Angela Chung-Yi Bien, M.D.
Gastroenterology Physician · Rockville, MD
Angela Chung-Yi Bien, M.D. is a gastroenterology physician with a practice address in Rockville, Maryland, and NPI 1700049491, issued on Jul 3, 2008. Check the license (Maryland D79001, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Angela Chung-Yi Bien
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- D79001 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1396 Piccard Dr, Rockville, MD 20850
- Phone
- (301) 548-5700
- Enumerated
- Jul 3, 2008
- Record last updated
- May 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150917001787); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Also registered at 1396 Piccard Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anita Bansal, MDPsychiatry Physician1285075853
- Elizabeth Bashir, PHARMDPharmacist1891230223
- Betelhem BelainehMammography Radiologic Technologist1003447202
- Irina Bobrova Sherman, MDInternal Medicine Physician1194880401
Verify Angela Chung-Yi Bien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D79001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average gastroenterology physician in 2024
878 Medicare Part D claims for 418 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Gavilyte-C149 claims
- Pantoprazole Sodium108 claims
- Peg3350-Sod Sul-Nacl-Kcl-Asb-C62 claims
- Mesalamine53 claims
- Entecavir41 claims
- Trulance35 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $17.27
1 payment: food and beverage; the largest payer was CapsoVision, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Angela Chung-Yi Bien among 505 gastroenterology physician records in Maryland
Angela Chung-Yi Bien, M.D. is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.
- NPI issued2008 · 64% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2008 · median 2002 among the 344 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Rockville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Lawrence Bassin, MDRockville, MD 208501215921473
- Mark Birns, M.D.Rockville, MD 208501982692828
- Robert Eisdorfer, MDRockville, MD 208501891789046
- Elizabeth Gantt, MDRockville, MD 208501619973963
- Mark Gloger, M.D.Rockville, MD 208501295723146
- Ghanshyam Gupta, M.DRockville, MD 208501619089000
- Neil Julie, M.D.Rockville, MD 208501578661054
- Julia Korenman, MDRockville, MD 208501780678946
Common questions
What is Angela Chung-Yi Bien, M.D.'s NPI number?
Angela Chung-Yi Bien, M.D.'s National Provider Identifier (NPI) is 1700049491, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Angela Chung-Yi Bien, M.D. located?
The NPPES record lists a practice address at 1396 Piccard Dr, Rockville, MD, 20850. Phone: (301) 548-5700. Providers update this record themselves, so call before visiting.
How can I verify Angela Chung-Yi Bien, M.D.'s license?
NPPES lists Maryland license number D79001, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Angela Chung-Yi Bien, M.D. prescribe under Medicare Part D?
In 2024, Angela Chung-Yi Bien, M.D. had 878 Medicare Part D claims for 418 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.