Justine Holly Mann, MD
Psychiatry Physician · Boston, MA
Justine Holly Mann, MD is a psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1235524828, issued on Apr 1, 2015. Check the license (Massachusetts 279418, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Justine Holly Mann
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 279418 MA
MT208114 PA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St # 812, Boston, MA 02114
- Phone
- (617) 724-5600
- Enumerated
- Apr 1, 2015
- Record last updated
- Jul 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (617) 726-7541
- Medicare enrollment
- Enrolled (PECOS I20190905000048); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St # 812
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Ahn, M.D.Psychiatry Physician1477812733
Verify Justine Holly Mann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 279418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average psychiatry physician in 2024
375 Medicare Part D claims for 35 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Escitalopram Oxalate39 claims
- Quetiapine Fumarate34 claims
- Duloxetine Hcl27 claims
- Lorazepam27 claims
- Aripiprazole23 claims
- Methylphenidate Er20 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justine Holly Mann among 2,736 psychiatry physician records in Massachusetts
Justine Holly Mann, MD 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).
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
- Steven Ablon, MDBoston, MA 021141083604839
- Barbara Beck, MDBoston, MA 021141720078272
- Judith Edersheim, MDBoston, MA 021141154311835
- Karleyton Evans, MDBoston, MA 021141407846058
- James Groves, MDBoston, MA 021141013906015
- John Herman, MDBoston, MA 021141275523961
- Rakesh Karmacharya, MD PHDBoston, MA 021141720078389
- Vaughn Mankey, MDBoston, MA 021141225028954
Common questions
What is Justine Holly Mann, MD's NPI number?
Justine Holly Mann, MD's National Provider Identifier (NPI) is 1235524828, issued on Apr 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Justine Holly Mann, MD located?
The NPPES record lists a practice address at 55 Fruit St # 812, Boston, MA, 02114. Phone: (617) 724-5600. Providers update this record themselves, so call before visiting.
How can I verify Justine Holly Mann, MD's license?
NPPES lists Massachusetts license number 279418, 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 Justine Holly Mann, MD prescribe under Medicare Part D?
In 2024, Justine Holly Mann, MD had 375 Medicare Part D claims for 35 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.