Kirk R. Daffner, MD
Neurology Physician · Boston, MA
Kirk R. Daffner, MD is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1922081553, issued on Nov 29, 2005. Check the license (Massachusetts 56509, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kirk R. Daffner
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 56509 MA
Self-reported in NPPES; status is on the state search - Practice location
- 221 Longwood Ave, Boston, MA 02115
- Phone
- (617) 732-8060
- Enumerated
- Nov 29, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (617) 738-9122
- Medicaid ID
- 3031446 MA
- Medicare enrollment
- Enrolled (PECOS I20050412000864); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 964 in Massachusetts → Look up another NPI →
Also registered at 221 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kirk R. Daffner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 56509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average neurology physician in 2024
301 Medicare Part D claims for 44 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Donepezil Hcl44 claims
- Buspirone Hcl29 claims
- Sertraline Hcl28 claims
- Gabapentin24 claims
- Escitalopram Oxalate14 claims
- Divalproex Sodium13 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
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kirk R. Daffner among 964 neurology physician records in Massachusetts
Kirk R. Daffner, 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
- Graduated1984 · median 2006 among the 612 with a school on file
- Record last updated2007 · 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
- Tracy Batchelor, MD MPHBoston, MA 021151952391260
- R Farris, MDBoston, MA 021151093771149
- Steven Greenberg, MDBoston, MA 021151114992831
- Shahram Khoshbin, MDBoston, MA 021151881660322
- Jeremiah Scharf, MD PHDBoston, MA 021151720060916
- Dennis Selkoe, MDBoston, MA 021151184614356
- Fereshteh Soumekh, MDBoston, MA 021151346227006
- Reisa Sperling, MDBoston, MA 021151265422638
Common questions
What is Kirk R. Daffner, MD's NPI number?
Kirk R. Daffner, MD's National Provider Identifier (NPI) is 1922081553, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kirk R. Daffner, MD located?
The NPPES record lists a practice address at 221 Longwood Ave, Boston, MA, 02115. Phone: (617) 732-8060. Providers update this record themselves, so call before visiting.
How can I verify Kirk R. Daffner, MD's license?
NPPES lists Massachusetts license number 56509, 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 Kirk R. Daffner, MD prescribe under Medicare Part D?
In 2024, Kirk R. Daffner, MD had 301 Medicare Part D claims for 44 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.