Dr. Ruby Kwak, MD
- Part D claims, 2026
- 53
- Hospital affiliations
- 1
- Industry payments
- $230
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109
- Practice phone
- Call (734) 764-1505
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kwak's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ruby Kwak is a dermatologist in Miami, Florida
Dr. Kwak practices at University Hospital in Ann Arbor, Michigan, part of University of Michigan.
Dr. Kwak's NPI, 1124606512, was assigned on March 29, 2021. Dr. Kwak holds Michigan license 4301517523.
- NPI
- 1124606512NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466917307
- NPI enumeration date
- March 29, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 764-1505
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruby Kwak practices in Ann Arbor and Miami
Dr. Kwak's primary practice is University Hospital, at 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109 in Washtenaw County. The practice phone is (734) 764-1505. The NPI Registry lists Dr. Kwak's practice address as 1201 Nw 16th St, Miami, FL 33125.
- University HospitalPrimary1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109 · Washtenaw CountyPhone(734) 764-1505
- NPI Registry address1201 Nw 16th St, Miami, FL 33125 · Miami-Dade County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Ruby Kwak is affiliated with 1 site of care
Dr. Kwak's primary practice is University Hospital in Ann Arbor, Michigan, part of University of Michigan.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruby Kwak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kwak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Ruby Kwak is one of 1,200 dermatologists in Florida
Dermatology is Dr. Kwak's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Kwak is licensed in Michigan.
Specialties and state licenses
- Dermatology, MichiganPrimary
Dermatologists near Dr. Kwak
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ruby Kwak's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Kwak's median patient age at 66, with 33% women.
Dr. Kwak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Ruby Kwak wrote 53 Medicare Part D claims in 2026
In 2026, Dr. Kwak wrote 53 Medicare Part D claims for 13 patients. 96% of them were for generic drugs.
Dr. Kwak's Part D claims by kind of drug, 2026
- Generic51 claims96%
- Brand-name and other2 claims4%
Source: Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Ruby Kwak takes part in Medicare
Dr. Kwak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ruby Kwak received $230 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Kwak from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $230.
Companies that paid Dr. Kwak the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ruby Kwak's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ruby Kwak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ruby Kwak's NPI number?
Dr. Ruby Kwak's NPI number is 1124606512. It was assigned on March 29, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruby Kwak?
Dr. Ruby Kwak is a dermatologist in Miami, Florida. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Ruby Kwak practice?
Dr. Kwak practices at 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109. Dr. Kwak also practices at 1201 Nw 16th St, Miami, FL 33125. Dr. Kwak's primary practice is University Hospital in Ann Arbor, Michigan, part of University of Michigan.
What is Dr. Ruby Kwak's office phone number?
The practice phone on file for Dr. Kwak is (734) 764-1505. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Ruby Kwak's email address?
Dmand AI checks professional and personal email addresses for Dr. Kwak through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Ruby Kwak's medical license number?
Dr. Kwak holds Michigan license 4301517523.
Which hospitals is Dr. Ruby Kwak affiliated with?
Dr. Kwak practices at University Hospital in Ann Arbor, Michigan.
Does Dr. Ruby Kwak accept Medicare?
Yes. CMS lists Dr. Kwak as accepting Medicare assignment.
Has Dr. Ruby Kwak received payments from drug or device companies?
CMS Open Payments shows $230 in general payments to Dr. Kwak from 1 company from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Ruby Kwak been practicing?
Dr. Kwak's NPI was assigned in 2021.
What EHR does Dr. Ruby Kwak's practice use?
Dmand AI tracks the EHR system at University Hospital. The vendor and product are available with a free Dmand AI account.
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