STEPHEN FRATES, FNP
General Practice Registered Nurse in TUCSON, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: STEPHEN FRATES, FNP reported a CMS MIPS final score of 77.4044 out of 100, below the 83.1 national average, and filed 224 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
STEPHEN FRATES, FNP at a glance
Below national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Arizona
How General Practice Registered Nurse compares to other specialties among Arizona providers
General Practice Registered Nurse share within Arizona
General Practice Registered Nurse is one of the more visible NUCC categories in Arizona
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
STEPHEN FRATES, FNP's 2023 MIPS final score plotted against the General Practice Registered Nurse national average
- MIPS Final Score
- 77.4044/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (General Practice Registered Nurse) — 77.4044/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Cost dim CMS Cost category
- Specialty volume General Practice Registered Nurse US NPIs
77.4044/100 MIPS final score — 5.7 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: General Practice Registered Nurse. Quality dim: 81.2452. Cost dim: 59.065.
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).
STEPHEN FRATES, FNP is a General Practice Registered Nurse provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: FNP. NPI: 1811468432. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
STEPHEN FRATES, FNP appears in the CMS NPPES registry as a General Practice Registered Nurse provider holding FNP credentials at 9484 E 22ND ST STE B-1, TUCSON, AZ, 85710, with a listed phone of (480) 677-8282. NPI 1811468432 was issued on 12/07/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FRATES most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 224 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $3K in drug spend, split 8% brand-name and 92% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.4044/100 for the 2023 performance year (Quality 81.2452, Cost 59.065), compared with the national average of 83.1.
General Practice Registered Nurse is a mid-sized specialty nationwide, with 5,478 enrolled providers across 55 states and an average of 1,187 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 | 1811468432 |
|---|---|
| Specialty | General Practice Registered Nurse |
| Credentials | FNP |
| Gender | Male |
| NPI Issued | 12/07/2018 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm STEPHEN FRATES, FNP's current license status, disciplinary history, and board certifications with the Arizona Medical Board in Arizona before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Group practice
Hospital and facility affiliations
Facilities where STEPHEN FRATES, FNP 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.
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
8% brand-name claims vs 92% generic, on 224 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.
Prescribing Breakdown
- 30-Day Fills
- 242
- Total Day Supply
- 2,991
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $656
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 76
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 72% female / 28% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 27 |
| Fluticasone Propionate | 26 |
| Amoxicillin | 21 |
| Prednisone | 18 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 17 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 13 |
| Cephalexin | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Registered Nurse Overview
How STEPHEN FRATES, FNP fits within the General Practice Registered Nurse landscape nationally.
STEPHEN FRATES, FNP's 224 claims are below the specialty average of 1,187.
Nearby General Practice Registered Nurse Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as FRATES.
Compare General Practice Registered Nurse nationally: see state-by-state distribution →
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Frequently Asked Questions
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Data Sources
- 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- 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