Rachael Elizabeth Flatt, PHD
Clinical Psychologist · Boston, MA
Rachael Elizabeth Flatt, PHD is a clinical psychologist with a practice address in Boston, Massachusetts, and NPI 1164396305, issued on Oct 1, 2025. Check the license (Massachusetts PSY10001936, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rachael Elizabeth Flatt
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY10001936 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Oct 1, 2025
- Record last updated
- Oct 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20251016004072); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 2024
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rachael Elizabeth Flatt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PSY10001936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Children's Sports Medicine Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rachael Elizabeth Flatt among 3,185 clinical psychologist records in Massachusetts
Rachael Elizabeth Flatt, PHD is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 99% of them.
- NPI issued2025 · 99% of these records are older, under 1% newer
- In a Medicare fileYes · 12% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated2024 · median 2000 among the 777 with a school on file
- Record last updated2025 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
509 clinical psychologist records list a practice address in Boston
They are 509 of the 41,865 NPPES records with a practice address in Boston, and 3,185 clinical psychologist records in Massachusetts.
All 3,185 in Massachusetts → Every provider in Boston → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Janis Anderson, PH.D.Boston, MA 021151538230743
- Melvin Barton, PH.D.Boston, MA 021151700944774
- Katrina Boyer, PHDBoston, MA 021151578618005
- Elisa Bronfman, PHDBoston, MA 021151881749398
- Rachael Coakley, PH.D.Boston, MA 021151699823211
- Robert Edwards, PH.D.Boston, MA 021151093762536
- Abraham Feingold, PSY.D.Boston, MA 021151235248428
- Tina Lafiosca, PH.D.Boston, MA 021151699878520
Common questions
What is Rachael Elizabeth Flatt, PHD's NPI number?
Rachael Elizabeth Flatt, PHD's National Provider Identifier (NPI) is 1164396305, issued on Oct 1, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Rachael Elizabeth Flatt, PHD located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify Rachael Elizabeth Flatt, PHD's license?
NPPES lists Massachusetts license number PSY10001936, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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.