Jacob Kagan, M.D.
Psychiatry Physician · Boston, MA
Jacob Kagan, M.D. is a psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1336282565, issued on Feb 15, 2007. Check the license (Massachusetts 234622, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jacob Kagan
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 234622 MA
Self-reported in NPPES; status is on the state search - Practice location
- 30 Winter St, Boston, MA 02108
- Phone
- (617) 426-0600
- Enumerated
- Feb 15, 2007
- Record last updated
- Aug 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090818000766); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 2005
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 30 Winter St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zelys Adorno, PHARM.D,Pharmacist1245640853
- Robin AlsarrasRegistered Nurse1417554858
- Lady-Thelma Bolduc, NPFamily Nurse Practitioner1447562335
- Lindsey Broussard, RNCommunity Health Registered Nurse1609545763
- Cara Cavazza, NPNurse Practitioner1063713030
- Thomas Delaney, MSWSocial Worker1104047166
Verify Jacob Kagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 234622Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatry physician in 2024
104 Medicare Part D claims for 25 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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
- WP Acquisition Sub LLCHaverhill, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacob Kagan among 2,736 psychiatry physician records in Massachusetts
Jacob Kagan, 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 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 37% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2005 · median 2005 among the 1,219 with a school on file
- Record last updated2021 · 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).
845 psychiatry physician records list a practice address in Boston
They are 845 of the 41,865 NPPES records with a practice address in Boston, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Boston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Lisa Bosco, MB BCH BAOBoston, MA 021081124478037
- Peggy Johnson, M.D.Boston, MA 021081588626501
- Ronald Lee, M.D.Boston, MA 021081841443470
- Abena Apraku, MDBoston, MA 021091851774624
- David Gastfriend, M.D.Boston, MA 021091174562169
- Michael Johnson, MDBoston, MA 021091972542215
- Henrietta Kernan, D.O.Boston, MA 021091265585202
- Dara Pumphrey-Ruiz, M.D.Boston, MA 021091215258876
Common questions
What is Jacob Kagan, M.D.'s NPI number?
Jacob Kagan, M.D.'s National Provider Identifier (NPI) is 1336282565, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jacob Kagan, M.D. located?
The NPPES record lists a practice address at 30 Winter St, Boston, MA, 02108. Phone: (617) 426-0600. Providers update this record themselves, so call before visiting.
How can I verify Jacob Kagan, M.D.'s license?
NPPES lists Massachusetts license number 234622, 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 Jacob Kagan, M.D. prescribe under Medicare Part D?
In 2024, Jacob Kagan, M.D. had 104 Medicare Part D claims for 25 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.