NPI registry status
Active
2026 NPPES data Oncology Registered Nurse NPI 1770003253 NP-C
Verify on CMS → Rebecca Hummer, NP-C
Oncology Registered Nurse in Tucson, 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 883 in Oncology Registered Nurse, 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
177
Medicare Part D claims · 79 beneficiaries · Oncology Registered Nurse avg: 555
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$912.64
32 payments · CMS Open Payments (Sunshine Act)
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
Rebecca Hummer, NP-C filed 177 Medicare Part D claims in 2023 as a Oncology Registered Nurse in Tucson, Arizona, prescribing 69% generic.
- 177
- Part D claims, 2023
- 69%
- generic prescribing
- $912.64
- industry payments (Sunshine Act)
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.
Rebecca Hummer, NP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
177 35th percentile higher than 35% 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 Rebecca Hummer, NP-C?
Quality data not reportedPrimary specialty
Oncology Registered Nurse
Medicare Part D claims
177 68% vs specialty avg
Specialty distribution in Arizona
How Oncology Registered Nurse 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 Oncology Registered Nurse. 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).
Rebecca Hummer, NP-C appears in the CMS NPPES registry as an Oncology Registered Nurse provider holding NP-C credentials at 6296 E GRANT RD STE 140, Tucson, AZ, 85712, with a listed phone of (520) 298-3321. NPI 1770003253 was issued on 06/26/2017.
Medicare Part D records for calendar year 2023 show 177 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $48K in drug spend, split 31% brand-name and 69% generic by claim count.
Oncology Registered Nurse is a narrow specialty nationwide, with 883 enrolled providers across 50 states and an average of 555 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 | 1770003253 |
|---|---|
| Specialty | Oncology Registered Nurse |
| Credentials | NP-C |
| Gender | Female |
| NPI Issued | 06/26/2017 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Rebecca Hummer, NP-C. Source: openpaymentsdata.cms.gov.
Total received
$913
Largest payer
CSL Behring
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Rebecca Hummer, NP-C - brand share 31.0%
Oncology Registered Nurse average
31% brand-name claims vs 69% generic, on 177 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.
177
Total Claims
$48K
Total Drug Cost
79
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 331
- Total Day Supply
- 9,065
- Brand vs Generic
- 31% brand / 69% generic
- Brand Drug Cost
- $43K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 0.96
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rebecca Hummer, NP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
14 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
12 claims
- Azelastine Hcl
Azelastine Hcl
12 claims
- Breo Ellipta
Breo Ellipta
11 claims
- Fluticasone-Salmet…
Fluticasone-Salmeterol
11 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 14 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
| Azelastine Hcl | 12 |
| Breo Ellipta Fluticasone/Vilanterol | 11 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Oncology Registered Nurse Overview
How Rebecca Hummer, NP-C fits within the Oncology Registered Nurse landscape nationally.
883
Oncology Registered Nurse Providers in US
50
States with Oncology Registered Nurse
555
Avg Claims per Provider
Rebecca Hummer, NP-C's 177 claims are below the specialty average of 555.
Nearby Oncology Registered Nurse Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Hummer.
Dr. Alia Al-Alawi
RN
Mesa, AZ
Dr. Alyssa Arvizo
RN
Tucson, AZ
Dr. Jennifer Bernt
FNP
Chandler, AZ
Dr. Eryn Berry
NP-C
Scottsdale, AZ
Dr. Kimberly Briggs
RN
Tucson, AZ
Compare Oncology Registered Nurse 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oncology Registered Nurse 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 Rebecca Hummer, NP-C's specialty? ▼
Rebecca Hummer, NP-C specializes in Oncology Registered Nurse and practices in Tucson, Arizona. Credentials: NP-C.
How much does Rebecca Hummer, NP-C prescribe under Medicare Part D? ▼
In 2023, Rebecca Hummer, NP-C wrote 177 Medicare Part D claims totaling $48K in drug costs for 79 beneficiaries.
Where is Rebecca Hummer, NP-C located? ▼
Rebecca Hummer, NP-C is located at 6296 E GRANT RD STE 140, Tucson, AZ, 85712. Phone: (520) 298-3321.
What is Rebecca Hummer, NP-C's NPI number? ▼
Rebecca Hummer, NP-C's National Provider Identifier (NPI) is 1770003253, issued on 06/26/2017.
Does Rebecca Hummer, NP-C prescribe more brand-name or generic drugs? ▼
Rebecca Hummer, NP-C's prescribing is 31% brand-name and 69% generic drugs by claim count, with $43K in brand drug costs.
How many Oncology Registered Nurse providers are there in the US? ▼
There are 883 Oncology Registered Nurse providers across 50 states in the US. The average Oncology Registered Nurse provider writes 555 Medicare Part D claims per year.
What drugs does Rebecca Hummer, NP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Rebecca Hummer, NP-C's most frequently prescribed drugs include Fluticasone Propionate, Albuterol Sulfate Hfa, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rebecca Hummer, NP-C accept Medicare? ▼
Rebecca Hummer, NP-C appears in CMS Medicare data with 177 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rebecca Hummer, NP-C's credentials? ▼
Rebecca Hummer, NP-C's NPI is 1770003253 with credentials NP-C. 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.