DR. RUBY KWAK MD
NPI 1124606512
Dermatology in Ann Arbor, MI
About Dr. Ruby Kwak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RUBY KWAK MD (NPI 1124606512) is an individual dermatology provider in Ann Arbor, Michigan, licensed in Michigan (4301517523) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ruby Kwak 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48109 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Ruby Kwak's NPI number?
The NPI number for Ruby Kwak is 1124606512. It was assigned to this individual provider in the NPPES registry on March 29, 2021.
Where is Ruby Kwak located?
Ruby Kwak practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.
What is Ruby Kwak's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Ruby Kwak enrolled in Medicare?
Yes. Ruby Kwak 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.
Is Ruby Kwak affiliated with any hospitals?
According to CMS data, Ruby Kwak is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Ruby Kwak was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Ruby Kwak, MD · NPI 1124606512
Dermatology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since March 29, 2021.
## Identity
- **NPI:** 1124606512 (Entity type: Individual)
- **Enumerated:** March 29, 2021
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** 4301517523 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109-5000
- **Phone:** (734) 936-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** June 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1124606512) · Data from the CMS NPPES public registry.