NPPES file of Aug 9, 2026

Mary Margaret Lindsay, PH.D.

Clinical Psychologist · Downingtown, PA

Mary Margaret Lindsay, PH.D. is a clinical psychologist with a practice address in Downingtown, Pennsylvania, and NPI 1558654608, issued on May 24, 2011. Check the license (Pennsylvania PS006669L, as entered in NPPES) with the Pennsylvania 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
1558654608
Name
Mary Margaret Lindsay
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PS006669L PA
Self-reported in NPPES; status is on the state search
Practice location
151 Woodbine RD, Downingtown, PA 19335
Phone
(610) 269-2600
Enumerated
May 24, 2011
Record last updated
May 24, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(610) 518-2020
Medicare enrollment
Enrolled (PECOS I20110629000262); 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 151 Woodbine RD

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

  1. Hema Babaria, PH.DClinical Psychologist1174113799
  2. Karen Cote, PSY.DClinical Psychologist1477975472
  3. Thomas Dugan, LCSWClinical Social Worker1942554720
  4. Ashley GilbertClinical Psychologist1205589249
  5. Eric Haas, PSY.D.Clinical Psychologist1093028961
  6. Richard Mahr, PSY.D.Clinical Psychologist1295156909

Verify Mary Margaret Lindsay 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 PS006669L    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

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. Villa St John VianneyDowningtown, PA

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

14 clinical psychologist records list a practice address in Downingtown

They are 14 of the 564 NPPES records with a practice address in Downingtown, and 2,597 clinical psychologist records in Pennsylvania.

All 14 in Downingtown → All 2,597 in Pennsylvania → Every provider in Downingtown →

Other clinical psychologist records in Pennsylvania

  1. Sabra Abboud, PSY.D.York, PA1144406695
  2. David Abelsohn, PHDPlymouth Meeting, PA1467660589
  3. James Abiola, PSY.DHavertown, PA1255062048
  4. Darren Aboyoun, PHDEaston, PA1497718779
  5. Allison Abraham, PSY.D.Southampton, PA1164016929
  6. Allison Abrahamson, PSYDKing Of Prussia, PA1083100952
  7. Scott Abrams, PHDNew Hope, PA1801077011
  8. Iris Abreu, PH.D.Philadelphia, PA1760711147
  9. Erin Abrigo, PH.D.Philadelphia, PA1710380290
  10. Glenn Acker, M.S.Mount Gretna, PA1942451471

Common questions

What is Mary Margaret Lindsay, PH.D.'s NPI number?

Mary Margaret Lindsay, PH.D.'s National Provider Identifier (NPI) is 1558654608, issued on May 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Mary Margaret Lindsay, PH.D. located?

The NPPES record lists a practice address at 151 Woodbine RD, Downingtown, PA, 19335. Phone: (610) 269-2600. Providers update this record themselves, so call before visiting.

How can I verify Mary Margaret Lindsay, PH.D.'s license?

NPPES lists Pennsylvania license number PS006669L, 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. Medicare files from data.cms.gov. 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.