TIANE DAI MD
NPI 1457643751
Internal Medicine - Nephrology in Torrance, CA
About Tiane Dai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIANE DAI MD (NPI 1457643751) is an individual nephrology provider in Torrance, California, licensed in California (A114216) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS and is a graduate of Other (1988).
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
Tiane Dai Md 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 Reassignments
2Medicare enrollment records show Tiane Dai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Torrance, CA 90502
- Reassigned Medicare billing, California enrollment
- 279 clinicians in this Medicare group
Torrance, CA 90502
- Reassigned Medicare billing, California enrollment
- 1,939 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90502 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TORRANCE, CA 90502
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 Tiane Dai's NPI number?
The NPI number for Tiane Dai is 1457643751. It was assigned to this individual provider in the NPPES registry on May 5, 2011.
Where is Tiane Dai located?
Tiane Dai practices at 21840 Normandie Ave Ste 700, Torrance, CA 90502. The listed phone number is (310) 222-5026.
What is Tiane Dai's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Tiane Dai enrolled in Medicare?
Yes. Tiane Dai 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 organizations bill Medicare for Tiane Dai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tiane Dai reassigns Medicare benefits to 2 organizations: Prohealth Partners A Medical Group (Torrance, CA) and County Of Los Angeles (Torrance, CA). Each 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 Tiane Dai'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 Tiane Dai was last updated on July 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Tiane Dai, MD · NPI 1457643751
Nephrology physician in Torrance, California. Individual provider, active in the CMS NPPES registry since May 5, 2011.
## Identity
- **NPI:** 1457643751 (Entity type: Individual)
- **Enumerated:** May 5, 2011
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** A114216 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 21840 NORMANDIE AVE STE 700, Torrance, CA 90502-2047
- **Phone:** (310) 222-5026 · **Fax:** (310) 222-5027
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Prohealth Partners A Medical Group (NPI 1609226877, Torrance, CA); County Of Los Angeles (NPI 1851363188, Torrance, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** July 15, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1457643751) · Data from the CMS NPPES public registry.