Stephen Paul Yoon
Ophthalmology Physician · Baltimore, MD
Stephen Paul Yoon is an ophthalmology physician with a practice address in Baltimore, Maryland, and NPI 1508327420, issued on Mar 26, 2019. Check the license (Maryland D0099007, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Stephen Paul Yoon
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- D0099007 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St RM N3E09, Baltimore, MD 21201
- Phone
- (410) 328-6110
- Enumerated
- Mar 26, 2019
- Record last updated
- Sep 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20241009001891); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 588 in Maryland → Look up another NPI →
Also registered at 22 S Greene St RM N3E09
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mostafa Abdelhalim, MDStudent in an Organized Health Care Education/Training Program1164226510
- Lisa Abraham, MDStudent in an Organized Health Care Education/Training Program1740930387
- Abdulaziz Abu Haimed, M.B.B.SStudent in an Organized Health Care Education/Training Program1437881844
- Mohammad Abughanam, MBBSStudent in an Organized Health Care Education/Training Program1336751635
- Faisal Abushullaih, MBBSStudent in an Organized Health Care Education/Training Program1629770938
- Stephanie Adjei, MDStudent in an Organized Health Care Education/Training Program1497333967
Verify Stephen Paul Yoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0099007Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average ophthalmology physician in 2024
4,014 Medicare Part D claims for 1,217 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Latanoprost1,062 claims
- Dorzolamide-Timolol615 claims
- Brimonidine Tartrate450 claims
- Prednisolone Acetate290 claims
- Timolol Maleate252 claims
- Dorzolamide Hcl206 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.
Industry payments in 2024: $161.06
1 payment: food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Paul Yoon among 588 ophthalmology physician records in Maryland
Stephen Paul Yoon is one of 588 ophthalmology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2019 · median 2002 among the 369 with a school on file
- Record last updated2024 · 65% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Maryland
There are 588 ophthalmology physician records in Maryland.
All 588 in Maryland → Every provider in Baltimore → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Janet Alexander, MDBaltimore, MD 212011174771232
- Rebecca BausellBaltimore, MD 212011841678612
- Steven Bernstein, M.D., PH.D.Baltimore, MD 212011659308054
- Jonathan Ekedahl, MDBaltimore, MD 212011174781686
- Samuel Friedel, M.D.Baltimore, MD 212011417973785
- Francis Grumbine, MDBaltimore, MD 212011316178452
- Ramzi Hemady, M.D.Baltimore, MD 212011174568505
- Lily Im, MDBaltimore, MD 212011033134044
Common questions
What is Stephen Paul Yoon's NPI number?
Stephen Paul Yoon's National Provider Identifier (NPI) is 1508327420, issued on Mar 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Paul Yoon located?
The NPPES record lists a practice address at 22 S Greene St RM N3E09, Baltimore, MD, 21201. Phone: (410) 328-6110. Providers update this record themselves, so call before visiting.
How can I verify Stephen Paul Yoon's license?
NPPES lists Maryland license number D0099007, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Paul Yoon prescribe under Medicare Part D?
In 2024, Stephen Paul Yoon had 4,014 Medicare Part D claims for 1,217 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.