Casey Lynn Johnson, PA
Physician Assistant · Springfield, MA
Casey Lynn Johnson, PA is a physician assistant with a practice address in Springfield, Massachusetts, and NPI 1578092821, issued on Jun 9, 2017. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Casey Lynn Johnson
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 300 Birnie Ave Ste 201, Springfield, MA 01107
- Phone
- (413) 233-1292
- Enumerated
- Jun 9, 2017
- Record last updated
- Sep 26, 2023
- Fax
- (413) 846-4742
- Medicare enrollment
- Enrolled (PECOS I20240118000018); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 300 Birnie Ave Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Casey Lynn Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regeneration Pittsburgh PLLCWexford, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Casey Lynn Johnson among 4,713 physician assistant records in Massachusetts
Casey Lynn Johnson, 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. Its NPI, issued in 2017, is newer than 40% of them.
- NPI issued2017 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2017 · median 2019 among the 3,217 with a school on file
- Record last updated2023 · 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).
172 physician assistant records list a practice address in Springfield
They are 172 of the 8,553 NPPES records with a practice address in Springfield, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Springfield → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Tamer Bahgat, PA-CSpringfield, MA 011071013938356
- Henry Casagrande, PA-CSpringfield, MA 011071568485696
- Michael Cavanagh, PA-CSpringfield, MA 011071801817960
- Mark Dutille, PA-CSpringfield, MA 011071447268149
- Alison Johnson, PASpringfield, MA 011071730181355
- Kimberly Mahoney, P.A.Springfield, MA 011071306928148
- Peter Michaud, PASpringfield, MA 011071619980968
- Anika Opp-Harris, PA-CSpringfield, MA 011071134138563
Common questions
What is Casey Lynn Johnson, PA's NPI number?
Casey Lynn Johnson, PA's National Provider Identifier (NPI) is 1578092821, issued on Jun 9, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Casey Lynn Johnson, PA located?
The NPPES record lists a practice address at 300 Birnie Ave Ste 201, Springfield, MA, 01107. Phone: (413) 233-1292. Providers update this record themselves, so call before visiting.
How can I verify Casey Lynn Johnson, PA'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.