Erin M. Johnson, M.D.
Psychiatry Physician · Springfield, MA
Erin M. Johnson, M.D. is a psychiatry physician with a practice address in Springfield, Massachusetts, and NPI 1639563810, issued on Mar 25, 2015. Check the license (Massachusetts 280469, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Erin M. Johnson
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 280469 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3300 Main St, Springfield, MA 01107
- Phone
- (413) 794-7035
- Enumerated
- Mar 25, 2015
- Record last updated
- Aug 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (413) 794-7130
- Medicare enrollment
- Enrolled (PECOS I20190829001131); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 3300 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Olga Aponte, MDChild & Adolescent Psychiatry Physician1649369059
- Hany Aziz, MDCardiovascular Disease Physician1679580385
Verify Erin M. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 280469Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average psychiatry physician in 2024
714 Medicare Part D claims for 52 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Clonazepam62 claims
- Bupropion Xl52 claims
- Quetiapine Fumarate48 claims
- Zolpidem Tartrate44 claims
- Duloxetine Hcl38 claims
- Lorazepam37 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Baystate Medical Practices IncSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin M. Johnson among 2,736 psychiatry physician records in Massachusetts
Erin M. Johnson, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2015 · median 2005 among the 1,219 with a school on file
- Record last updated2019 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Massachusetts
There are 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Springfield → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Ryan Alvares, M.D.Springfield, MA 011071598109944
- Stuart Anfang, M.D.Springfield, MA 011071033269410
- Lewis Cohen, MDSpringfield, MA 011071679597439
- Steven Fischel, MDSpringfield, MA 011071487678249
- Zachary Herrmann, D.O.Springfield, MA 011071134583438
- Veeraraghavan Iyer, MDSpringfield, MA 011071609259282
- Hossain Khan, DOSpringfield, MA 011071467941047
- Brianne Kumar, DOSpringfield, MA 011071558850131
Common questions
What is Erin M. Johnson, M.D.'s NPI number?
Erin M. Johnson, M.D.'s National Provider Identifier (NPI) is 1639563810, issued on Mar 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Erin M. Johnson, M.D. located?
The NPPES record lists a practice address at 3300 Main St, Springfield, MA, 01107. Phone: (413) 794-7035. Providers update this record themselves, so call before visiting.
How can I verify Erin M. Johnson, M.D.'s license?
NPPES lists Massachusetts license number 280469, 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.
How much does Erin M. Johnson, M.D. prescribe under Medicare Part D?
In 2024, Erin M. Johnson, M.D. had 714 Medicare Part D claims for 52 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.