Roy Kwak, M.D.
Diagnostic Radiology Physician · New York, NY
Roy Kwak, M.D. is a diagnostic radiology physician with a practice address in New York, New York, and NPI 1306039425, issued on Aug 22, 2007. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Roy Kwak
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A87176 CA
Self-reported in NPPES; status is on the state search - Practice location
- 423 E 23RD St, New York, NY 10010
- Phone
- (212) 636-7500
- Enumerated
- Aug 22, 2007
- Record last updated
- Apr 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131205001902); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 3,146 in New York → Look up another NPI →
Also registered at 423 E 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roy Kwak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Radiology Associates OF The Main Line, PCCorona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roy Kwak among 3,146 diagnostic radiology physician records in New York
Roy Kwak, M.D. is one of 3,146 diagnostic radiology physician records with a practice address in New York. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 38% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2002 · median 2002 among the 2,169 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
950 diagnostic radiology physician records list a practice address in New York
They are 950 of the 98,468 NPPES records with a practice address in New York, and 3,146 diagnostic radiology physician records in New York.
All 3,146 in New York → Every provider in New York → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Lien Che, MDNew York, NY 100101104027580
- Russell Gibson, M.D.New York, NY 100101083642789
- Michael Luttrull, M.D.New York, NY 100101740441187
- Vidya Malhotra, M.D.New York, NY 100101750354213
- Nisha Mehta, M.D.New York, NY 100101831363639
- Amy Melsaether, M.D.New York, NY 100101811192149
- Monica Mishra, M.D.New York, NY 100101093013617
- Josh Moosikasuwan, MDNew York, NY 100101124185079
Common questions
What is Roy Kwak, M.D.'s NPI number?
Roy Kwak, M.D.'s National Provider Identifier (NPI) is 1306039425, issued on Aug 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roy Kwak, M.D. located?
The NPPES record lists a practice address at 423 E 23RD St, New York, NY, 10010. Phone: (212) 636-7500. Providers update this record themselves, so call before visiting.
How can I verify Roy Kwak, M.D.'s license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.