ALEXANDER PHILLIP SUNG
NPI 1255080891
Internal Medicine in Pasadena, CA
About Alexander Phillip Sung NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER PHILLIP SUNG (NPI 1255080891) is an individual internal medicine provider in Pasadena, California, licensed in California (A187156) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of University Of Nevada School Of Medicine (2022).
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 and accepts Medicare assignment
Alexander Phillip Sung 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 Alexander Sung reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 1,766 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 91105 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PASADENA, CA 91105
PASADENA, CA 91105
PASADENA, CA 91105
PASADENA, CA 91105
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 Alexander Sung's NPI number?
The NPI number for Alexander Sung is 1255080891. It was assigned to this individual provider in the NPPES registry on March 21, 2022.
Where is Alexander Sung located?
Alexander Sung practices at 625 S Fair Oaks Ave Ste 280, Pasadena, CA 91105. The listed phone number is (626) 304-0070.
What is Alexander Sung's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Sung enrolled in Medicare?
Yes. Alexander Sung 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 Alexander Sung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Sung reassigns Medicare benefits to The Regents Of The University Of California (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 Alexander Sung'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 Alexander Sung was last updated on October 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Alexander Phillip Sung · NPI 1255080891
Internal Medicine physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since March 21, 2022.
## Identity
- **NPI:** 1255080891 (Entity type: Individual)
- **Enumerated:** March 21, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A187156 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 625 S FAIR OAKS AVE STE 280, Pasadena, CA 91105-2670
- **Phone:** (626) 304-0070
## 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:** The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Nevada School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** October 1, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1255080891) · Data from the CMS NPPES public registry.