NPPES file of Aug 9, 2026

Gregory J. Ludlow, ED.D

Clinical Psychologist · Boston, MA

Gregory J. Ludlow, ED.D is a clinical psychologist with a practice address in Boston, Massachusetts, and NPI 1942259882, issued on May 8, 2006. Check the license (Massachusetts 4402, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1942259882
Name
Gregory J. Ludlow
Credential
ED.D
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
4402 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Deaconess RD, Boston, MA 02215
Phone
(617) 632-7788
Enumerated
May 8, 2006
Record last updated
Jul 13, 2026
Fax
(617) 632-8430
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 3,185 in Massachusetts → Look up another NPI →

Also registered at 1 Deaconess RD

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

  1. Christina Abate, N.P.Family Nurse Practitioner1235414970
  2. Austin AdamsEmergency Medicine Physician1861139388
  3. Faisal AlfadhelNeuroradiology Physician1326692419
  4. Bree Alyeska, M.D.Emergency Medicine Physician1437597127
  5. Amanda Anastasi, M.D.Anesthesiology Physician1801820550
  6. Philip Anderson, M.D.Emergency Medicine Physician1477540235

Verify Gregory J. Ludlow 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 4402    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

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Gregory J. Ludlow among 3,185 clinical psychologist records in Massachusetts

Gregory J. Ludlow, ED.D 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 not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 70% newer
  • In a Medicare fileNo · 12% of these records are
  • In the CMS Doctors and Clinicians fileNo · 24% of these records are
  • Record last updated2026 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,185 in Massachusetts → Every provider in Boston → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Nancy Blum, PSY.D.Boston, MA 022151659580876
  2. Leslie Brody, PH.D.Boston, MA 022151568503290
  3. Jennifer Dotson, PSY.D.Boston, MA 022151881801702
  4. Kathleen Gallivan, PH.D.Boston, MA 022151134257330
  5. Thierry Guedj, PH.D.Boston, MA 022151649354895
  6. Stephen Knowlton, PHDBoston, MA 022151336291004
  7. Paul Lipsitt, PH.D.Boston, MA 022151033326764
  8. Tibor Palfai, PHDBoston, MA 022151770608846

Common questions

What is Gregory J. Ludlow, ED.D's NPI number?

Gregory J. Ludlow, ED.D's National Provider Identifier (NPI) is 1942259882, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory J. Ludlow, ED.D located?

The NPPES record lists a practice address at 1 Deaconess RD, Boston, MA, 02215. Phone: (617) 632-7788. Providers update this record themselves, so call before visiting.

How can I verify Gregory J. Ludlow, ED.D's license?

NPPES lists Massachusetts license number 4402, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.