Matthew S. Siegel, MD
Child & Adolescent Psychiatry Physician · Boston, MA
Matthew S. Siegel, MD is a child & adolescent psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1134347560, issued on Apr 23, 2007. Check the license (Massachusetts 1017978, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew S. Siegel
- Credential
- MD
- Primary taxonomy
- Child & Adolescent Psychiatry Physician 2084P0804X
- License numbers
- 1017978 MA
017772 ME
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Apr 23, 2007
- Record last updated
- Feb 1, 2024
- Entity
- Type 1 · individual
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Abadir, MDPediatric Cardiology Physician1427366459
- Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
- Kristin Abdelnour, PTPhysical Therapist1982821302
- Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
- Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
- Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233
Verify Matthew S. Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1017978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Child & Adolescent Psychiatry Physician providers in Massachusetts
There are 336 child & adolescent psychiatry physician records in Massachusetts.
Other child & adolescent psychiatry physician records in Massachusetts
- Patricia Abbott, MDWestwood, MA1417001686
- Annah Abrams, MDBoston, MA1689665234
- Ashley Adams, MDBoston, MA1790342053
- David Adams, MDBoston, MA1942752993
- Peter Adams, M.D.Newton, MA1710138011
- Solomon Adelsky, M.D.Cambridge, MA1023350931
- David Agger, LICSWFalmouth, MA1588764633
- Blaise Aguirre, MDBelmont, MA1619936846
- Ireen Ahmed, MDBoston, MA1548674807
- Mary Ahn, M.D.Boston, MA1952429532
Common questions
What is Matthew S. Siegel, MD's NPI number?
Matthew S. Siegel, MD's National Provider Identifier (NPI) is 1134347560, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Matthew S. Siegel, MD located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify Matthew S. Siegel, MD's license?
NPPES lists Massachusetts license number 1017978, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Matthew S. Siegel, MD's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. 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.
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.