NPPES file of Aug 9, 2026

Matthew Douglas Merguerian, M.D., PH.D.

Pediatric Hematology & Oncology Physician · Baltimore, MD

Matthew Douglas Merguerian, M.D., PH.D. is a pediatric hematology & oncology physician with a practice address in Baltimore, Maryland, and NPI 1386055804, issued on May 19, 2014. Check the license (Maryland D83441, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386055804
Name
Matthew Douglas Merguerian
Credential
M.D., PH.D.
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License number
D83441 MD
Self-reported in NPPES; status is on the state search
Practice location
200 N Wolfe St, Baltimore, MD 21287
Phone
(410) 955-6132
Enumerated
May 19, 2014
Record last updated
Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(410) 955-8208
Medicare enrollment
Enrolled (PECOS I20201222000021); may accept Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 2014
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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Also registered at 200 N Wolfe St

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

  1. Hoover Adger, M.D.Pediatrics Physician1265495949
  2. Yasmin Akhtar, D.O.Pediatrics Physician1669791497
  3. Meredith Atkinson, M.D.Pediatric Nephrology Physician1316093560
  4. Cindy Barnett, MSWClinical Social Worker1588797005
  5. Katherine Bennett, CRNPFamily Nurse Practitioner1801444153
  6. Tammy Brady, MD, MHSPediatric Nephrology Physician1346323623

Verify Matthew Douglas Merguerian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D83441    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

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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The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 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.

  1. Qualityout of 100 · 30% of the final score64.7
  2. Costout of 100 · 30%52.4
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Johns Hopkins UniversityBaltimore, MD

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

Pediatric Hematology & Oncology Physician providers in Maryland

There are 93 pediatric hematology & oncology physician records in Maryland.

All 93 in Maryland → Every provider in Baltimore →

Other pediatric hematology & oncology physician records in Maryland

  1. Blanche Alter, MD, MPHRockville, MD1295873370
  2. James Badgett, M.D.Baltimore, MD1336283654
  3. Kristin Baird, MDBethesda, MD1457396954
  4. Josiah Ballantine, MDBaltimore, MD1770958019
  5. Yevgeniya Bamme, MDBaltimore, MD1811230048
  6. Michael Bernhardt, MDBethesda, MD1922530229
  7. Challice Bonifant, MD, PHDBaltimore, MD1568605467
  8. Beth Carella, D.O.Baltimore, MD1992931182
  9. James Casella, M.D.Baltimore, MD1679522361
  10. William Cassano, M.D.Reisterstown, MD1518209014

Common questions

What is Matthew Douglas Merguerian, M.D., PH.D.'s NPI number?

Matthew Douglas Merguerian, M.D., PH.D.'s National Provider Identifier (NPI) is 1386055804, issued on May 19, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Douglas Merguerian, M.D., PH.D. located?

The NPPES record lists a practice address at 200 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-6132. Providers update this record themselves, so call before visiting.

How can I verify Matthew Douglas Merguerian, M.D., PH.D.'s license?

NPPES lists Maryland license number D83441, 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.

What is Matthew Douglas Merguerian, M.D., PH.D.'s MIPS final score?

The 2023 MIPS final score is 74.4 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.