NPPES file of Aug 9, 2026

Sean Wallis, NP

Nurse Practitioner · Boulder, CO

Sean Wallis, NP is a nurse practitioner with a practice address in Boulder, Colorado, and NPI 1356980205, issued on Dec 24, 2019. Check the license (Colorado APN.0995133-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356980205
Name
Sean Wallis
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
APN.0995133-NP CO
Self-reported in NPPES; status is on the state search
Practice location
4747 Arapahoe Ave, Boulder, CO 80303
Phone
(303) 415-7000
Enumerated
Dec 24, 2019
Record last updated
Dec 19, 2023
Medicare enrollment
Enrolled (PECOS I20200127000564); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4747 Arapahoe Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aaron Adler, MDAnesthesiology Physician1932738358
  2. Jeska Albuisson, M.D.Internal Medicine Physician1184899320
  3. Carl Aldin, MDInternal Medicine Physician1932728565
  4. Chase Allen, PHARMDPharmacist1902727399
  5. Alice Ames, RDNRegistered Dietitian1013631084
  6. Lowell Anderson-Reitz, NPAdult Health Nurse Practitioner1255374849

Verify Sean Wallis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license APN.0995133-NP
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

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68% fewer Medicare Part D claims than the average nurse practitioner in 2024

354 Medicare Part D claims for 188 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 47 claims were for opioids.

  1. Sean Wallis354
  2. Specialty average1,109

Most prescribed

  1. Oxycodone Hcl26 claims
  2. Prednisone22 claims
  3. Cefpodoxime Proxetil16 claims
  4. Atorvastatin Calcium15 claims
  5. Eliquis15 claims
  6. Amoxicillin-Clavulanate Potass14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

One hospital affiliation

  1. Boulder Community HealthBoulder, CO · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Sean Wallis among 1,260 nurse practitioner records in Colorado

Sean Wallis, NP is one of 1,260 nurse practitioner records with a practice address in Colorado. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 66% of them.

  • NPI issued2019 · 66% of these records are older, 30% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2019 · median 2018 among the 662 with a school on file
  • Record last updated2023 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Colorado

There are 1,260 nurse practitioner records in Colorado.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sallie Charles, NPBoulder, CO 803031083744841
  2. Kathleen Harding, RN, ADVANCED PRACTICBoulder, CO 803031154525632
  3. Nicola Hempel, ACNP-BCBoulder, CO 803031114286440
  4. Tanja Johnson, NPBoulder, CO 803031467865394
  5. Carissa Martinez, FNPBoulder, CO 803031982126595
  6. Tahirah Asimali, NPBoulder, CO 803041518148246
  7. Cynthia Bargman, RNCBoulder, CO 803021902969306
  8. Meagan Beaulieu, APRNBoulder, CO 803041609538727

Common questions

What is Sean Wallis, NP's NPI number?

Sean Wallis, NP's National Provider Identifier (NPI) is 1356980205, issued on Dec 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Sean Wallis, NP located?

The NPPES record lists a practice address at 4747 Arapahoe Ave, Boulder, CO, 80303. Phone: (303) 415-7000. Providers update this record themselves, so call before visiting.

How can I verify Sean Wallis, NP's license?

NPPES lists Colorado license number APN.0995133-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Sean Wallis, NP prescribe under Medicare Part D?

In 2024, Sean Wallis, NP had 354 Medicare Part D claims for 188 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.