John Herbert Growdon, MD
Neurology Physician · Boston, MA
John Herbert Growdon, MD is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1407846686, issued on Oct 27, 2005. Check the license (Massachusetts 0023371, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Herbert Growdon
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 0023371 MA
Self-reported in NPPES; status is on the state search - Practice location
- 15 Parkman St, Boston, MA 02114
- Phone
- (617) 726-1728
- Enumerated
- Oct 27, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (617) 726-4101
- Medicaid ID
- 2016907 MA
- Medicare enrollment
- Enrolled (PECOS I20050917000446); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 964 in Massachusetts → Look up another NPI →
Also registered at 15 Parkman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kate AdelettiPhysical Therapist1134247059
- Haitham Alabsi, DONeurology Physician1538587803
- Jonathan Alpert, MD PHDPsychiatry Physician1508857863
- Anthony Amato, MDNeurology Physician1124009881
- Maura Ament, PT DPTPhysical Therapist1629194386
- Sara Anderson, DPTPhysical Therapist1073924254
Verify John Herbert Growdon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 0023371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average neurology physician in 2024
655 Medicare Part D claims for 116 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Carbidopa-Levodopa149 claims
- Donepezil Hcl138 claims
- Carbidopa-Levodopa Er40 claims
- Memantine Hcl33 claims
- Primidone23 claims
- Rasagiline Mesylate21 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
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Herbert Growdon among 964 neurology physician records in Massachusetts
John Herbert Growdon, MD is one of 964 neurology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1965 · median 2006 among the 612 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
524 neurology physician records list a practice address in Boston
They are 524 of the 41,865 NPPES records with a practice address in Boston, and 964 neurology physician records in Massachusetts.
All 964 in Massachusetts → Every provider in Boston → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Cenk Ayata, MDBoston, MA 021141326038043
- Thomas Byrne, MDBoston, MA 021141346230075
- David Caplan, MD PHDBoston, MA 021141780674945
- Alice Flaherty, MD PHDBoston, MA 021141396735601
- Michael Irizarry, MDBoston, MA 021141790775237
- James Lehrich, MDBoston, MA 021141205826518
- Robert Levine, MDBoston, MA 021141154318459
- Anne Louise Oaklander, MD PHDBoston, MA 021141275523615
Common questions
What is John Herbert Growdon, MD's NPI number?
John Herbert Growdon, MD's National Provider Identifier (NPI) is 1407846686, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Herbert Growdon, MD located?
The NPPES record lists a practice address at 15 Parkman St, Boston, MA, 02114. Phone: (617) 726-1728. Providers update this record themselves, so call before visiting.
How can I verify John Herbert Growdon, MD's license?
NPPES lists Massachusetts license number 0023371, 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 John Herbert Growdon, MD prescribe under Medicare Part D?
In 2024, John Herbert Growdon, MD had 655 Medicare Part D claims for 116 beneficiaries; the average among neurology physician prescribers was 1,370. 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.