Asb-C.
Has Dr. Angela Chung-Yi Bien received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Bien from 2 companies from 2016 to 2024. The largest total came from CapsoVision, Inc.
How long has Dr. Angela Chung-Yi Bien been practicing?
Dr. Bien graduated from medical school in 2008, 18 years ago.
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