Elana Hayasaka, M.D.
Emergency Medicine Physician · Boston, MA
Elana Hayasaka, M.D. is an emergency medicine physician with a practice address in Boston, Massachusetts, and NPI 1841721503, issued on Mar 24, 2017. Check the license (Massachusetts 271413, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Elana Hayasaka
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 271413 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Boston Medical Ctr PL, Boston, MA 02118
- Phone
- (617) 414-4929
- Enumerated
- Mar 24, 2017
- Record last updated
- Jun 19, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (617) 414-7759
- Medicare enrollment
- Enrolled (PECOS I20211014001093); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 1 Boston Medical Ctr PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tara AdyanthayaMental Health Counselor1053998419
- Shuchi AgarwalStudent in an Organized Health Care Education/Training Program1063701753
- Christina AgudeloStudent in an Organized Health Care Education/Training Program1699423772
- Priscilla AguilarStudent in an Organized Health Care Education/Training Program1033838792
Verify Elana Hayasaka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 271413Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average emergency medicine physician in 2024
253 Medicare Part D claims for 189 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 16 claims were for opioids.
Most prescribed
- Prednisone25 claims
- Ondansetron Odt21 claims
- Amoxicillin-Clavulanate Potass19 claims
- Azithromycin17 claims
- Oxycodone Hcl13 claims
- Cephalexin12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospital affiliations
- Corning HospitalCorning, NY · Acute Care Hospitals3 of 5 stars
- Robert Packer HospitalSayre, PA · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Elana Hayasaka among 1,829 emergency medicine physician records in Massachusetts
Elana Hayasaka, M.D. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2011 among the 1,200 with a school on file
- Record last updated2017 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
543 emergency medicine physician records list a practice address in Boston
They are 543 of the 41,865 NPPES records with a practice address in Boston, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Boston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Evan Berg, MDBoston, MA 021181982692596
- Edward Bernstein, MDBoston, MA 021181568434926
- Andreas Dewitz, MDBoston, MA 021181740267434
- Kathryn Dyer, MDBoston, MA 021181851363048
- James Feldman, MDBoston, MA 021181801868682
- Jerrilyn Jones, MDBoston, MA 021181467435396
- Joseph Kahn, M.D.Boston, MA 021181144293572
- Ricky Kue, M.D., M.P.H.Boston, MA 021181134102395
Common questions
What is Elana Hayasaka, M.D.'s NPI number?
Elana Hayasaka, M.D.'s National Provider Identifier (NPI) is 1841721503, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Elana Hayasaka, M.D. located?
The NPPES record lists a practice address at 1 Boston Medical Ctr PL, Boston, MA, 02118. Phone: (617) 414-4929. Providers update this record themselves, so call before visiting.
How can I verify Elana Hayasaka, M.D.'s license?
NPPES lists Massachusetts license number 271413, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elana Hayasaka, M.D. prescribe under Medicare Part D?
In 2024, Elana Hayasaka, M.D. had 253 Medicare Part D claims for 189 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Elana Hayasaka, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.