NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1639377518 GNP
Verify on CMS → Melissa Claudio, GNP
Gerontology Nurse Practitioner in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,056 in Gerontology Nurse Practitioner, 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
2K
Medicare Part D claims · 206 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Melissa Claudio, GNP filed 2,456 Medicare Part D claims in 2024 as a Gerontology Nurse Practitioner in Phoenix, Arizona, prescribing 98% generic.
- 2K
- Part D claims, 2024
- 98%
- generic prescribing
- ≥86th
- 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 Melissa Claudio, GNP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639377518), first enumerated 07/03/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,456 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1639377518 · Gerontology Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1639377518
- ENUM-MID 2007
- TAX-MID 10K Gerontology Nurse
- RX-MID 2,456
- BOOK-THIN 169 in Arizona
- PHOTO-ENUM Maureen McCann, NP · 2007
Melissa Claudio, GNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,456 ≥ 86th percentile 86% 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 Melissa Claudio, GNP?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
2,456 82% vs specialty avg
Specialty distribution in Arizona
How Gerontology Nurse Practitioner compares to other specialties among Arizona 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 Gerontology Nurse Practitioner. 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 | 1639377518 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | GNP |
| Gender | Female |
| NPI Issued | 07/03/2007 |
Hospital and facility affiliations
Facilities where Melissa Claudio, GNP 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.
Siren Medical PC
Phoenix, AZ
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
Melissa Claudio, GNP - brand share 2.0%
Gerontology Nurse Practitioner average
2% brand-name claims vs 98% generic, on 2,456 2024 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 2024.
2,456
Total Claims
$90K
Total Drug Cost
206
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,506.9
- Total Day Supply
- 55,926
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $28K
- Generic Drug Cost
- $62K
Patient Demographics
- Average Patient Age
- 79.4 years
- Avg HCC Risk Score
- 2.32
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 13, 65-74: 45, 75-84: 81, 85+: 67
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Melissa Claudio, GNP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Quetiapine Fumarate
Quetiapine Fumarate
360 claims
- Buspirone Hcl
Buspirone Hcl
262 claims
- Sertraline Hcl
Sertraline Hcl
233 claims
- Trazodone Hcl
Trazodone Hcl
184 claims
- Divalproex Sodium 131
Divalproex Sodium
131 claims
- Mirtazapine 109
Mirtazapine
109 claims
- Hydroxyzine Pamoate 107
Hydroxyzine Pamoate
107 claims
- Escitalopram Oxalate 98
Escitalopram Oxalate
98 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 360 |
| Buspirone Hcl | 262 |
| Sertraline Hcl | 233 |
| Trazodone Hcl | 184 |
| Divalproex Sodium | 131 |
| Mirtazapine | 109 |
| Hydroxyzine Pamoate | 107 |
| Escitalopram Oxalate | 98 |
| Donepezil Hcl | 81 |
| Memantine Hcl | 80 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Melissa Claudio, GNP fits within the Gerontology Nurse Practitioner landscape nationally.
10,056
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,350
Avg Claims per Provider
Melissa Claudio, GNP's 2,456 claims are above the specialty average of 1,350.
Nationwide Gerontology Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Claudio, both outside Arizona 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 Gerontology Nurse Practitioner Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Claudio.
One of 169 Gerontology Nurse Practitioner providers enrolled in Arizona, 5 are shown here.
Efoui Abotsi-Kowu
NP
Yuma, AZ
Celina Acevedo-Adams
AGACNP-BC
Phoenix, AZ
Marion Adams
N.P.
Tucson, AZ
Chioma Akande
Glendale, AZ
Melanie Anderson
AGPCNP-C
Sun City West, AZ
Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Melissa Claudio, GNP's specialty? ▼
Melissa Claudio, GNP specializes in Gerontology Nurse Practitioner and practices in Phoenix, Arizona. Credentials: GNP.
How much does Melissa Claudio, GNP prescribe under Medicare Part D? ▼
In 2024, Melissa Claudio, GNP wrote 2,456 Medicare Part D claims totaling $90K in drug costs for 206 beneficiaries.
Where is Melissa Claudio, GNP located? ▼
Melissa Claudio, GNP is located at 3003 N CENTRAL AVE, Phoenix, AZ, 85012. Phone: (602) 462-1132.
What is Melissa Claudio, GNP's NPI number? ▼
Melissa Claudio, GNP's National Provider Identifier (NPI) is 1639377518, issued on 07/03/2007.
Does Melissa Claudio, GNP prescribe more brand-name or generic drugs? ▼
Melissa Claudio, GNP's prescribing is 2% brand-name and 98% generic drugs by claim count, with $28K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 10,056 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,350 Medicare Part D claims per year.
What drugs does Melissa Claudio, GNP prescribe most often? ▼
Based on 2024 Medicare Part D data, Melissa Claudio, GNP's most frequently prescribed drugs include Quetiapine Fumarate, Buspirone Hcl, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Melissa Claudio, GNP accept Medicare? ▼
Melissa Claudio, GNP appears in CMS Medicare data with 2,456 Part D claims and 206 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Melissa Claudio, GNP's credentials? ▼
Melissa Claudio, GNP's NPI is 1639377518 with credentials GNP. 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.