Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC
Gerontology Nurse Practitioner · Nashville, TN
Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC is a gerontology nurse practitioner with a practice address in Nashville, Tennessee, and NPI 1508468984, issued on Nov 11, 2020. Check the license (Tennessee 28350, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie Mary Waltz Marrow
- Credential
- MSN, RN, AGACNP-BC
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- 28350 TN
Self-reported in NPPES; status is on the state search - Practice location
- 3601 The Vanderbilt Clinic, Nashville, TN 37232
- Phone
- (615) 322-3000
- Enumerated
- Nov 11, 2020
- Record last updated
- Apr 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20210115001370); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 379 in Tennessee → Look up another NPI →
Also registered at 3601 The Vanderbilt Clinic
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yara Aboshady, MDObstetrics & Gynecology Physician1558998971
Verify Stephanie Mary Waltz Marrow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 28350Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
55 Medicare Part D claims for 42 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D.
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.
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospitals5 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.
Stephanie Mary Waltz Marrow among 379 gerontology nurse practitioner records in Tennessee
Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC is one of 379 gerontology nurse practitioner records with a practice address in Tennessee. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 49% of them.
- NPI issued2020 · 49% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2020 · median 2021 among the 288 with a school on file
- Record last updated2025 · 15% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Tennessee
There are 379 gerontology nurse practitioner records in Tennessee.
All 379 in Tennessee → Every provider in Nashville → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Carole Bartoo, M.S.N., R.N., ANP-BCNashville, TN 372321316388119
- Michelle Brown, FNPNashville, TN 372321114060258
- Anne Brown, APRNNashville, TN 372321790813152
- Conor Colahan, MSN, APRN, AGACNP-BCNashville, TN 372321144650128
- Sarah Gast, APRNNashville, TN 372321457635310
- Alice LoweNashville, TN 372321841220563
- William McCall, AGACNP-BC,FNP-BCNashville, TN 372321508296351
- Danielle Minton, ANP-BCNashville, TN 372321134463896
Common questions
What is Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC's NPI number?
Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC's National Provider Identifier (NPI) is 1508468984, issued on Nov 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC located?
The NPPES record lists a practice address at 3601 The Vanderbilt Clinic, Nashville, TN, 37232. Phone: (615) 322-3000. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC's license?
NPPES lists Tennessee license number 28350, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC prescribe under Medicare Part D?
In 2024, Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC had 55 Medicare Part D claims for 42 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.
What is Stephanie Mary Waltz Marrow, MSN, RN, AGACNP-BC's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.