Emi Hayashi, MD
Infectious Disease Physician · Bronxville, NY
Emi Hayashi, MD is an infectious disease physician with a practice address in Bronxville, New York, and NPI 1780213322, issued on Apr 6, 2020. Check the license (New York 321663, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Emi Hayashi
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 321663 NY
Self-reported in NPPES; status is on the state search - Practice location
- 55 Palmer Ave FL 1, Bronxville, NY 10708
- Phone
- (212) 305-8123
- Enumerated
- Apr 6, 2020
- Record last updated
- Jun 5, 2026
- Medicare enrollment
- Enrolled (PECOS I20250703001651); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 970 in New York → Look up another NPI →
Also registered at 55 Palmer Ave FL 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Spillane, M.D.Hospitalist Physician1861607137
Verify Emi Hayashi 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 321663Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average infectious disease physician in 2024
422 Medicare Part D claims for 31 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Atorvastatin Calcium38 claims
- Biktarvy30 claims
- Albuterol Sulfate Hfa22 claims
- Tamsulosin Hcl20 claims
- Losartan Potassium19 claims
- Amlodipine Besylate17 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
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emi Hayashi among 970 infectious disease physician records in New York
Emi Hayashi, MD is one of 970 infectious disease physician records with a practice address in New York. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 96% of them.
- NPI issued2020 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2020 · median 2002 among the 624 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in New York
There are 970 infectious disease physician records in New York.
All 970 in New York → Every provider in Bronxville → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Robin Goldberg, MDBronxville, NY 107081316019003
- Jose Bonoan, M.D.Yonkers, NY 107041255312518
- Steven Barry, M.D.Yonkers, NY 107011720156094
- Eran Bellin, MDYonkers, NY 107011306935622
- Rajanish Bobde, M.D.Yonkers, NY 107011932254240
- Radhika Hariharan, M.D.Yonkers, NY 107011194893461
- Leonidez De Guzman, M.D.New Rochelle, NY 108011699900340
- Robert Goldstein, M.D.New Rochelle, NY 108011437307808
Common questions
What is Emi Hayashi, MD's NPI number?
Emi Hayashi, MD's National Provider Identifier (NPI) is 1780213322, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Emi Hayashi, MD located?
The NPPES record lists a practice address at 55 Palmer Ave FL 1, Bronxville, NY, 10708. Phone: (212) 305-8123. Providers update this record themselves, so call before visiting.
How can I verify Emi Hayashi, MD's license?
NPPES lists New York license number 321663, 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 Emi Hayashi, MD prescribe under Medicare Part D?
In 2024, Emi Hayashi, MD had 422 Medicare Part D claims for 31 beneficiaries; the average among infectious disease physician prescribers was 689. 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.