Mary Catherine Brown, MD
Pediatric Otolaryngology Physician · Baltimore, MD
Mary Catherine Brown, MD is a pediatric otolaryngology physician with a practice address in Baltimore, Maryland, and NPI 1861953119, issued on Mar 28, 2019. Check the license (Maryland D0106727, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Mary Catherine Brown
- Credential
- MD
- Primary taxonomy
- Pediatric Otolaryngology Physician 207YP0228X
- License numbers
- D0106727 MD
MT230506 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4940 Eastern Ave, Baltimore, MD 21224
- Phone
- (410) 550-5568
- Enumerated
- Mar 28, 2019
- Record last updated
- Jul 17, 2026
- Entity
- Type 1 · individual
4 nearest pediatric otolaryngology physician records → All 5 in Maryland → Look up another NPI →
Also registered at 4940 Eastern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Catherine Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0106727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average pediatric otolaryngology physician in 2024
77 Medicare Part D claims for 34 beneficiaries, against an average of 129 among the 135 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Ondansetron Odt19 claims
- Cephalexin15 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.
Pediatric Otolaryngology Physician providers in Maryland
There are 5 pediatric otolaryngology physician records in Maryland.
All 5 in Maryland → Every provider in Baltimore → Pediatric Otolaryngology Physician nationwide →
The 4 pediatric otolaryngology physician records with the nearest ZIP codes
- Emily Boss, MDBaltimore, MD 212871437350840
- Aldo Londino, M.D.Baltimore, MD 212871326334236
- Jonathan Walsh, M.D.Baltimore, MD 212871437274206
- Jonathan Perkins, DOBethesda, MD 208891518313063
Common questions
What is Mary Catherine Brown, MD's NPI number?
Mary Catherine Brown, MD's National Provider Identifier (NPI) is 1861953119, issued on Mar 28, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Catherine Brown, MD located?
The NPPES record lists a practice address at 4940 Eastern Ave, Baltimore, MD, 21224. Phone: (410) 550-5568. Providers update this record themselves, so call before visiting.
How can I verify Mary Catherine Brown, MD's license?
NPPES lists Maryland license number D0106727, 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 Mary Catherine Brown, MD prescribe under Medicare Part D?
In 2024, Mary Catherine Brown, MD had 77 Medicare Part D claims for 34 beneficiaries; the average among pediatric otolaryngology physician prescribers was 129. 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.