NPPES file of Aug 9, 2026

David A. Thomas, DO, PH.D.

Neurology Physician · Glen Mills, PA

David A. Thomas, DO, PH.D. is a neurology physician with a practice address in Glen Mills, Pennsylvania, and NPI 1104870146, issued on May 22, 2006. Check the license (Pennsylvania OS004234L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104870146
Name
David A. Thomas
Credential
DO, PH.D.
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
OS004234L PA
PS004113L PA
Self-reported in NPPES; status is on the state search
Practice location
1788 Wilmington Pike, Glen Mills, PA 19342
Phone
(610) 744-2960
Enumerated
May 22, 2006
Record last updated
Apr 28, 2026
Fax
(610) 744-2420
Medicare enrollment
Enrolled (PECOS I20100929000891); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1978
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 1788 Wilmington Pike

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

  1. Suziliene Board, PSY.D.Clinical Psychologist1396803276
  2. Francien Chenoweth, PSY.DClinical Psychologist1114240975
  3. Sheria Hudson, FAMILY NURSE PRACTITAdult Health Nurse Practitioner1831314400
  4. Marijo Lucas, PH.D.Clinical Psychologist1104054402
  5. Jasoni Morgan, CRNPFamily Medicine Physician1700471984
  6. Brooke Spence, PMHNPNeuroscience Registered Nurse1902729767

Verify David A. Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS004234L
    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
Open 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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6% more Medicare Part D claims than the average neurology physician in 2024

1,447 Medicare Part D claims for 413 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 72 claims were for opioids.

  1. David Thomas1,447
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl124 claims
  2. Gabapentin105 claims
  3. Clonazepam103 claims
  4. Memantine Hcl82 claims
  5. Pregabalin56 claims
  6. Lacosamide51 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 72.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score64.7
  2. Costout of 100 · 30%31.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $405.02

22 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Thomas$405.02
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. David A Thomas, Ltd.Glen Mills, PA

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

David A. Thomas among 1,077 neurology physician records in Pennsylvania

David A. Thomas, DO, PH.D. is one of 1,077 neurology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 63% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1978 · median 2007 among the 727 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Pennsylvania

There are 1,077 neurology physician records in Pennsylvania.

The 8 neurology physician records with the nearest ZIP codes

  1. Seth Haplea, M.D.Kennett Square, PA 193481467408906
  2. Roger Porter, MDDevon, PA 193331376870212
  3. Brian Abaluck, MDMalvern, PA 193551952428070
  4. Gary Friday, MDMalvern, PA 193551558338293
  5. David Long, MDMalvern, PA 193551427116748
  6. Jennifer Chu, M.D.Chadds Ford, PA 193171477843092
  7. Matthew Bloch, MDBerwyn, PA 193121295230449
  8. Lauren Flynn, D.O.Berwyn, PA 193121538310198

Common questions

What is David A. Thomas, DO, PH.D.'s NPI number?

David A. Thomas, DO, PH.D.'s National Provider Identifier (NPI) is 1104870146, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David A. Thomas, DO, PH.D. located?

The NPPES record lists a practice address at 1788 Wilmington Pike, Glen Mills, PA, 19342. Phone: (610) 744-2960. Providers update this record themselves, so call before visiting.

How can I verify David A. Thomas, DO, PH.D.'s license?

NPPES lists Pennsylvania license number OS004234L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David A. Thomas, DO, PH.D. prescribe under Medicare Part D?

In 2024, David A. Thomas, DO, PH.D. had 1,447 Medicare Part D claims for 413 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is David A. Thomas, DO, PH.D.'s MIPS final score?

The 2023 MIPS final score is 72.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.