NPPES file of Aug 9, 2026

Catherine Johnson, PA-C

Physician Assistant · Boston, MA

Catherine Johnson, PA-C is a physician assistant with a practice address in Boston, Massachusetts, and NPI 1699591958, issued on Dec 2, 2024. Check the license 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
1699591958
Name
Catherine Johnson
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
1 Boston Medical Ctr PL FL Place1, Boston, MA 02118
Phone
(617) 414-5481
Enumerated
Dec 2, 2024
Record last updated
Apr 23, 2025
Medicare enrollment
Enrolled (PECOS I20250422000265); accepts Medicare assignment
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 1 Boston Medical Ctr PL FL Place1

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

  1. Chinonso Agubosim, MDEmergency Medicine Physician1154988392
  2. Keryn Anderson, PA-CPhysician Assistant1992481972
  3. Alejandro Avina-CadenaEmergency Medicine Physician1184373631
  4. Emily Gohde, MDEmergency Medicine Physician1629607247
  5. Isabel Hardy, PA-CPhysician Assistant1649941980
  6. Gregory Howarth, PAPhysician Assistant1508114018

Verify Catherine Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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. Boston Emergency Physician Foundation IncBoston, MA

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

Catherine Johnson among 4,713 physician assistant records in Massachusetts

Catherine Johnson, PA-C 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. Its NPI, issued in 2024, is newer than 83% of them.

  • NPI issued2024 · 83% of these records are older, 9% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2024 · median 2019 among the 3,217 with a school on file
  • Record last updated2025 · 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).

1,660 physician assistant records list a practice address in Boston

They are 1,660 of the 41,865 NPPES records with a practice address in Boston, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Susan Bowler, PA-CBoston, MA 021181295812048
  2. Jennifer Czarniak, PABoston, MA 021181528050259
  3. Sandy Falcon, PA-CBoston, MA 021181275619033
  4. Barbara Furgal, PA-CBoston, MA 021181568556454
  5. Eric Haas, PABoston, MA 021181144312174
  6. Cynthia Kiang, PA-CBoston, MA 021181811974116
  7. Nina Lev, P.A.Boston, MA 021181568421923
  8. Elizabeth Marks, PA-CBoston, MA 021181396761169

Common questions

What is Catherine Johnson, PA-C's NPI number?

Catherine Johnson, PA-C's National Provider Identifier (NPI) is 1699591958, issued on Dec 2, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Johnson, PA-C located?

The NPPES record lists a practice address at 1 Boston Medical Ctr PL FL Place1, Boston, MA, 02118. Phone: (617) 414-5481. Providers update this record themselves, so call before visiting.

How can I verify Catherine Johnson, PA-C's license?

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.

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.