JOHN YANG M.D.
NPI 1639569882
Internal Medicine in Corona, CA
About John Yang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN YANG M.D. (NPI 1639569882) is an individual internal medicine provider in Corona, California, licensed in California (A149797) and active in the NPI registry since January 2015. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Jamaica.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
John Yang 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
3Medicare enrollment records show John Yang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 187 clinicians in this Medicare group
Porterville, CA 93257
- Reassigned Medicare billing, California enrollment
- 159 clinicians in this Medicare group
Rochester, NY 14620
- Reassigned Medicare billing, New York enrollment
- 303 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAHighland Hospital
Acute Care Hospitals · Rochester, NYStrong Memorial Hospital
Acute Care Hospitals · Rochester, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92882 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.
CORONA, CA 92882
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 John Yang's NPI number?
The NPI number for John Yang is 1639569882. It was assigned to this individual provider in the NPPES registry on January 27, 2015.
Where is John Yang located?
John Yang practices at 800 S Main St, Corona, CA 92882. The listed phone number is (951) 737-4343.
What is John Yang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Yang enrolled in Medicare?
Yes. John 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 John Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Yang reassigns Medicare benefits to 3 organizations: Southern California Hospitalist Network Medical Group Inc (Orange, CA), 24 On Physicians Of California, PC (Porterville, CA) and Highland Hospital Of Rochester (Rochester, NY). 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 John Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Yang affiliated with any hospitals?
According to CMS data, John Yang is affiliated with Massachusetts General Hospital, Highland Hospital and Strong Memorial Hospital.
When was this NPI record last updated?
The NPPES record for John Yang was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# John Yang, M.D. · NPI 1639569882
Internal Medicine physician in Corona, California. Individual provider, active in the CMS NPPES registry since January 27, 2015.
## Identity
- **NPI:** 1639569882 (Entity type: Individual)
- **Enumerated:** January 27, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A149797 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 S MAIN ST, Corona, CA 92882-3420
- **Phone:** (951) 737-4343
## 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): Southern California Hospitalist Network Medical Group Inc (NPI 1790880458, Orange, CA); 24 On Physicians Of California, PC (NPI 1730570565, Porterville, CA); Highland Hospital Of Rochester (NPI 1376820241, Rochester, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 17, 2018
---
Source: [NPI Profile](https://npiprofile.com/npi/1639569882) · Data from the CMS NPPES public registry.