NPPES file of Aug 9, 2026

Hoyeon Eric Song, MD PHD

Ophthalmology Physician · New Haven, CT

Hoyeon Eric Song, MD PHD is an ophthalmology physician with a practice address in New Haven, Connecticut, and NPI 1215670682, issued on Apr 14, 2022. Check the license (Connecticut 84917, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215670682
Name
Hoyeon Eric Song
Credential
MD PHD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
84917 CT
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 688-4242
Enumerated
Apr 14, 2022
Record last updated
May 19, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 20 York St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Hoyeon Eric Song in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 84917
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average ophthalmology physician in 2024

49 Medicare Part D claims for 31 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Hoyeon Song49
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate11 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.

Hoyeon Eric Song among 336 ophthalmology physician records in Connecticut

Hoyeon Eric Song, MD PHD is one of 336 ophthalmology physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than over 99% of them.

  • NPI issued2022 · over 99% of these records are older, under 1% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2026 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Connecticut

There are 336 ophthalmology physician records in Connecticut.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Jessica Chow, M.D.New Haven, CT 065101790951135
  2. Anthony Daniels, MDNew Haven, CT 065101659532646
  3. Lucian Del Priore, M.D.New Haven, CT 065101790702769
  4. Michael Ehrlich, M.D.New Haven, CT 065101003034042
  5. Paul Kang, MDNew Haven, CT 065101487680070
  6. Ji Liu, M.D.New Haven, CT 065101114157104
  7. Kristen Nwanyanwu, M.D., M.B.A.New Haven, CT 065101881821700
  8. Jennifer Renz, M.D.New Haven, CT 065101922241793

Common questions

What is Hoyeon Eric Song, MD PHD's NPI number?

Hoyeon Eric Song, MD PHD's National Provider Identifier (NPI) is 1215670682, issued on Apr 14, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Hoyeon Eric Song, MD PHD located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.

How can I verify Hoyeon Eric Song, MD PHD's license?

NPPES lists Connecticut license number 84917, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hoyeon Eric Song, MD PHD prescribe under Medicare Part D?

In 2024, Hoyeon Eric Song, MD PHD had 49 Medicare Part D claims for 31 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.