NPI registry status
Active
2026 NPPES data Critical Care Medicine Registered Nurse NPI 1033858592 NP
Verify on CMS → Sarah Walter, NP
Critical Care Medicine 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 6,553 in Critical Care Medicine 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
524
Medicare Part D claims · 153 beneficiaries · Critical Care Medicine Registered Nurse avg: 752
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$129.26
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sarah Walter, NP filed 524 Medicare Part D claims in 2023 as a Critical Care Medicine Registered Nurse in Tucson, Arizona, prescribing 82% generic.
- 524
- Part D claims, 2023
- 82%
- generic prescribing
- $129.26
- industry payments (Sunshine Act)
- ≥66th
- 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 Sarah Walter, NP
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 1033858592), first enumerated 06/02/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 524 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$129.26 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1033858592 · Critical Care Medicine Registered Nurse
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1033858592
- ENUM-RECENT 2022
- TAX-MID 7K Critical Care
- RX-LIGHT 524
- BOOK-THIN 226 in Arizona
- PHOTO-ENUM Cecilia Gutwald · 2022
Sarah Walter, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
524 ≥ 66th percentile 66% of 1,370,886 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 · 2023
What does the federal data show about Sarah Walter, NP?
Quality data not reportedPrimary specialty
Critical Care Medicine Registered Nurse
Medicare Part D claims
524 30% vs specialty avg
Specialty distribution in Arizona
How Critical Care Medicine 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 Critical Care Medicine 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).
Practice Address
Provider Details
| NPI | 1033858592 |
|---|---|
| Specialty | Critical Care Medicine Registered Nurse |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 06/02/2022 |
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 Sarah Walter, NP. Source: openpaymentsdata.cms.gov.
Total received
$129
Largest payer
Baxter Healthcare
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 · Typical
Sarah Walter, NP - brand share 18.0%
Critical Care Medicine Registered Nurse average
18% brand-name claims vs 82% generic, on 524 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.
524
Total Claims
$91K
Total Drug Cost
153
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,208
- Total Day Supply
- 35,206
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $70K
- Generic Drug Cost
- $21K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 4.91
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 33, 65-74: 61, 75-84: 39, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sarah Walter, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
40 claims
- Farxiga
Farxiga
36 claims
- Furosemide
Furosemide
31 claims
- Hydralazine Hcl
Hydralazine Hcl
27 claims
- Calcium Acetate
Calcium Acetate
23 claims
- Carvedilol
Carvedilol
21 claims
- Midodrine Hcl
Midodrine Hcl
19 claims
- Amlodipine Besylate
Amlodipine Besylate
18 claims
| Drug | Claims |
|---|---|
| Lisinopril | 40 |
| Farxiga Dapagliflozin Propanediol | 36 |
| Furosemide | 31 |
| Hydralazine Hcl | 27 |
| Calcium Acetate | 23 |
| Carvedilol | 21 |
| Midodrine Hcl | 19 |
| Amlodipine Besylate | 18 |
| Gabapentin | 18 |
| Losartan Potassium | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine Registered Nurse in AZ →
All providers in Arizona →
Compare specialties →
Critical Care Medicine Registered Nurse Overview
How Sarah Walter, NP fits within the Critical Care Medicine Registered Nurse landscape nationally.
6,553
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
752
Avg Claims per Provider
Sarah Walter, NP's 524 claims are below the specialty average of 752.
Nationwide Critical Care Medicine Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Walter, both outside Arizona so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine Registered Nurse Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Walter.
One of 226 Critical Care Medicine Registered Nurse providers enrolled in Arizona, 5 are shown here.
Dr. Andrea Aarseth
RN
Phoenix, AZ
Jones Abankwa
Goodyear, AZ
Jessica Abawi
Chandler, AZ
Lourdes Acuna
Tucson, AZ
Dr. Kalekia Adams
DNP
Scottsdale, AZ
Compare Critical Care Medicine Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sarah Walter, NP's specialty? ▼
Sarah Walter, NP specializes in Critical Care Medicine Registered Nurse and practices in Tucson, Arizona. Credentials: NP.
How much does Sarah Walter, NP prescribe under Medicare Part D? ▼
In 2023, Sarah Walter, NP wrote 524 Medicare Part D claims totaling $91K in drug costs for 153 beneficiaries.
Where is Sarah Walter, NP located? ▼
Sarah Walter, NP is located at 1845 W. ORANGE GROVE RD, Tucson, AZ, 85704. Phone: (520) 623-2642.
What is Sarah Walter, NP's NPI number? ▼
Sarah Walter, NP's National Provider Identifier (NPI) is 1033858592, issued on 06/02/2022.
Does Sarah Walter, NP prescribe more brand-name or generic drugs? ▼
Sarah Walter, NP's prescribing is 18% brand-name and 82% generic drugs by claim count, with $70K in brand drug costs.
How many Critical Care Medicine Registered Nurse providers are there in the US? ▼
There are 6,553 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 752 Medicare Part D claims per year.
What drugs does Sarah Walter, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Walter, NP's most frequently prescribed drugs include Lisinopril, Farxiga, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Walter, NP accept Medicare? ▼
Sarah Walter, NP appears in CMS Medicare data with 524 Part D claims and 153 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Walter, NP's credentials? ▼
Sarah Walter, NP's NPI is 1033858592 with credentials NP. 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
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.