2026 NPPES data Adult Medicine Physician NPI 1225098353 MD
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SHELLEY ZAUN, MD

Adult Medicine Physician in EAGAN, Minnesota. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
11K
Medicare Part D claims · 340 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SHELLEY ZAUN, MD is a Adult Medicine Physician ([object Object]) practicing in EAGAN, Minnesota with a Medicare Part D prescribing footprint of 11K claims across 340 beneficiaries — 10% brand-name prescribing .

What stands out: SHELLEY ZAUN, MD filed 11,232 Medicare Part D claims in 2023 across EAGAN, Minnesota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

SHELLEY ZAUN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/24/2006

NPI 1225098353

Primary specialty

Adult Medicine Physician

Niche

2,481 US NPIs in this specialty

Medicare Part D claims

11,232 300% vs specialty avg

2023 prescription claims

Specialty avg: 2,807

Specialty distribution in Minnesota

How Adult Medicine Physician compares to other specialties among Minnesota providers

Minnesota providers

Adult Medicine Physician share within Minnesota

1. Adult Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Medicine Physician share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Adult Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Adult Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Medicine Physician) — ABMS / AOA estimate

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 is a Adult Medicine Physician provider practicing in EAGAN, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1225098353. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZAUN 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 11,232 prescription claims written by this provider, covering 340 Medicare beneficiaries and totaling roughly $755K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 0.6%. 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.

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

2000 RAHNCLIFF CT
EAGAN, MN 55122

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%
Specialty average (est.)

10% brand-name claims vs 90% 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 / 90% 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.

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.

Compare Adult Medicine Physician nationally: see state-by-state distribution →

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 90% 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

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