NPPES file of Aug 9, 2026

Keisha Waynette Mason, AGACNP

Acute Care Nurse Practitioner · Nashville, TN

Keisha Waynette Mason, AGACNP is an acute care nurse practitioner with a practice address in Nashville, Tennessee, and NPI 1265396436, issued on Dec 12, 2025. Check the license (Tennessee 40406, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1265396436
Name
Keisha Waynette Mason
Credential
AGACNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
40406 TN
Self-reported in NPPES; status is on the state search
Practice location
300 20TH Ave N Ste G4, Nashville, TN 37203
Phone
(615) 284-5098
Enumerated
Dec 12, 2025
Record last updated
Jan 16, 2026
Fax
(615) 284-5385
Medicare enrollment
Enrolled (PECOS I20260123000272); 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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8 nearest acute care nurse practitioner records → All 1,071 in Tennessee → Look up another NPI →

Also registered at 300 20TH Ave N Ste G4

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

  1. Anthony Ainslie, NPAcute Care Nurse Practitioner1518570639
  2. Blake AndersonFamily Nurse Practitioner1346883006
  3. Hannah Anderson, DOPulmonary Disease Physician1649834425
  4. Thomas Atwater, M.D.Pulmonary Disease Physician1205194115
  5. Ryan Bruns, NPAcute Care Nurse Practitioner1215793146
  6. Michael Burk, MDPulmonary Disease Physician1356785265

Verify Keisha Waynette Mason in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 40406    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 Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Advanced Diagnostic Imaging PCNashville, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Keisha Waynette Mason among 1,071 acute care nurse practitioner records in Tennessee

Keisha Waynette Mason, AGACNP is one of 1,071 acute care nurse practitioner records with a practice address in Tennessee. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 94% of them.

  • NPI issued2025 · 94% of these records are older, 1% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2025 · median 2018 among the 769 with a school on file
  • Record last updated2026 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

573 acute care nurse practitioner records list a practice address in Nashville

They are 573 of the 24,357 NPPES records with a practice address in Nashville, and 1,071 acute care nurse practitioner records in Tennessee.

All 1,071 in Tennessee → Every provider in Nashville → Acute Care Nurse Practitioner nationwide →

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Priscilla Beatty, N.P.Nashville, TN 372031477738052
  2. Gina Bradshaw, ACNPNashville, TN 372031346333028
  3. Cassie Calder, APRNNashville, TN 372031164623138
  4. Amy Cox, N.P.Nashville, TN 372031215966544
  5. Elizabeth Davidson, ACNPNashville, TN 372031811901382
  6. Jackie Harper, NPNashville, TN 372031285841296
  7. Melissa Kent, MSN, RN, ACNP-BCNashville, TN 372031023116035
  8. Jennifer Klecan, NPNashville, TN 372031043471923

Common questions

What is Keisha Waynette Mason, AGACNP's NPI number?

Keisha Waynette Mason, AGACNP's National Provider Identifier (NPI) is 1265396436, issued on Dec 12, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Keisha Waynette Mason, AGACNP located?

The NPPES record lists a practice address at 300 20TH Ave N Ste G4, Nashville, TN, 37203. Phone: (615) 284-5098. Providers update this record themselves, so call before visiting.

How can I verify Keisha Waynette Mason, AGACNP's license?

NPPES lists Tennessee license number 40406, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.