HELEN HAE SUN DO
NPI 1497918478
Dentist - Pediatric Dentistry in Los Angeles, CA
About Helen Hae Sun Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HELEN HAE SUN DO (NPI 1497918478) is an individual pediatric dentistry provider in Los Angeles, California, licensed in California (55355) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Helen Hae Sun Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Helen Do reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
- 1,281 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 90020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Do's NPI number?
The NPI number for Helen Do is 1497918478. It was assigned to this individual provider in the NPPES registry on July 9, 2008.
Where is Helen Do located?
Helen Do practices at 3663 W 6th St Ste 303, Los Angeles, CA 90020. The listed phone number is (213) 384-2121.
What is Helen Do's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.
Is Helen Do enrolled in Medicare?
Yes. Helen Do is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Helen Do's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Helen Do reassigns Medicare benefits to Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, 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 Do's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Helen Do accept?
Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 5 other insurers list Helen Do as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Helen Do was last updated on July 9, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Helen Hae Sun Do · NPI 1497918478
Pediatric Dentistry provider in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 9, 2008.
## Identity
- **NPI:** 1497918478 (Entity type: Individual)
- **Enumerated:** July 9, 2008
- **Primary specialty:** Dentist - Pediatric Dentistry · taxonomy 1223P0221X
- **State license:** 55355 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3663 W 6TH ST STE 303, Los Angeles, CA 90020-3050
- **Phone:** (213) 384-2121
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Children's Hospital Los Angeles Medical Group, Inc. (NPI 1265530653, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 9, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1497918478) · Data from the CMS NPPES public registry.