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DR. JOAN WEICHUN CHEN MD
NPI 1932371713
Internal Medicine - Gastroenterology in Ann Arbor, MI

Active since April 01, 2008PECOS EnrolledAccepts Medicare Assignment
1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CENTER RECP D, ANN ARBOR, MI 48109(734) 647-5944(734) 936-5458 Get Directions Write a Review

NPPES record last updated: September 3, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Joan Weichun Chen Md NPPES

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

DR. JOAN WEICHUN CHEN MD (NPI 1932371713) is an individual gastroenterology provider in Ann Arbor, Michigan, licensed in Michigan (4301103392) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of Vanderbilt University School Of Medicine (2005).

NPPES Registry Identity

NPI1932371713
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JOAN WEICHUN CHENCredential: MD
Location Address1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CENTER RECP DAnn Arbor, MI 48109-5362
Mailing Address3621 South State St, 700 Kms PlaceAnn Arbor, MI 48108 · (734) 936-2047
Phone(734) 647-5944
Fax(734) 936-5458
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 2005
Enumeration DateApril 1, 2008
Last NPPES UpdateSeptember 3, 2013
✔ NPI 1932371713 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MI · 4301103392
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036119706 (IL), 4301103392 (MI)
1500 EAST MEDICAL CENTER DR, Ann Arbor, MI 48109
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Other Identifiers 2

Medicare PINR01271IL
Medicaid036119706IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Joan Weichun Chen Md 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 ID1153492590
PECOS Enrollment IDI20131029001628
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.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Study of esophagus to assess movement 91010
This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.
33 services33 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
32 services32 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
31 services18 patients
Study of esophagus to assess movement 91010
This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.
29 services29 patients
Monitoring and recording of esophageal function through nasal tube with electrode 91037
This procedure involves placing a thin tube with an electrode through your nose and into your esophagus. It helps to monitor and record the function of your esophagus, aiding in diagnosing any potential issues.
26 services26 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
20 services20 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Michigan Health System

Acute Care Hospitals · Ann Arbor, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230046
Location1500 E Medical Center Drive, Spc 5474Ann Arbor, MI 48109 · Washtenaw County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48109 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
$134.28 typical visit price
range $58.04 – $177.36
Typical copayment $33.57 (range $14.51 – $44.34)
Most-billed visit code 99204
Established Patient
$102.35 typical visit price
range $18.32 – $143.49
Typical copayment $25.58 (range $4.58 – $35.87)
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.

NABIL ALKHOURY FALLOUH MD
Internal Medicine
1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CTR RECP B
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5582
PAUL DEREK FERNANDES BM
Anesthesiology
1500 EAST MEDICAL CENTER DR, 1H247 UNIVERSITY HOSPITAL
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4280
AUBREY LYNN BOUCHER PA-C
Physician Assistant
1500 EAST MEDICAL CENTER DR, 2ND FLOOR TAUBMAN CENTER RECP F
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5738
DONALD LAWSON JR. NP
Nurse Practitioner
1500 EAST MEDICAL CENTER DR, 3RD FLOOR C.S. MOTT CHILDREN'S HOSPITAL RECP C
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5780
MS. ALEXIS MAE PUNCHES NP
Nurse Practitioner (Critical Care Medicine)
1500 EAST MEDICAL CENTER DR, 12TH FLOOR C.S. MOTT CHILDRENS HOSPITAL RM 525
ANN ARBOR, MI 48109
Washtenaw County (734) 764-5302
PAULA K GLOBERSON CRNA
Nurse Anesthetist, Certified Registered
1500 EAST MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4280
DR. CLINTON LEOPOLD GREENSTONE MD
Internal Medicine
1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN RECP B
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5582
RAYMOND J HUTCHINSON MD
Pediatrics (Pediatric Hematology-Oncology)
1500 EAST MEDICAL CENTER DR, 7TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL
ANN ARBOR, MI 48109
Washtenaw County (734) 936-9814

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 Joan Chen's NPI number?

The NPI number for Joan Chen is 1932371713. It was assigned to this individual provider in the NPPES registry on April 1, 2008.

Where is Joan Chen located?

Joan Chen practices at 1500 East Medical Center Dr 3rd Floor Taubman Center Recp D, Ann Arbor, MI 48109. The listed phone number is (734) 647-5944.

What is Joan Chen's specialty?

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

Is Joan Chen enrolled in Medicare?

Yes. Joan Chen 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.

What insurance does Joan Chen accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community and Priority Health list Joan Chen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Joan Chen affiliated with any hospitals?

According to CMS data, Joan Chen is affiliated with University Of Michigan Health System.

When was this NPI record last updated?

The NPPES record for Joan Chen was last updated on September 3, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.