DR. JAMES STEVEN LEFFERT (ED.D.) – Psychologist, NPI 1013989565

DR. JAMES STEVEN LEFFERT (ED.D.) is a healthcare provider. based in Cambridge, Massachusetts. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials ED.D.. They hold a License No. 6678 (MA). The NPI Number for DR. JAMES STEVEN LEFFERT (ED.D.) is 1013989565

Main info

Male
Sole Proprietor
33 Years Of Experience
Accepts Medicare Assignment
Name
DR. JAMES STEVEN LEFFERT (ED.D.)
NPI
1013989565
Phone
(617) 492-8393
Address
57 GORHAM ST
Enumeration Date
7 February 2006
Last Update Date
3 March 2010

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6174928393
Graduation Year
1993 (33 years ago)
PAC ID
7517099476
Professional Enrollment ID
I20100713000535
Address ID
MA021393188CA49XXXSTXX301
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,694 CLINICAL PSYCHOLOGIST in MA

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Provider Addresses for DR. JAMES STEVEN LEFFERT (ED.D.)

  • 57, Gorham Street, Baldwin, Cambridge, Middlesex County, Massachusetts, 02138, United States

    CAMBRIDGE, MA 021381934

    Phone: (617) 492-8393

    Fax: (617) 354-3684

    Type: Mailing

  • 5, Edgell Road, Framingham Center, Framingham, Middlesex County, Massachusetts, 01702, United States

    FRAMINGHAM, MA 017014868

    Phone: (508) 370-9056

    Fax: (617) 354-3684

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-07-13

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100713000535IClinical PsychologistMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
90837Psychotherapy, 1 hour19313$0
90834Psychotherapy, 45 minutes10819$0
90832Psychotherapy, 30 minutes9315$0
View full utilization report →

Insurance plans in this area (ZIP 02138)

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Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. JAMES STEVEN LEFFERT (ED.D.)?
DR. JAMES STEVEN LEFFERT (ED.D.) — NPI 1013989565 — is the standard way to identify this listing.
Is DR. JAMES STEVEN LEFFERT (ED.D.) listed as active for patients and plans?
The listing shows DR. JAMES STEVEN LEFFERT (ED.D.) as active in the NPI system.
What is DR. JAMES STEVEN LEFFERT (ED.D.) best known for clinically?
Directory data describes DR. JAMES STEVEN LEFFERT (ED.D.) with Psychologist. Clinical services aligned with this taxonomy classification.
Where should I expect DR. JAMES STEVEN LEFFERT (ED.D.) on a map?
Expect Cambridge, Massachusetts as a primary anchor for DR. JAMES STEVEN LEFFERT (ED.D.) unless the record lists multiple sites.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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