NPI registry status
Active
2026 NPPES data Registered Dietitian NPI 1548300585 MPH, PA-C, RD, CDE
Verify on CMS → Shanna McGrath, MPH, PA-C, RD, CDE
Registered Dietitian in Wasilla, Alaska.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,580 in Registered Dietitian, 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
90
Medicare Part D claims · 46 beneficiaries · Registered Dietitian avg: 696
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.2/100
▲ 0 pts above national avg 83.1 · Above neutral
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
Shanna McGrath, MPH, PA-C, RD, CDE reported a CMS MIPS final score of 83.2/100 - above the 83.1 national average - and filed 90 Medicare Part D claims in 2023.
- 83.2/100
- MIPS score · +0 vs avg
- 90
- Part D claims, 2023
- 78%
- generic prescribing
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.
Shanna McGrath, MPH, PA-C, RD, CDE's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
83 42nd percentile higher than 42% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Shanna McGrath, MPH, PA-C, RD, CDE sits
This provider among registered dietitian peers
Across the 67 registered dietitian providers who report both Medicare Part D prescribing and a MIPS quality score, Shanna McGrath, MPH, PA-C, RD, CDE writes more Part D claims than 21% of them and scores higher on MIPS quality than 37% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one registered dietitian peer from a representative sample of 60; the gold marker is Shanna McGrath, MPH, PA-C, RD, CDE. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Shanna McGrath, MPH, PA-C, RD, CDE?
Near national averagePrimary specialty
Registered Dietitian
Medicare Part D claims
90 87% vs specialty avg
MIPS final score
83.2/100 0.1 pts vs avg
Specialty distribution in Alaska
How Registered Dietitian compares to other specialties among Alaska providers
Medicare quality performance, MIPS
Shanna McGrath, MPH, PA-C, RD, CDE's 2023 MIPS final score plotted against the Registered Dietitian national average
- MIPS Final Score
- 83.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Registered Dietitian) - 83.2/100 vs national avg 83.1
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).
Shanna McGrath, MPH, PA-C, RD, CDE appears in the CMS NPPES registry as a Registered Dietitian provider holding MPH, PA-C, RD, CDE credentials at 1001 S KNIK GOOSE BAY RD, Wasilla, AK, 99654, with a listed phone of (907) 631-7800. NPI 1548300585 was issued on 02/07/2007.
Medicare Part D records for calendar year 2023 show 90 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $11K in drug spend, split 22% brand-name and 78% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.2/100 for the 2023 performance year (Quality 77.2, Cost 50.2), compared with the national average of 83.1.
Registered Dietitian is a high-volume specialty nationwide, with 64,580 enrolled providers across 55 states and an average of 696 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 | 1548300585 |
|---|---|
| Specialty | Registered Dietitian |
| Credentials | MPH, PA-C, RD, CDE |
| Gender | Female |
| NPI Issued | 02/07/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.2324
Final Score
Avg: 83.1
77.2003
Quality
50.241
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
Shanna McGrath, MPH, PA-C, RD, CDE - brand share 22.0%
Registered Dietitian average
22% brand-name claims vs 78% generic, on 90 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.
90
Total Claims
$11K
Total Drug Cost
46
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 116
- Total Day Supply
- 2,334
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 68.2 years
- Avg HCC Risk Score
- 0.81
Registered Dietitian Overview
How Shanna McGrath, MPH, PA-C, RD, CDE fits within the Registered Dietitian landscape nationally.
64,580
Registered Dietitian Providers in US
55
States with Registered Dietitian
696
Avg Claims per Provider
Shanna McGrath, MPH, PA-C, RD, CDE's 90 claims are below the specialty average of 696.
Nearby Registered Dietitian Providers in Alaska
Other clinicians with the same primary specialty enrolled in Alaska, drawn from the same CMS NPPES roster as McGrath.
Dr. Meghan Adair
RDN LD
Anchorage, AK
Dr. Marcia Anderson
RD
Soldotna, AK
Seth Anderson
Anchorage, AK
Dr. Tiffany Andres
MS, RD
Sitka, AK
Dr. Genevieve Armstrong
RD, LD
Juneau, AK
Compare Registered Dietitian 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 Alaska medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Dietitian 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 Shanna McGrath, MPH, PA-C, RD, CDE's specialty? ▼
Shanna McGrath, MPH, PA-C, RD, CDE specializes in Registered Dietitian and practices in Wasilla, Alaska. Credentials: MPH, PA-C, RD, CDE.
How much does Shanna McGrath, MPH, PA-C, RD, CDE prescribe under Medicare Part D? ▼
In 2023, Shanna McGrath, MPH, PA-C, RD, CDE wrote 90 Medicare Part D claims totaling $11K in drug costs for 46 beneficiaries.
What is Shanna McGrath, MPH, PA-C, RD, CDE's Medicare quality score? ▼
Shanna McGrath, MPH, PA-C, RD, CDE has a CMS MIPS Final Score of 83.2/100 (Quality: 77.2, Cost: 50.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Shanna McGrath, MPH, PA-C, RD, CDE located? ▼
Shanna McGrath, MPH, PA-C, RD, CDE is located at 1001 S KNIK GOOSE BAY RD, Wasilla, AK, 99654. Phone: (907) 631-7800.
What is Shanna McGrath, MPH, PA-C, RD, CDE's NPI number? ▼
Shanna McGrath, MPH, PA-C, RD, CDE's National Provider Identifier (NPI) is 1548300585, issued on 02/07/2007.
Does Shanna McGrath, MPH, PA-C, RD, CDE prescribe more brand-name or generic drugs? ▼
Shanna McGrath, MPH, PA-C, RD, CDE's prescribing is 22% brand-name and 78% generic drugs by claim count, with $9K in brand drug costs.
How many Registered Dietitian providers are there in the US? ▼
There are 64,580 Registered Dietitian providers across 55 states in the US. The average Registered Dietitian provider writes 696 Medicare Part D claims per year.
Does Shanna McGrath, MPH, PA-C, RD, CDE accept Medicare? ▼
Shanna McGrath, MPH, PA-C, RD, CDE appears in CMS Medicare data with 90 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shanna McGrath, MPH, PA-C, RD, CDE's credentials? ▼
Shanna McGrath, MPH, PA-C, RD, CDE's NPI is 1548300585 with credentials MPH, PA-C, RD, CDE. 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.
- 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
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.