What is Jaeseung Sin's NPI number?

Jaeseung Sin's National Provider Identifier (NPI) is 1639046535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jaeseung Sin's specialty?

Jaeseung Sin is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).

Where is Jaeseung Sin located?

Jaeseung Sin's practice location on file with NPPES is 101 Callan Ave Ste 400, San Leandro, CA 94577-4523.

What is Jaeseung Sin's phone number?

The practice phone number listed in the NPPES registry for Jaeseung Sin is (844) 828-2254.

Is Jaeseung Sin's NPI active?

Yes — Jaeseung Sin's NPI (1639046535) is active in the NPPES registry as of the last update on 2025-10-23.

IndividualActive

Jaeseung Sin

NPI 1639046535 · Case Manager/Care Coordinator · San Leandro, CA

Jaeseung Sin is a Case Manager/Care Coordinator provider in San Leandro, CA (NPI 1639046535).

Provider details

NPI number: 1639046535
Entity type: Individual
Primary specialty: Case Manager/Care CoordinatorOther Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Case Manager/Care CoordinatorPrimary171M00000X
Other Service Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

101 Callan Ave Ste 400

San Leandro, CA 94577-4523

Phone: (844) 828-2254

Fax: (510) 547-3258

Street-level locationGet directions

More CA providers

Mailing address