What is Caroline Yu's NPI number?

Caroline Yu's National Provider Identifier (NPI) is 1861052508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Caroline Yu's specialty?

Caroline Yu is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Caroline Yu located?

Caroline Yu's practice location on file with NPPES is 4101 Torrance Blvd, Torrance, CA 90503-4607.

What is Caroline Yu's phone number?

The practice phone number listed in the NPPES registry for Caroline Yu is (310) 540-7676.

Does Caroline Yu accept Medicare?

Caroline Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Caroline Yu's NPI active?

Yes — Caroline Yu's NPI (1861052508) is active in the NPPES registry as of the last update on 2025-10-20.

IndividualActiveAccepts Medicare

Caroline Yu

NPI 1861052508 · Neonatal-Perinatal Medicine Physician · Torrance, CA

Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Caroline Yu is a Neonatal-Perinatal Medicine Physician provider in Torrance, CA (NPI 1861052508).

Provider details

NPI number: 1861052508
Entity type: Individual
Primary specialty: Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Neonatal-Perinatal Medicine PhysicianPrimary2080N0001XLicense A181295 (CA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care
Pediatrics Physician208000000XLicense A181295 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(64/100 index)

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

Registry tenure38% of score
7 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
2 documented practice locations

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

4101 Torrance Blvd

Torrance, CA 90503-4607

Phone: (310) 540-7676

Street-level locationGet directions

More CA providers

Mailing address

2109 Hughes Dr Fl E

Toledo, OH 43606-3856

Additional practice locations (1)

2109 Hughes Dr Fl E
Toledo, OH 43606-3856
Phone: (419) 291-7322

Enumerated: 2019-06-14
Last updated: 2025-10-20
Certified: 2025-10-20

Frequently asked questions

What is Caroline Yu's NPI number?: Caroline Yu's National Provider Identifier (NPI) is 1861052508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Caroline Yu's specialty?: Caroline Yu is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Caroline Yu located?: Caroline Yu's practice location on file with NPPES is 4101 Torrance Blvd, Torrance, CA 90503-4607.
What is Caroline Yu's phone number?: The practice phone number listed in the NPPES registry for Caroline Yu is (310) 540-7676.
Does Caroline Yu accept Medicare?: Caroline Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Caroline Yu's NPI active?: Yes — Caroline Yu's NPI (1861052508) is active in the NPPES registry as of the last update on 2025-10-20.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.