NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1225098353 MD
Verify on CMS → Shelley Zaun, MD
Adult Medicine Physician in Eagan, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,481 in Adult Medicine Physician, 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
11K
Medicare Part D claims · 340 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Shelley Zaun, MD filed 11,232 Medicare Part D claims in 2023 as a Adult Medicine Physician in Eagan, Minnesota, prescribing 89% generic.
- 11K
- Part D claims, 2023
- 89%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Shelley Zaun, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
11,232 Top 2% higher than 98% 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
✓
Board certification likely (heuristic, not verified)
Shelley Zaun, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Shelley Zaun, MD?
Quality data not reportedPrimary specialty
Adult Medicine Physician
Medicare Part D claims
11,232 300% vs specialty avg
Specialty distribution in Minnesota
How Adult Medicine Physician compares to other specialties among Minnesota 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 Adult Medicine Physician. 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).
Shelley Zaun, MD appears in the CMS NPPES registry as a Adult Medicine Physician provider holding MD credentials at 2000 RAHNCLIFF CT, Eagan, MN, 55122, with a listed phone of (612) 515-8809. NPI 1225098353 was issued on 03/24/2006.
Medicare Part D records for calendar year 2023 show 11,232 prescription claims written by this provider, covering 340 Medicare beneficiaries and totaling roughly $755K in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 0.6%.
Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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 | 1225098353 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 03/24/2006 |
Hospital and facility affiliations
Facilities where Shelley Zaun, MD 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.
Herself Health MN PC
Saint Paul, MN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Shelley Zaun, MD - brand share 10.0%
Adult Medicine Physician average
10% brand-name claims vs 89% generic, on 11,232 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.
11,232
Total Claims
$755K
Total Drug Cost
340
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,582
- Total Day Supply
- 300,561
- Brand vs Generic
- 10% brand / 89% generic
- Brand Drug Cost
- $534K
- Generic Drug Cost
- $218K
- Opioid Claims
- 66 (0.6% rate)
- Antibiotic Claims
- 164
Patient Demographics
- Average Patient Age
- 84.7 years
- Avg HCC Risk Score
- 2.50
- Gender Split
- 68% female / 32% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Shelley Zaun, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
481 claims
- Levothyroxine Sodium
Levothyroxine Sodium
471 claims
- Atorvastatin Calcium
Atorvastatin Calcium
449 claims
- Furosemide
Furosemide
447 claims
- Amlodipine Besylate
Amlodipine Besylate
431 claims
- Omeprazole
Omeprazole
356 claims
- Gabapentin
Gabapentin
349 claims
- Lisinopril
Lisinopril
343 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 481 |
| Levothyroxine Sodium | 471 |
| Atorvastatin Calcium | 449 |
| Furosemide | 447 |
| Amlodipine Besylate | 431 |
| Omeprazole | 356 |
| Gabapentin | 349 |
| Lisinopril | 343 |
| Mirtazapine | 316 |
| Sertraline Hcl | 263 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Medicine Physician Overview
How Shelley Zaun, MD fits within the Adult Medicine Physician landscape nationally.
2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider
Shelley Zaun, MD's 11,232 claims are above the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Zaun.
Dr. Amy Bennett
MD
Plymouth, MN
Dr. Lindsay Emmerich
PAC
Edina, MN
Dr. Sherry Hemauer
CNP
Saint Paul, MN
Dr. Larry Kotek
M.D.
Edina, MN
Dr. Ann Ludwig
MD
Edina, MN
Compare Adult Medicine Physician 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Medicine Physician 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 Shelley Zaun, MD's specialty? ▼
Shelley Zaun, MD specializes in Adult Medicine Physician and practices in Eagan, Minnesota. Credentials: MD.
How much does Shelley Zaun, MD prescribe under Medicare Part D? ▼
In 2023, Shelley Zaun, MD wrote 11,232 Medicare Part D claims totaling $755K in drug costs for 340 beneficiaries.
Where is Shelley Zaun, MD located? ▼
Shelley Zaun, MD is located at 2000 RAHNCLIFF CT, Eagan, MN, 55122. Phone: (612) 515-8809.
What is Shelley Zaun, MD's NPI number? ▼
Shelley Zaun, MD's National Provider Identifier (NPI) is 1225098353, issued on 03/24/2006.
Does Shelley Zaun, MD prescribe more brand-name or generic drugs? ▼
Shelley Zaun, MD's prescribing is 10% brand-name and 89% generic drugs by claim count, with $534K in brand drug costs.
Does Shelley Zaun, MD prescribe opioids? ▼
Yes, Shelley Zaun, MD had 66 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does Shelley Zaun, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Shelley Zaun, MD's most frequently prescribed drugs include Metoprolol Succinate, Levothyroxine Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shelley Zaun, MD accept Medicare? ▼
Shelley Zaun, MD appears in CMS Medicare data with 11,232 Part D claims and 340 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shelley Zaun, MD's credentials? ▼
Shelley Zaun, MD's NPI is 1225098353 with credentials MD. 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.