Dillan Sooyong Chai
Internal Medicine Physician · Bronx, NY
Dillan Sooyong Chai is an internal medicine physician with a practice address in Bronx, New York, and NPI 1013361864, issued on Apr 19, 2016. Check the license (New York 301317, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Dillan Sooyong Chai
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 301317 NY
Self-reported in NPPES; status is on the state search - Practice location
- 234 E 149TH St, Bronx, NY 10451
- Phone
- (718) 579-5016
- Enumerated
- Apr 19, 2016
- Record last updated
- Jul 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (718) 579-4836
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 234 E 149TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Leena AbdelmotiStudent in an Organized Health Care Education/Training Program1487572293
- Faridat Abdulkarim, MDStudent in an Organized Health Care Education/Training Program1558096305
- Michael Abera, MDStudent in an Organized Health Care Education/Training Program1366365843
Verify Dillan Sooyong Chai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 301317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
290 Medicare Part D claims for 126 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Cefpodoxime Proxetil23 claims
- Atorvastatin Calcium19 claims
- Levofloxacin17 claims
- Pantoprazole Sodium16 claims
- Azithromycin15 claims
- Amlodipine Besylate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Dillan Sooyong Chai among 12,067 internal medicine physician records in New York
Dillan Sooyong Chai is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
960 internal medicine physician records list a practice address in Bronx
They are 960 of the 32,017 NPPES records with a practice address in Bronx, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Bronx → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Joseph Deluca, MDBronx, NY 104511184717308
- Ernst Ducena, MDBronx, NY 104511952334625
- Akinola Fisher, MDBronx, NY 104511992772966
- Philome Gracia, M.D.Bronx, NY 104511124032438
- Rafael Guillen, M.D.Bronx, NY 104511861430076
- Jonathan Joseph, M.D.Bronx, NY 104511679531065
Common questions
What is Dillan Sooyong Chai's NPI number?
Dillan Sooyong Chai's National Provider Identifier (NPI) is 1013361864, issued on Apr 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Dillan Sooyong Chai located?
The NPPES record lists a practice address at 234 E 149TH St, Bronx, NY, 10451. Phone: (718) 579-5016. Providers update this record themselves, so call before visiting.
How can I verify Dillan Sooyong Chai's license?
NPPES lists New York license number 301317, as entered by the provider. 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.
How much does Dillan Sooyong Chai prescribe under Medicare Part D?
In 2024, Dillan Sooyong Chai had 290 Medicare Part D claims for 126 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.