DR. HELEN SUN MD
NPI 1952966442
Internal Medicine in Daly City, CA
About Dr. Helen Sun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HELEN SUN MD (NPI 1952966442) is an individual internal medicine provider in Daly City, California, licensed in California (A176803) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Huntington, and is a graduate of Other (2016).
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
Dr. Helen Sun 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 Reassignment
Medicare enrollment records show Helen Sun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Daly City, CA 94015
- Reassigned Medicare billing, California enrollment
- 176 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 14
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 94015 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.
DALY CITY, CA 94015
DALY CITY, CA 94015
DALY CITY, CA 94015
DALY CITY, CA 94015
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 Helen Sun's NPI number?
The NPI number for Helen Sun is 1952966442. It was assigned to this individual provider in the NPPES registry on May 9, 2019.
Where is Helen Sun located?
Helen Sun practices at 211 Eastmoor Ave, Daly City, CA 94015. The listed phone number is (650) 550-3923.
What is Helen Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Helen Sun enrolled in Medicare?
Yes. Helen Sun 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 organization bills Medicare for Helen Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Helen Sun reassigns Medicare benefits to North East Medical Services (Daly City, CA). The 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 Helen Sun'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 Helen Sun was last updated on April 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.