NPPES file of Aug 9, 2026

Leann Terry Diederich, PHD

Counseling Psychologist · Lemont, PA

Leann Terry Diederich, PHD is a counseling psychologist with a practice address in Lemont, Pennsylvania, and NPI 1962529503, issued on Mar 26, 2007. Check the license (Pennsylvania PS017258, as entered in NPPES) with the Pennsylvania 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
1962529503
Name
Leann Terry Diederich
Credential
PHD
Primary taxonomy
Counseling Psychologist 103TC1900X
License number
PS017258 PA
Self-reported in NPPES; status is on the state search
Practice location
720 Pike Street, Lemont, PA 16851
Phone
(814) 777-8899
Enumerated
Mar 26, 2007
Record last updated
Apr 21, 2023
Medicare enrollment
Enrolled (PECOS I20251014000035); accepts Medicare assignment
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 720 Pike Street

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

  1. Stephanie Stama, PSY.D.Clinical Psychologist1467989442
  2. Alissa Yamasaki, PH.D.Psychologist1780860767

Verify Leann Terry Diederich in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license PS017258
    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 Pennsylvania license search

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3 counseling psychologist records list a practice address in Lemont

They are 3 of the 16 NPPES records with a practice address in Lemont, and 368 counseling psychologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other counseling psychologist records in Pennsylvania

  1. Ashley Adams, MSPittsburgh, PA1164256012
  2. Cassandra AgugliaMoon Township, PA1609580950
  3. Elaine Alexander, ED.D.Jenkintown, PA1295892818
  4. Ajabeyang Amin, PSYDPhiladelphia, PA1881200061
  5. Stephen Antonucci, PHDHershey, PA1144104316
  6. Elsa Arce, PHDPittsburgh, PA1073722088
  7. Maddie Ashenfelter, PSYDBethlehem, PA1396515201
  8. Louis Baldino, M.A.Harleysville, PA1659395457
  9. Michael Balsan, PHDPittsburgh, PA1750050761
  10. Reginald Banks, PH.D.Philadelphia, PA1972783256

Common questions

What is Leann Terry Diederich, PHD's NPI number?

Leann Terry Diederich, PHD's National Provider Identifier (NPI) is 1962529503, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leann Terry Diederich, PHD located?

The NPPES record lists a practice address at 720 Pike Street, Lemont, PA, 16851. Phone: (814) 777-8899. Providers update this record themselves, so call before visiting.

How can I verify Leann Terry Diederich, PHD's license?

NPPES lists Pennsylvania license number PS017258, as entered by the provider. Search the Pennsylvania 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.

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.