NPPES file of Aug 9, 2026

Timothy J. Petersen, PHD

Psychologist · Boston, MA

Timothy J. Petersen, PHD is a psychologist with a practice address in Boston, Massachusetts, and NPI 1295737898, issued on Aug 12, 2005. Check the license (Massachusetts 7731, 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
1295737898
Name
Timothy J. Petersen
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
7731 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Bowdoin SQ, Boston, MA 02114
Phone
(617) 643-0262
Enumerated
Aug 12, 2005
Record last updated
Sep 4, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(617) 726-2992
Medicaid ID
0503002 MA
Medicare enrollment
Enrolled (PECOS I20040518000104); 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 1 Bowdoin SQ

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

  1. Heidi Ashih, M.D., PH.D., M.S.Psychiatry Physician1699978734
  2. Chelsea Boccagno, MAStudent in an Organized Health Care Education/Training Program1063907251
  3. Thanh-Huy Eric Bui, M.D., PH.D.Psychiatry Physician1427506773
  4. Daniel CoppersmithStudent in an Organized Health Care Education/Training Program1659945442
  5. Sheena Dev, PHDClinical Neuropsychologist1144861469
  6. Dakota Egglefield, PHDPsychologist1124851936

Verify Timothy J. Petersen 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 7731
    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. The General Hospital CorporationBoston, MA

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

Timothy J. Petersen among 2,367 psychologist records in Massachusetts

Timothy J. Petersen, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated1998 · median 1997 among the 487 with a school on file
  • Record last updated2008 · 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 Timothy J. Petersen, PHD's NPI number?

Timothy J. Petersen, PHD's National Provider Identifier (NPI) is 1295737898, issued on Aug 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Timothy J. Petersen, PHD located?

The NPPES record lists a practice address at 1 Bowdoin SQ, Boston, MA, 02114. Phone: (617) 643-0262. Providers update this record themselves, so call before visiting.

How can I verify Timothy J. Petersen, PHD's license?

NPPES lists Massachusetts license number 7731, 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.