NPPES file of Aug 9, 2026

Joanna Machain

Nurse Practitioner · Boston, MA

Joanna Machain is a nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1932561289, issued on Mar 25, 2016. Check the license (Massachusetts RN2307754, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1932561289
Name
Joanna Machain
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN2307754 MA
Self-reported in NPPES; status is on the state search
Practice location
84 State St, Boston, MA 02109
Phone
(800) 370-3651
Enumerated
Mar 25, 2016
Record last updated
Mar 9, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160706000399); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →

Also registered at 84 State St

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

  1. Steven Afrow, NPGerontology Nurse Practitioner1871946152
  2. Corey Baechel, PSYDClinical Psychologist1003149972
  3. Colette Duffy, LCSWClinical Social Worker1447809553
  4. Tarah Foley, LCSWClinical Social Worker1962128686
  5. Amina FoutPsychiatric/Mental Health Nurse Practitioner1962035840
  6. Kelly Lincoln, FNPFamily Nurse Practitioner1518591619

Verify Joanna Machain 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 RN2307754    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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Bills Medicare through one group practice

  1. Care Dimensions IncDanvers, MA

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

Joanna Machain among 3,480 nurse practitioner records in Massachusetts

Joanna Machain is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 51% of them.

  • NPI issued2016 · 51% of these records are older, 45% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2015 · median 2017 among the 1,963 with a school on file
  • Record last updated2017 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

961 nurse practitioner records list a practice address in Boston

They are 961 of the 41,865 NPPES records with a practice address in Boston, and 3,480 nurse practitioner records in Massachusetts.

All 3,480 in Massachusetts → Every provider in Boston → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Olivia Bane, FNPBoston, MA 021091053144956
  2. Linda Barnard, MS, APRN-BCBoston, MA 021091710994553
  3. Rose Felzani, NPBoston, MA 021091104003797
  4. Kathryn Gantman, N.P.Boston, MA 021091285984542
  5. Yuan Jia, NPBoston, MA 021091982062840
  6. Shannon Kurzeski, FNP-CBoston, MA 021091992207997
  7. Amanda Marr, NP-CBoston, MA 021091376214700
  8. Deborah Moore, CNPBoston, MA 021091356883896

Common questions

What is Joanna Machain's NPI number?

Joanna Machain's National Provider Identifier (NPI) is 1932561289, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Joanna Machain located?

The NPPES record lists a practice address at 84 State St, Boston, MA, 02109. Phone: (800) 370-3651. Providers update this record themselves, so call before visiting.

How can I verify Joanna Machain's license?

NPPES lists Massachusetts license number RN2307754, 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. 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.