CHIEN-WEN YANG
NPI 1548646664
Internal Medicine - Nephrology in Washington, DC
About Chien-wen Yang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHIEN-WEN YANG (NPI 1548646664) is an individual nephrology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD600004466) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Ochsner Medical Center Acute, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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
Chien-wen Yang 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.
Medicare Billing Reassignments
3Medicare enrollment records show Chien-wen Yang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20037
- Reassigned Medicare billing, District of Columbia enrollment
- 1,275 clinicians in this Medicare group
Washington, DC 20032
- Reassigned Medicare billing, District of Columbia enrollment
- 158 clinicians in this Medicare group
Bogalusa, LA 70427
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ochsner Medical Center Acute
Acute Care Hospitals · New Orleans, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WASHINGTON, DC 20037
WASHINGTON, DC 20037
WASHINGTON, DC 20037
WASHINGTON, DC 20037
WASHINGTON, DC 20037
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 Chien-wen Yang's NPI number?
The NPI number for Chien-wen Yang is 1548646664. It was assigned to this individual provider in the NPPES registry on July 31, 2015.
Where is Chien-wen Yang located?
Chien-wen Yang practices at 2150 Pennsylvania Ave NW, Washington, DC 20037. The listed phone number is (202) 741-2283.
What is Chien-wen Yang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Chien-wen Yang enrolled in Medicare?
Yes. Chien-wen Yang 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 organizations bill Medicare for Chien-wen Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chien-wen Yang reassigns Medicare benefits to 3 organizations: Medical Faculty Associates, Inc (Washington, DC), Foggy Bottom Physician Group Inc. (Washington, DC) and Ochsner Clinic LLC (Bogalusa, LA). Each 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 Chien-wen Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Chien-wen Yang affiliated with any hospitals?
According to CMS data, Chien-wen Yang is affiliated with Ochsner Medical Center Acute.
When was this NPI record last updated?
The NPPES record for Chien-wen Yang was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.
# Chien-Wen Yang · NPI 1548646664
Nephrology physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since July 31, 2015.
## Identity
- **NPI:** 1548646664 (Entity type: Individual)
- **Enumerated:** July 31, 2015
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** MD600004466 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 2150 PENNSYLVANIA AVE NW, Washington, DC 20037-3201
- **Phone:** (202) 741-2283 · **Fax:** (202) 741-2285
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Medical Faculty Associates, Inc (NPI 1417990581, Washington, DC); Foggy Bottom Physician Group Inc. (NPI 1831089846, Washington, DC); Ochsner Clinic LLC (NPI 1366797110, Bogalusa, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** May 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1548646664) · Data from the CMS NPPES public registry.