MAY C SUN D.O.
NPI 1629365424
Pediatrics in Peoria, IL
About May C Sun D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAY C SUN D.O. (NPI 1629365424) is an individual pediatrics provider in Peoria, Illinois, licensed in Illinois (125.059816) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
May C Sun D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show May Sun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Peoria, IL 61614
- Reassigned Medicare billing, Illinois enrollment
- 349 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 61615 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 May Sun's NPI number?
The NPI number for May Sun is 1629365424. It was assigned to this individual provider in the NPPES registry on June 30, 2011.
Where is May Sun located?
May Sun practices at 2401 W Alta Rd Apt 905, Peoria, IL 61615. The listed phone number is (858) 672-1851.
What is May Sun's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is May Sun enrolled in Medicare?
Yes. May Sun is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for May Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), May Sun reassigns Medicare benefits to Proctor Health Systems (Peoria, IL). 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 May 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 May Sun was last updated on June 30, 2011. 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.
# May C Sun, D.O. · NPI 1629365424
Pediatrics physician in Peoria, Illinois. Individual provider, active in the CMS NPPES registry since June 30, 2011.
## Identity
- **NPI:** 1629365424 (Entity type: Individual)
- **Enumerated:** June 30, 2011
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 125.059816 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2401 W ALTA RD APT 905, Peoria, IL 61615-1290
- **Phone:** (858) 672-1851
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Proctor Health Systems (NPI 1720223837, Peoria, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 30, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1629365424) · Data from the CMS NPPES public registry.