NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1508851890 APRN
Verify on CMS → Mary Walker, APRN
Nurse Practitioner in Murray, Utah.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in 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 · 226 beneficiaries · Nurse Practitioner avg: 1K
Industry payments
$27.57
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Mary Walker, APRN filed 1,704 Medicare Part D claims in 2024 as a Nurse Practitioner in Murray, Utah.
- 2K
- Part D claims, 2024
- $27.57
- industry payments (Sunshine Act)
- ≥82nd
- 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 Mary Walker, APRN
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 1508851890), first enumerated 09/13/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,704 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
- Reported
Industry payment transparency
$27.57 in reported industry payments (1 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 1508851890 · Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1508851890
- ENUM-LEGACY 2005
- TAX-MEGA 90K Nurse Practitioner
- RX-MID 1,704
- BOOK-LIGHT 996 in Utah
- PHOTO-ENUM Nancy Holloway, RN W… · 2005
Mary Walker, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,704 ≥ 82nd percentile 82% 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 Mary Walker, APRN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
1,704 49% vs specialty avg
Specialty distribution in Utah
How Nurse Practitioner compares to other specialties among Utah 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 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 | 1508851890 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 09/13/2005 |
Hospital and facility affiliations
Facilities where Mary Walker, APRN 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.
Santibanez Pac Utah
Ivins, UT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Mary Walker, APRN. Source: openpaymentsdata.cms.gov.
Total received
$28
Largest payer
ACADIA Pharmaceuticals Inc
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,704
Total Claims
$81K
Total Drug Cost
226
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,717.667
- Total Day Supply
- 33,933
- Generic Drug Cost
- $34K
- Opioid Claims
- 457 (26.8% rate)
- Antibiotic Claims
- 36
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 2.14
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 35, 65-74: 79, 75-84: 58, 85+: 54
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mary Walker, APRN prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
128 claims
- Oxycodone Hcl
Oxycodone Hcl
117 claims
- Morphine Sulfate
Morphine Sulfate
93 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
85 claims
- Tramadol Hcl
Tramadol Hcl
72 claims
- Naloxone Hcl
Naloxone Hcl
58 claims
- Pantoprazole Sodium
Pantoprazole Sodium
58 claims
- Hydromorphone Hcl 46
Hydromorphone Hcl
46 claims
| Drug | Claims |
|---|---|
| Gabapentin | 128 |
| Oxycodone Hcl | 117 |
| Morphine Sulfate | 93 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 85 |
| Tramadol Hcl | 72 |
| Naloxone Hcl | 58 |
| Pantoprazole Sodium | 58 |
| Hydromorphone Hcl | 46 |
| Potassium Chloride | 44 |
| Pregabalin | 42 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Mary Walker, APRN fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Mary Walker, APRN's 1,704 claims are above the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Walker, both outside Utah so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Utah
Other clinicians with the same primary specialty enrolled in Utah, drawn from the same CMS NPPES roster as Walker.
One of 996 Nurse Practitioner providers enrolled in Utah, 5 are shown here.
Kimberly Abbott
NP
Taylorsville, UT
Samantha Aberton
A.P.R.N FNP
Salt Lake City, UT
Aaron Adams
Ogden, UT
Dustin Adams
APRN
Ogden, UT
Nwanyidirim Ahanonu-Acord
APRN
Salt Lake City, UT
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mary Walker, APRN's specialty? ▼
Mary Walker, APRN specializes in Nurse Practitioner and practices in Murray, Utah. Credentials: APRN.
How much does Mary Walker, APRN prescribe under Medicare Part D? ▼
In 2024, Mary Walker, APRN wrote 1,704 Medicare Part D claims totaling $81K in drug costs for 226 beneficiaries.
Where is Mary Walker, APRN located? ▼
Mary Walker, APRN is located at 5505 S 900 E STE 240, Murray, UT, 84117. Phone: (801) 783-5011.
What is Mary Walker, APRN's NPI number? ▼
Mary Walker, APRN's National Provider Identifier (NPI) is 1508851890, issued on 09/13/2005.
Does Mary Walker, APRN prescribe opioids? ▼
Yes, Mary Walker, APRN had 457 opioid claims in 2024 with an opioid prescribing rate of 26.8%.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Mary Walker, APRN prescribe most often? ▼
Based on 2024 Medicare Part D data, Mary Walker, APRN's most frequently prescribed drugs include Gabapentin, Oxycodone Hcl, Morphine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Walker, APRN accept Medicare? ▼
Mary Walker, APRN appears in CMS Medicare data with 1,704 Part D claims and 226 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Walker, APRN's credentials? ▼
Mary Walker, APRN's NPI is 1508851890 with credentials APRN. 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.