NPPES file of Aug 9, 2026

William A. McCollaum, PSY.D.

Clinical Psychologist · Doylestown, PA

William A. McCollaum, PSY.D. is a clinical psychologist with a practice address in Doylestown, Pennsylvania, and NPI 1710199781, issued on May 4, 2007. Check the license (Pennsylvania PS006008L, 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
1710199781
Name
William A. McCollaum
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PS006008L PA
Self-reported in NPPES; status is on the state search
Practice location
275 S Main St, Doylestown, PA 18901
Phone
(215) 345-5665
Enumerated
May 4, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(215) 345-5700
Medicare enrollment
Enrolled (PECOS I20120213000126); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1989
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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8 nearest clinical psychologist records → All 2,597 in Pennsylvania → Look up another NPI →

Also registered at 275 S Main St

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

  1. Phylesha Banaszynski, MASTER ED.Psychologist1295949352
  2. Marc Carafa, PSY.D.Clinical Psychologist1205185923
  3. Mary McCollaum, CNSNutrition Education Nutritionist1730560574
  4. Christine Messanella, MSPsychologist1750374369
  5. Stacee Paley, MFTMarriage & Family Therapist1689844367
  6. Amanda Walter, MS, LPCMental Health Counselor1891495693

Verify William A. McCollaum 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 PS006008L    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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William A. McCollaum among 2,597 clinical psychologist records in Pennsylvania

William A. McCollaum, PSY.D. is one of 2,597 clinical psychologist records with a practice address in Pennsylvania. 15% 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 2007, is newer than 29% of them.

  • NPI issued2007 · 29% of these records are older, 54% newer
  • In a Medicare fileNo · 15% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated1989 · median 2003 among the 707 with a school on file
  • Record last updated2007 · 65% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 clinical psychologist records list a practice address in Doylestown

They are 32 of the 1,500 NPPES records with a practice address in Doylestown, and 2,597 clinical psychologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,597 in Pennsylvania → Every provider in Doylestown → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Judith Blau, PH.D.Doylestown, PA 189011609932789
  2. Patrick Drudy, PH.D.Doylestown, PA 189011568568715
  3. Debra Finnegan-Suler, PH.D.Doylestown, PA 189011326148958
  4. Linda Gerstley, PH.D.Doylestown, PA 189011316025604
  5. David Greenwald, PHDDoylestown, PA 189011811010192
  6. Edward Hayduk, M.S.Doylestown, PA 189011376693671
  7. Mary Jane Kirkpatrick, PHDDoylestown, PA 189011023177276
  8. John Markey, PSYD CADCDoylestown, PA 189011437209459

Common questions

What is William A. McCollaum, PSY.D.'s NPI number?

William A. McCollaum, PSY.D.'s National Provider Identifier (NPI) is 1710199781, issued on May 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is William A. McCollaum, PSY.D. located?

The NPPES record lists a practice address at 275 S Main St, Doylestown, PA, 18901. Phone: (215) 345-5665. Providers update this record themselves, so call before visiting.

How can I verify William A. McCollaum, PSY.D.'s license?

NPPES lists Pennsylvania license number PS006008L, 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.

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.