Mary Ann Marrs, CNP
Clinical Nurse Specialist · Rapid City, SD
Mary Ann Marrs, CNP is a clinical nurse specialist with a practice address in Rapid City, South Dakota, and NPI 1144201708, issued on Nov 10, 2005. Check the license (South Dakota SD-CNP CP000412, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Ann Marrs
- Credential
- CNP
- Primary taxonomy
- Clinical Nurse Specialist 364S00000X
- License numbers
- SD-CNP CP000412 SD
R029403 SD
Self-reported in NPPES; status is on the state search - Practice location
- 7220 S Highway 16, Rapid City, SD 57702
- Phone
- (605) 341-1414
- Enumerated
- Nov 10, 2005
- Record last updated
- Dec 6, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (605) 341-7062
- Medicaid ID
- 6827452 SD
- Entity
- Type 1 · individual
7 nearest clinical nurse specialist records → All 8 in South Dakota → Look up another NPI →
Also registered at 7220 S Highway 16
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Aanderud, PA-CPhysician Assistant1265412878
- Corey Anderson, PA-CPhysician Assistant1194093161
- Christopher Barrozo, PA-CPhysician Assistant1245481332
- Carey Berndt, P.T.Physical Therapist1528023371
- Laura Bonsness, PTPhysical Therapist1457321010
- Laura Broten, RPTPhysical Therapist1033189683
Verify Mary Ann Marrs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license SD-CNP CP000412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average clinical nurse specialist in 2024
33 Medicare Part D claims for 18 beneficiaries, against an average of 957 among the 361 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
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.
Clinical Nurse Specialist providers in South Dakota
There are 8 clinical nurse specialist records in South Dakota.
All 8 in South Dakota → Every provider in Rapid City → Clinical Nurse Specialist nationwide →
The 7 clinical nurse specialist records with the nearest ZIP codes
- Julie HericksRapid City, SD 577021467123190
- Susan Hohm, R.N., C.N.SAberdeen, SD 574011043487499
- Andrea Wessel, CNSSioux Falls, SD 571081366837817
- Alexis GreenSioux Falls, SD 571051023807831
- Rhonda Jensen, CNSSioux Falls, SD 571051588873145
- Linda Pudenz, CNS, RNSioux Falls, SD 571051881795946
- Dawn Seeley, ACNS-BCSioux Falls, SD 571051699255489
Common questions
What is Mary Ann Marrs, CNP's NPI number?
Mary Ann Marrs, CNP's National Provider Identifier (NPI) is 1144201708, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Marrs, CNP located?
The NPPES record lists a practice address at 7220 S Highway 16, Rapid City, SD, 57702. Phone: (605) 341-1414. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Marrs, CNP's license?
NPPES lists South Dakota license number SD-CNP CP000412, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Ann Marrs, CNP prescribe under Medicare Part D?
In 2024, Mary Ann Marrs, CNP had 33 Medicare Part D claims for 18 beneficiaries; the average among clinical nurse specialist prescribers was 957. 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.