NPPES file of Aug 9, 2026

Mariah Swiech Henderson, PA

Physician Assistant · Medford, MA

Mariah Swiech Henderson, PA is a physician assistant with a practice address in Medford, Massachusetts, and NPI 1104376904, issued on Oct 5, 2016. Check the license (Massachusetts PA5908, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104376904
Name
Mariah Swiech Henderson
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA5908 MA
Self-reported in NPPES; status is on the state search
Practice location
124 Professors Row, Medford, MA 02155
Phone
(617) 627-7947
Enumerated
Oct 5, 2016
Record last updated
Mar 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 124 Professors Row

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

  1. Leslie Brown-Velazquez, PA-C, MHPPhysician Assistant1265649420
  2. Erin Castelli, PA-CPhysician Assistant1881096568
  3. Shayan Hashmi, MPASPhysician Assistant1376096685
  4. Margaret Higham, MDPediatrics Physician1821149410
  5. Mary Jo Holland, CFNPFamily Nurse Practitioner1437362084
  6. Lisa Keegan, AGPCNP-BC, WHNP-BCPrimary Care Nurse Practitioner1306381785

Verify Mariah Swiech Henderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license PA5908
    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
Find the Massachusetts 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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Mariah Swiech Henderson among 4,713 physician assistant records in Massachusetts

Mariah Swiech Henderson, PA is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 36% of them.

  • NPI issued2016 · 36% of these records are older, 60% newer
  • In a Medicare fileNo · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2020 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 physician assistant records list a practice address in Medford

They are 13 of the 1,090 NPPES records with a practice address in Medford, and 4,713 physician assistant records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 physician assistant records with the nearest ZIP codes

  1. Subhana Begum, PA-CMedford, MA 021551659145308
  2. Leslie Brown-Velazquez, PA-C, MHPMedford, MA 021551265649420
  3. Linda CappucciMedford, MA 021551982151411
  4. Erin Castelli, PA-CMedford, MA 021551881096568
  5. Shayan Hashmi, MPASMedford, MA 021551376096685
  6. Patricia Hughes, PAMedford, MA 021551922072065
  7. Mark Kestner, PAMedford, MA 021551053863662
  8. Riyana KhalifaMedford, MA 021551215613591

Common questions

What is Mariah Swiech Henderson, PA's NPI number?

Mariah Swiech Henderson, PA's National Provider Identifier (NPI) is 1104376904, issued on Oct 5, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Mariah Swiech Henderson, PA located?

The NPPES record lists a practice address at 124 Professors Row, Medford, MA, 02155. Phone: (617) 627-7947. Providers update this record themselves, so call before visiting.

How can I verify Mariah Swiech Henderson, PA's license?

NPPES lists Massachusetts license number PA5908, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.