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DR. ANGELA CHUNG-YI BIEN M.D.
NPI 1700049491
Internal Medicine - Gastroenterology in Rockville, MD

Active since July 03, 2008PECOS EnrolledAccepts Medicare Assignment
1396 PICCARD DR, ROCKVILLE, MD 20850(301) 548-5700 Get Directions Write a Review

NPPES record last updated: May 27, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 27, 2021, Aug 11, 2016 (2 updates tracked since 2016).

About Dr. Angela Chung-yi Bien M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ANGELA CHUNG-YI BIEN M.D. (NPI 1700049491) is an individual gastroenterology provider in Rockville, Maryland, licensed in Maryland (D79001) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2008).

NPPES Registry Identity

NPI1700049491
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ANGELA CHUNG-YI BIENCredential: M.D.
Location Address1396 PICCARD DRRockville, MD 20850-4302
Mailing Address1396 Piccard DrRockville, MD 20850-4302 · (301) 548-5713 · Fax (301) 548-5780
Phone(301) 548-5700
Sole ProprietorYes
Medical School CMSGeorge Washington University School Of MedicineGraduated 2008
Enumeration DateJuly 3, 2008
Last NPPES UpdateMay 27, 20212 updates tracked since enumeration
NPPES CertifiedMay 27, 2021
✔ NPI 1700049491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MD · D79001
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1396 PICCARD DR, Rockville, MD 20850
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Angela Chung-yi Bien M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3971745902
PECOS Enrollment IDI20150917001787, I20210126000030
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Angela Bien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc
4.0 mi
Health Maintenance Organization
655 WATKINS MILL RD
Gaithersburg, MD 20879
NPI 1831471713 (301) 258-7700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20850 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETELHEM BELAINEH
Radiologic Technologist (Mammography)
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (301) 548-5700
DR. CHARLES JOSEPH CONLON MD
Pediatrics (Developmental - Behavioral Pediatrics)
1396 PICCARD DR, KAISER PERMANENTE SHADY GROVE MEDICAL CENTER
ROCKVILLE, MD 20850
Montgomery County (301) 548-5700
KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC
Health Maintenance Organization
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (301) 641-1034
IBIRONKE ODUYEBO M.D.
Internal Medicine (Gastroenterology)
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (202) 384-4056
IRINA BOBROVA SHERMAN MD
Internal Medicine
1396 PICCARD DR, SHADY GROVE
ROCKVILLE, MD 20850
Montgomery County (301) 548-5700
MS. KARLA JEAN ABNEY LGSW, LMSW
Social Worker (Clinical)
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (571) 654-0139
DEBORAH ANNE AHERN LCSW-C
Social Worker (Clinical)
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (301) 548-5700
DR. ANITA BANSAL MD
Psychiatry & Neurology (Psychiatry)
1396 PICCARD DR
ROCKVILLE, MD 20850
Montgomery County (301) 548-5700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Angela Bien's NPI number?

The NPI number for Angela Bien is 1700049491. It was assigned to this individual provider in the NPPES registry on July 3, 2008.

Where is Angela Bien located?

Angela Bien practices at 1396 Piccard Dr, Rockville, MD 20850. The listed phone number is (301) 548-5700.

What is Angela Bien's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Angela Bien enrolled in Medicare?

Yes. Angela Bien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Angela Bien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Angela Bien reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Gaithersburg, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Angela Bien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Angela Bien was last updated on May 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.