NPPES file of Aug 9, 2026

Daniel J. Millstein, PHD

Psychologist · Boston, MA

Daniel J. Millstein, PHD is a psychologist with a practice address in Boston, Massachusetts, and NPI 1972090678, issued on Apr 18, 2018. Check the license (Massachusetts 11681, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972090678
Name
Daniel J. Millstein
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License numbers
11681 MA
023817 NY
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 724-4133
Enumerated
Apr 18, 2018
Record last updated
Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220126002979); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 55 Fruit St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Daniel J. Millstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 11681
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Massachusetts General Physicians Organization IncCambridge, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daniel J. Millstein among 2,367 psychologist records in Massachusetts

Daniel J. Millstein, PHD is one of 2,367 psychologist records with a practice address in Massachusetts. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 73% of them.

  • NPI issued2018 · 73% of these records are older, 20% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2019 · median 1997 among the 487 with a school on file
  • Record last updated2021 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

457 psychologist records list a practice address in Boston

They are 457 of the 41,865 NPPES records with a practice address in Boston, and 2,367 psychologist records in Massachusetts.

The 8 psychologist records with the nearest ZIP codes

  1. John Ablon, PHDBoston, MA 021141629068929
  2. Kaaren Bekken, PHDBoston, MA 021141235129842
  3. Mark Blais, PHDBoston, MA 021141871583047
  4. Corinne Cather, PHDBoston, MA 021141174513725
  5. Robin Deutsch, PHDBoston, MA 021141841280658
  6. Stephen Durant, EDDBoston, MA 021141346230513
  7. Sherman Eisenthal, PHDBoston, MA 021141598755779
  8. Amy Farabaugh, PHDBoston, MA 021141427048610

Common questions

What is Daniel J. Millstein, PHD's NPI number?

Daniel J. Millstein, PHD's National Provider Identifier (NPI) is 1972090678, issued on Apr 18, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Daniel J. Millstein, PHD located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 724-4133. Providers update this record themselves, so call before visiting.

How can I verify Daniel J. Millstein, PHD's license?

NPPES lists Massachusetts license number 11681, 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.