NPPES file of Aug 9, 2026

Michael Seijong Hong, MD

Dermatology Physician · Owings Mills, MD

Michael Seijong Hong, MD is a dermatology physician with a practice address in Owings Mills, Maryland, and NPI 1578140240, issued on Mar 26, 2021. Check the license (Maryland D0102342, as entered in NPPES) on the Maryland Board of Physicians; 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
1578140240
Name
Michael Seijong Hong
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
D0102342 MD
Self-reported in NPPES; status is on the state search
Practice location
21 Crossroads Dr Ste 255, Owings Mills, MD 21117
Phone
(410) 363-2320
Enumerated
Mar 26, 2021
Record last updated
Jul 1, 2025
Medicare enrollment
Enrolled (PECOS I20250724000325); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Michael Seijong Hong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0102342
    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 Maryland license search

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60% fewer Medicare Part D claims than the average dermatology physician in 2024

322 Medicare Part D claims for 124 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Michael Hong322
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide34 claims
  2. Ketoconazole29 claims
  3. Clindamycin Phosphate20 claims
  4. Fluocinonide19 claims
  5. Hydrocortisone19 claims
  6. Clobetasol Propionate17 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

  1. Pennsylvania Dermatology Partners IncOwings Mills, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Seijong Hong among 341 dermatology physician records in Maryland

Michael Seijong Hong, MD is one of 341 dermatology physician records with a practice address in Maryland. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.

  • NPI issued2021 · 92% of these records are older, 4% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2021 · median 2005 among the 241 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Maryland

There are 341 dermatology physician records in Maryland.

The 8 dermatology physician records with the nearest ZIP codes

  1. Lewis Cylus, M.D.Owings Mills, MD 211171629214499
  2. Steven Snyder, MDOwings Mills, MD 211171578637674
  3. Irving Wolfe, MD,PAOwings Mills, MD 211171508832346
  4. Allison Linquist, M.D.Pasadena, MD 211221396714994
  5. Natalia Biles, MDMillersville, MD 211081588169395
  6. Irmina Boulier, M.D.Millersville, MD 211081316059587
  7. Sammy Kang, MDMillersville, MD 211081265606727
  8. Pamela Madu, MDMillersville, MD 211081598297962

Common questions

What is Michael Seijong Hong, MD's NPI number?

Michael Seijong Hong, MD's National Provider Identifier (NPI) is 1578140240, issued on Mar 26, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Michael Seijong Hong, MD located?

The NPPES record lists a practice address at 21 Crossroads Dr Ste 255, Owings Mills, MD, 21117. Phone: (410) 363-2320. Providers update this record themselves, so call before visiting.

How can I verify Michael Seijong Hong, MD's license?

NPPES lists Maryland license number D0102342, 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 Michael Seijong Hong, MD prescribe under Medicare Part D?

In 2024, Michael Seijong Hong, MD had 322 Medicare Part D claims for 124 beneficiaries; the average among dermatology physician prescribers was 797. 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.