NPI registry status
Active
2026 NPPES data Adult Psychiatric/Mental Health Clinical Nurse Specialist NPI 1003934282 APRN BC
Verify on CMS → Christopher Allen, APRN BC
Adult Psychiatric/Mental Health Clinical Nurse Specialist in Norwalk, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 960 in Adult Psychiatric/Mental Health Clinical Nurse Specialist, 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
224
Medicare Part D claims · 12 beneficiaries · Adult Psychiatric/Mental Health Clinical Nurse Specialist avg: 1K
What the federal data shows
Christopher Allen, APRN BC filed 224 Medicare Part D claims in 2024 as an Adult Psychiatric/Mental Health Clinical Nurse Specialist in Norwalk, Connecticut.
- 224
- Part D claims, 2024
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Christopher Allen, APRN BC
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1003934282), first enumerated 03/27/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 224 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1003934282 · Adult Psychiatric/Mental Health Clinical Nurse Specialist
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1003934282
- ENUM-MID 2007
- TAX-NARROW 960
- RX-LIGHT 224
- BOOK-THIN 45 in Connecticut
- PHOTO-ENUM Lynn Vanliew, APRN,BC · 2007
Christopher Allen, APRN BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
224 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Christopher Allen, APRN BC?
Quality data not reportedPrimary specialty
Adult Psychiatric/Mental Health Clinical Nurse Specialist
Medicare Part D claims
224 81% vs specialty avg
Specialty distribution in Connecticut
How Adult Psychiatric/Mental Health Clinical Nurse Specialist compares to other specialties among Connecticut 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 Adult Psychiatric/Mental Health Clinical Nurse Specialist. 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).
Practice Address
Provider Details
| NPI | 1003934282 |
|---|---|
| Specialty | Adult Psychiatric/Mental Health Clinical Nurse Specialist |
| Credentials | APRN BC |
| Gender | Male |
| NPI Issued | 03/27/2007 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
224
Total Claims
$2K
Total Drug Cost
12
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 265
- Total Day Supply
- 7,801
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 66.2 years
- Avg HCC Risk Score
- 0.59
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christopher Allen, APRN BC prescribes most
Top Medicare Part D drugs by claim count, 2024
- Lamotrigine
Lamotrigine
40 claims
- Bupropion Xl
Bupropion Xl
37 claims
- Trazodone Hcl
Trazodone Hcl
19 claims
- Zolpidem Tartrate
Zolpidem Tartrate
18 claims
- Quetiapine Fumarate
Quetiapine Fumarate
16 claims
- Sertraline Hcl 15
Sertraline Hcl
15 claims
- Escitalopram Oxalate 14
Escitalopram Oxalate
14 claims
- Duloxetine Hcl 13
Duloxetine Hcl
13 claims
| Drug | Claims |
|---|---|
| Lamotrigine | 40 |
| Bupropion Xl Bupropion Hcl | 37 |
| Trazodone Hcl | 19 |
| Zolpidem Tartrate | 18 |
| Quetiapine Fumarate | 16 |
| Sertraline Hcl | 15 |
| Escitalopram Oxalate | 14 |
| Duloxetine Hcl | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Psychiatric/Mental Health Clinical Nurse Specialist in CT →
All providers in Connecticut →
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Adult Psychiatric/Mental Health Clinical Nurse Specialist Overview
How Christopher Allen, APRN BC fits within the Adult Psychiatric/Mental Health Clinical Nurse Specialist landscape nationally.
960
Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in US
51
States with Adult Psychiatric/Mental Health Clinical Nurse Specialist
1,206
Avg Claims per Provider
Christopher Allen, APRN BC's 224 claims are below the specialty average of 1,206.
Nationwide Adult Psychiatric/Mental Health Clinical Nurse Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Allen, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Allen.
One of 45 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers enrolled in Connecticut, 5 are shown here.
Frequently Asked Questions
What is Christopher Allen, APRN BC's specialty? ▼
Christopher Allen, APRN BC specializes in Adult Psychiatric/Mental Health Clinical Nurse Specialist and practices in Norwalk, Connecticut. Credentials: APRN BC.
How much does Christopher Allen, APRN BC prescribe under Medicare Part D? ▼
In 2024, Christopher Allen, APRN BC wrote 224 Medicare Part D claims totaling $2K in drug costs for 12 beneficiaries.
Where is Christopher Allen, APRN BC located? ▼
Christopher Allen, APRN BC is located at 71 EAST AVENUE, Norwalk, CT, 06851. Phone: (203) 838-1678.
What is Christopher Allen, APRN BC's NPI number? ▼
Christopher Allen, APRN BC's National Provider Identifier (NPI) is 1003934282, issued on 03/27/2007.
How many Adult Psychiatric/Mental Health Clinical Nurse Specialist providers are there in the US? ▼
There are 960 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers across 51 states in the US. The average Adult Psychiatric/Mental Health Clinical Nurse Specialist provider writes 1,206 Medicare Part D claims per year.
What drugs does Christopher Allen, APRN BC prescribe most often? ▼
Based on 2024 Medicare Part D data, Christopher Allen, APRN BC's most frequently prescribed drugs include Lamotrigine, Bupropion Xl, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Allen, APRN BC accept Medicare? ▼
Christopher Allen, APRN BC appears in CMS Medicare data with 224 Part D claims and 12 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Allen, APRN BC's credentials? ▼
Christopher Allen, APRN BC's NPI is 1003934282 with credentials APRN BC. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.