CATHERINE SHEY-HWA NI M.D.
NPI 1013371343
Dermatology in Encino, CA
About Catherine Shey-hwa Ni M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE SHEY-HWA NI M.D. (NPI 1013371343) is an individual dermatology provider in Encino, California, licensed in California (A152607) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Sylmar, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Catherine Shey-hwa Ni M.d. 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
3Medicare enrollment records show Catherine Ni reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Northridge, CA 91325
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90025
- Reassigned Medicare billing, California enrollment
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 9
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 91436 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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ENCINO, CA 91436
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 Catherine Ni's NPI number?
The NPI number for Catherine Ni is 1013371343. It was assigned to this individual provider in the NPPES registry on April 13, 2016.
Where is Catherine Ni located?
Catherine Ni practices at 16260 Ventura Blvd Ste 530, Encino, CA 91436. The listed phone number is (818) 788-4022.
What is Catherine Ni's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Catherine Ni enrolled in Medicare?
Yes. Catherine Ni 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 Catherine Ni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Ni reassigns Medicare benefits to 3 organizations: Indianer, Lask & Rosenzweig, M.D.'s, Dermatology Group, A Medical Corp (Encino, CA), Southern California Permanente Medical Group (Northridge, CA) and Joshua M Wieder MD Inc (Los Angeles, 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 Catherine Ni'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 Catherine Ni was last updated on November 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Catherine Shey-Hwa Ni, M.D. · NPI 1013371343
Dermatology physician in Encino, California. Individual provider, active in the CMS NPPES registry since April 13, 2016.
## Identity
- **NPI:** 1013371343 (Entity type: Individual)
- **Enumerated:** April 13, 2016
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** A152607 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 16260 VENTURA BLVD STE 530, Encino, CA 91436-2248
- **Phone:** (818) 788-4022
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Indianer, Lask & Rosenzweig, M.D.'s, Dermatology Group, A Medical Corp (NPI 1487690475, Encino, CA); Southern California Permanente Medical Group (NPI 1013409036, Northridge, CA); Joshua M Wieder MD Inc (NPI 1437452448, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** November 3, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1013371343) · Data from the CMS NPPES public registry.