Rebecca Kwon Masutani, MD
Geriatric Medicine (Internal Medicine) Physician · New York, NY
Rebecca Kwon Masutani, MD is a geriatric medicine (internal medicine) physician with a practice address in New York, New York, and NPI 1144714866, issued on Jun 16, 2018. Check the license (New York 312428, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Rebecca Kwon Masutani
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 312428 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Gustave L Levy PL, New York, NY 10029
- Phone
- (212) 241-6500
- Enumerated
- Jun 16, 2018
- Record last updated
- May 9, 2023
- Fax
- (212) 426-5054
- Medicare enrollment
- Enrolled (PECOS I20230606003554); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 508 in New York → Look up another NPI →
Also registered at 1 Gustave L Levy PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lila Abassi, M.D.Hospitalist Physician1871886606
- Erin AbbottStudent in an Organized Health Care Education/Training Program1699587170
- Ghadi AbboudDiagnostic Radiology Physician1740936822
- Richard Abel, M.D.Anesthesiology Physician1508148016
- Jessica Ables, M.D., PH.D.Psychiatry Physician1437543352
- Grant AbrahamsonStudent in an Organized Health Care Education/Training Program1194512590
Verify Rebecca Kwon Masutani 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 312428Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
2,317 Medicare Part D claims for 295 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 26 claims were for opioids.
Most prescribed
- Atorvastatin Calcium224 claims
- Amlodipine Besylate118 claims
- Levothyroxine Sodium84 claims
- Eliquis77 claims
- Losartan Potassium77 claims
- Gabapentin74 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.
Bills Medicare through one group practice
- Icahn School OF Medicine AT Mount SinaiNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca Kwon Masutani among 508 geriatric medicine (internal medicine) physician records in New York
Rebecca Kwon Masutani, MD is one of 508 geriatric medicine (internal medicine) 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 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 10% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2018 · median 1998 among the 272 with a school on file
- Record last updated2023 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in New York
There are 508 geriatric medicine (internal medicine) physician records in New York.
All 508 in New York → Every provider in New York → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Shahla Baharlou, MDNew York, NY 100291598725921
- Patricia Bloom, MDNew York, NY 100291699741074
- Eileen Callahan, MDNew York, NY 100291396711776
- Christine Chang, MDNew York, NY 100291477529857
- Audrey Chun, MDNew York, NY 100291831166271
- Helen Fernandez, MDNew York, NY 100291033185418
- Reena Karani, MDNew York, NY 100291427024702
- Beatriz Korc-Grodzicki, MDNew York, NY 100291336115617
Common questions
What is Rebecca Kwon Masutani, MD's NPI number?
Rebecca Kwon Masutani, MD's National Provider Identifier (NPI) is 1144714866, issued on Jun 16, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Kwon Masutani, MD located?
The NPPES record lists a practice address at 1 Gustave L Levy PL, New York, NY, 10029. Phone: (212) 241-6500. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Kwon Masutani, MD's license?
NPPES lists New York license number 312428, 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 Rebecca Kwon Masutani, MD prescribe under Medicare Part D?
In 2024, Rebecca Kwon Masutani, MD had 2,317 Medicare Part D claims for 295 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.