ANN GUSTAFSON-LARSON, RN, CNP
Registered Dietitian in ST CLOUD, Minnesota. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
ANN GUSTAFSON-LARSON, RN, CNP filed 1,788 Medicare Part D claims in 2023 as a Registered Dietitian in ST CLOUD, Minnesota, prescribing 38% generic.
- 2K
- Part D claims, 2023
- 38%
- generic prescribing
- $49.19
- 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.
ANN GUSTAFSON-LARSON, RN, CNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
1,788 Top 17% higher than 83% 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 ANN GUSTAFSON-LARSON, RN, CNP?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Minnesota
How Registered Dietitian compares to other specialties among Minnesota providers
Registered Dietitian share within Minnesota
Registered Dietitian is one of the more visible NUCC categories in Minnesota
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.
Specialty board-certification context
Estimated specialty board-certified rate — Registered Dietitian (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Registered Dietitian ABMS/AOA estimate
Est. board-certified rate (Registered Dietitian) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Registered Dietitian US NPIs
Specialty board-certified rate — Registered Dietitian estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
ANN GUSTAFSON-LARSON, RN, CNP appears in the CMS NPPES registry as a Registered Dietitian provider holding RN, CNP credentials at 1900 CENTRA CARE CIRCLE #2500, ST CLOUD, MN, 56303, with a listed phone of (320) 229-5000. NPI 1952420333 was issued on 03/28/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUSTAFSON-LARSON 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 1,788 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 62% brand-name and 38% 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.
Registered Dietitian is a high-volume specialty nationwide, with 64,100 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 | 1952420333 |
|---|---|
| Specialty | Registered Dietitian |
| Credentials | RN, CNP |
| Gender | Female |
| NPI Issued | 03/28/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm ANN GUSTAFSON-LARSON, RN, CNP's current license status, disciplinary history, and board certifications with the Minnesota Board of Medical Practice in Minnesota before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where ANN GUSTAFSON-LARSON, RN, CNP 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).
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 ANN GUSTAFSON-LARSON, RN, CNP. Source: openpaymentsdata.cms.gov.
Total received
$49
Largest payer
Lilly USA, LLC
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 · Brand-heavy
62% brand-name claims vs 38% generic, on 1,788 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
- 3,423
- Total Day Supply
- 99,348
- Brand vs Generic
- 62% brand / 38% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 68.0 years
- Avg HCC Risk Score
- 2.03
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 41, 65-74: 75, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What ANN GUSTAFSON-LARSON, RN, CNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Novolog Flexpen
Novolog Flexpen
137 claims
- Metformin Hcl Er
Metformin Hcl Er
129 claims
- Trulicity
Trulicity
95 claims
- Metformin Hcl
Metformin Hcl
78 claims
- Humalog Kwikpen U-…
Humalog Kwikpen U-100
75 claims
- Ozempic
Ozempic
72 claims
- Jardiance
Jardiance
71 claims
- Tresiba Flextouch … 46
Tresiba Flextouch U-200
46 claims
| Drug | Claims |
|---|---|
| Novolog Flexpen Insulin Aspart | 137 |
| Metformin Hcl Er Metformin Hcl | 129 |
| Trulicity Dulaglutide | 95 |
| Metformin Hcl | 78 |
| Humalog Kwikpen U-100 Insulin Lispro | 75 |
| Ozempic Semaglutide | 72 |
| Jardiance Empagliflozin | 71 |
| Tresiba Flextouch U-200 Insulin Degludec | 46 |
| Glimepiride | 44 |
| Insulin Aspart Flexpen Insulin Aspart | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Dietitian Overview
How ANN GUSTAFSON-LARSON, RN, CNP fits within the Registered Dietitian landscape nationally.
ANN GUSTAFSON-LARSON, RN, CNP's 1,788 claims are above the specialty average of 696.
Nearby Registered Dietitian Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as GUSTAFSON-LARSON.
Compare Registered Dietitian nationally: see state-by-state distribution →
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Frequently Asked Questions
What is ANN GUSTAFSON-LARSON, RN, CNP's specialty? ▼
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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.
- 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