DR. NHIA ROCKY YANG MD
NPI 1740809912
Internal Medicine in Fremont, CA
About Dr. Nhia Rocky Yang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NHIA ROCKY YANG MD (NPI 1740809912) is an individual internal medicine provider in Fremont, California, licensed in California (A183142) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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. Nhia Rocky Yang 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.
Medicare Billing Reassignments
2Medicare enrollment records show Nhia Yang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 3,056 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94538 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.
FREMONT, CA 94538
FREMONT, CA 94538
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 Nhia Yang's NPI number?
The NPI number for Nhia Yang is 1740809912. It was assigned to this individual provider in the NPPES registry on April 8, 2020.
Where is Nhia Yang located?
Nhia Yang practices at 2000 Mowry Ave, Fremont, CA 94538. The listed phone number is (510) 797-1111.
What is Nhia Yang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nhia Yang enrolled in Medicare?
Yes. Nhia 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 Nhia Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nhia Yang reassigns Medicare benefits to 2 organizations: Sutter Valley Medical Foundation (Fairfield, CA) and Hospitalist Medicine Physicians Of California, Inc (Apple Valley, 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 Nhia Yang'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 Nhia Yang was last updated on December 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Dr. Nhia Rocky Yang, MD · NPI 1740809912
Internal Medicine physician in Fremont, California. Individual provider, active in the CMS NPPES registry since April 8, 2020.
## Identity
- **NPI:** 1740809912 (Entity type: Individual)
- **Enumerated:** April 8, 2020
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A183142 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2000 MOWRY AVE, Fremont, CA 94538-1746
- **Phone:** (510) 797-1111
## 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): Sutter Valley Medical Foundation (NPI 1184859894, Fairfield, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** December 9, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1740809912) · Data from the CMS NPPES public registry.