NPI registry status
Active
2026 NPPES data Clinical Neuropsychologist NPI 1437272945 PH.D, M.P.
Verify on CMS → Glenn Ally, PH.D, M.P.
Clinical Neuropsychologist in Lafayette, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,734 in Clinical Neuropsychologist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 137 beneficiaries · Clinical Neuropsychologist avg: 877
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Glenn Ally, PH.D, M.P. filed 2,779 Medicare Part D claims in 2023 as a Clinical Neuropsychologist in Lafayette, Louisiana, prescribing 94% generic.
- 3K
- Part D claims, 2023
- 94%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Glenn Ally, PH.D, M.P.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,779 Top 12% higher than 88% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Glenn Ally, PH.D, M.P.?
Quality data not reportedPrimary specialty
Clinical Neuropsychologist
Medicare Part D claims
2,779 217% vs specialty avg
Specialty distribution in Louisiana
How Clinical Neuropsychologist compares to other specialties among Louisiana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Clinical Neuropsychologist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Glenn Ally, PH.D, M.P. appears in the CMS NPPES registry as a Clinical Neuropsychologist provider holding PH.D, M.P. credentials at 155 HOSPITAL DR, Lafayette, LA, 70503, with a listed phone of (337) 235-8304. NPI 1437272945 was issued on 04/09/2007.
Medicare Part D records for calendar year 2023 show 2,779 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $353K in drug spend, split 6% brand-name and 94% generic by claim count.
Clinical Neuropsychologist is a mid-sized specialty nationwide, with 5,734 enrolled providers across 53 states and an average of 877 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1437272945 |
|---|---|
| Specialty | Clinical Neuropsychologist |
| Credentials | PH.D, M.P. |
| Gender | Male |
| NPI Issued | 04/09/2007 |
Hospital and facility affiliations
Facilities where Glenn Ally, PH.D, M.P. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Acadiana Area Human Services District
Lafayette, LA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Glenn Ally, PH.D, M.P. - brand share 6.0%
Clinical Neuropsychologist average
6% brand-name claims vs 94% generic, on 2,779 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,779
Total Claims
$353K
Total Drug Cost
137
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,405
- Total Day Supply
- 101,039
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $269K
- Generic Drug Cost
- $83K
Patient Demographics
- Average Patient Age
- 57.2 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 95, 65-74: 38, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Glenn Ally, PH.D, M.P. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Quetiapine Fumarate
Quetiapine Fumarate
251 claims
- Trazodone Hcl
Trazodone Hcl
158 claims
- Duloxetine Hcl
Duloxetine Hcl
149 claims
- Benztropine Mesylate
Benztropine Mesylate
148 claims
- Fluoxetine Hcl
Fluoxetine Hcl
127 claims
- Hydroxyzine Hcl
Hydroxyzine Hcl
121 claims
- Bupropion Xl
Bupropion Xl
108 claims
- Aripiprazole 99
Aripiprazole
99 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 251 |
| Trazodone Hcl | 158 |
| Duloxetine Hcl | 149 |
| Benztropine Mesylate | 148 |
| Fluoxetine Hcl | 127 |
| Hydroxyzine Hcl | 121 |
| Bupropion Xl Bupropion Hcl | 108 |
| Aripiprazole | 99 |
| Buspirone Hcl | 99 |
| Mirtazapine | 91 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Neuropsychologist Overview
How Glenn Ally, PH.D, M.P. fits within the Clinical Neuropsychologist landscape nationally.
5,734
Clinical Neuropsychologist Providers in US
53
States with Clinical Neuropsychologist
877
Avg Claims per Provider
Glenn Ally, PH.D, M.P.'s 2,779 claims are above the specialty average of 877.
Nearby Clinical Neuropsychologist Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Ally.
Dr. Joel Abrahams
PH.D.
Harahan, LA
Dr. Julie Alvarez
PHD
New Orleans, LA
Dr. Susan Andrews
PH D
Metairie, LA
Dr. Irving Arevalo
PH.D.
Metairie, LA
Dr. Lynn Aurich
PH.D.
Lafayette, LA
Compare Clinical Neuropsychologist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Louisiana medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Neuropsychologist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Glenn Ally, PH.D, M.P.'s specialty? ▼
Glenn Ally, PH.D, M.P. specializes in Clinical Neuropsychologist and practices in Lafayette, Louisiana. Credentials: PH.D, M.P..
How much does Glenn Ally, PH.D, M.P. prescribe under Medicare Part D? ▼
In 2023, Glenn Ally, PH.D, M.P. wrote 2,779 Medicare Part D claims totaling $353K in drug costs for 137 beneficiaries.
Where is Glenn Ally, PH.D, M.P. located? ▼
Glenn Ally, PH.D, M.P. is located at 155 HOSPITAL DR, Lafayette, LA, 70503. Phone: (337) 235-8304.
What is Glenn Ally, PH.D, M.P.'s NPI number? ▼
Glenn Ally, PH.D, M.P.'s National Provider Identifier (NPI) is 1437272945, issued on 04/09/2007.
Does Glenn Ally, PH.D, M.P. prescribe more brand-name or generic drugs? ▼
Glenn Ally, PH.D, M.P.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $269K in brand drug costs.
How many Clinical Neuropsychologist providers are there in the US? ▼
There are 5,734 Clinical Neuropsychologist providers across 53 states in the US. The average Clinical Neuropsychologist provider writes 877 Medicare Part D claims per year.
What drugs does Glenn Ally, PH.D, M.P. prescribe most often? ▼
Based on 2023 Medicare Part D data, Glenn Ally, PH.D, M.P.'s most frequently prescribed drugs include Quetiapine Fumarate, Trazodone Hcl, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Glenn Ally, PH.D, M.P. accept Medicare? ▼
Glenn Ally, PH.D, M.P. appears in CMS Medicare data with 2,779 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Glenn Ally, PH.D, M.P.'s credentials? ▼
Glenn Ally, PH.D, M.P.'s NPI is 1437272945 with credentials PH.D, M.P.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.