NPPES file of Aug 9, 2026

Gregory Lee Gannon, APN

Family Nurse Practitioner · Nashville, TN

Gregory Lee Gannon, APN is a family nurse practitioner with a practice address in Nashville, Tennessee, and NPI 1922136142, issued on Mar 1, 2007. Check the license (Tennessee APN8456, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922136142
Name
Gregory Lee Gannon
Credential
APN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
APN8456 TN
Self-reported in NPPES; status is on the state search
Practice location
1921 Ransom PL, Nashville, TN 37217
Phone
(615) 279-6700
Enumerated
Mar 1, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050816000125); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 family nurse practitioner records → All 9,060 in Tennessee → Look up another NPI →

Also registered at 1921 Ransom PL

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

  1. Shellie AhrensCase Manager/Care Coordinator1003103466
  2. Anne Alexander, M.S.W.Clinical Social Worker1922303890
  3. Kate AlexanderCase Manager/Care Coordinator1770138976
  4. Alicia Allen, BSCase Manager/Care Coordinator1629562699
  5. Diane Allen, RN, APN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1508139924
  6. Tiffany AlleySocial Worker1144726100

Verify Gregory Lee Gannon 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 APN8456    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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2.4 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,122 Medicare Part D claims for 218 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Gregory Gannon3,122
  2. Specialty average1,305

Most prescribed

  1. Quetiapine Fumarate241 claims
  2. Buspirone Hcl210 claims
  3. Trazodone Hcl196 claims
  4. Sertraline Hcl171 claims
  5. Fluoxetine Hcl137 claims
  6. Venlafaxine Hcl Er131 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.

Industry payments in 2024: $122.83

5 payments; by number, the most common kind was food and beverage; the largest payer was Vanda Pharmaceuticals Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Gannon$122.83
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Volunteer Behavioral Health Care SystemJasper, TN

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

Gregory Lee Gannon among 9,060 family nurse practitioner records in Tennessee

Gregory Lee Gannon, APN is one of 9,060 family nurse practitioner records with a practice address in Tennessee. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 10% of them.

  • NPI issued2007 · 10% of these records are older, 86% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2003 · median 2017 among the 5,523 with a school on file
  • Record last updated2007 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,518 family nurse practitioner records list a practice address in Nashville

They are 1,518 of the 24,357 NPPES records with a practice address in Nashville, and 9,060 family nurse practitioner records in Tennessee.

All 9,060 in Tennessee → Every provider in Nashville → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Judith Bolin, CRNPNashville, TN 372171831177898
  2. Alexis Braddock, NP-CNashville, TN 372171720533110
  3. Adam Cates, MSN, FNP-CNashville, TN 372171265711121
  4. Audrey Hicks, FNPNashville, TN 372171770838955
  5. Ariel Mastro, NPNashville, TN 372171033873963
  6. Stacy McLallen, NURSE PRACTITIONERNashville, TN 372171275547374
  7. Patricia Michael, APRNNashville, TN 372171407943533
  8. Carol Nestler, RN,MSN,FNP-CNashville, TN 372171255577698

Common questions

What is Gregory Lee Gannon, APN's NPI number?

Gregory Lee Gannon, APN's National Provider Identifier (NPI) is 1922136142, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Lee Gannon, APN located?

The NPPES record lists a practice address at 1921 Ransom PL, Nashville, TN, 37217. Phone: (615) 279-6700. Providers update this record themselves, so call before visiting.

How can I verify Gregory Lee Gannon, APN's license?

NPPES lists Tennessee license number APN8456, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Lee Gannon, APN prescribe under Medicare Part D?

In 2024, Gregory Lee Gannon, APN had 3,122 Medicare Part D claims for 218 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

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.