DR. LOREN YUI CHEN M.D.
NPI 1972581643
Internal Medicine in Panorama City, CA
About Dr. Loren Yui Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LOREN YUI CHEN M.D. (NPI 1972581643) is an individual internal medicine provider in Panorama City, California, licensed in California (A60889) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Loren Yui Chen 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.
Medicare Billing Reassignments
2Medicare enrollment records show Loren Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
North Hollywood, CA 91606
- Reassigned Medicare billing, California enrollment
Burbank, CA 91505
- Reassigned Medicare billing, California enrollment
- 43 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PANORAMA CITY, CA 91402
PANORAMA CITY, CA 91402
PANORAMA CITY, CA 91402
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 Loren Chen's NPI number?
The NPI number for Loren Chen is 1972581643. It was assigned to this individual provider in the NPPES registry on January 4, 2006.
Where is Loren Chen located?
Loren Chen practices at 14860 Roscoe Blvd Suite 307, Panorama City, CA 91402. The listed phone number is (818) 787-4084.
What is Loren Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Loren Chen enrolled in Medicare?
Yes. Loren 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.
Which organizations bill Medicare for Loren Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Loren Chen reassigns Medicare benefits to 2 organizations: Dr. Loren Chen, MD Inc (North Hollywood, CA) and St. Joseph Hospitalist Medical Group, Inc. (Burbank, CA). 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 Loren Chen'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 Loren Chen was last updated on November 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Loren Yui Chen, M.D. · NPI 1972581643
Internal Medicine physician in Panorama City, California. Individual provider, active in the CMS NPPES registry since January 4, 2006.
## Identity
- **NPI:** 1972581643 (Entity type: Individual)
- **Enumerated:** January 4, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A60889 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 14860 ROSCOE BLVD, SUITE 307, Panorama City, CA 91402-4665
- **Phone:** (818) 787-4084 · **Fax:** (818) 994-4491
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Dr. Loren Chen, MD Inc (NPI 1790972081, North Hollywood, CA); St. Joseph Hospitalist Medical Group, Inc. (NPI 1396166971, Burbank, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** November 8, 2010
- **Other identifiers:** Medicare ID-Type Unspecified W17920 (CA); Medicaid 9990935 (CA); Medicare UPIN G72288 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1972581643) · Data from the CMS NPPES public registry.