Tammy M. Griffis, FNP-C
Family Nurse Practitioner · Trezevant, TN
Tammy M. Griffis, FNP-C is a family nurse practitioner with a practice address in Trezevant, Tennessee, and NPI 1407251267, issued on Oct 22, 2014. Check the license (Tennessee 19264, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy M. Griffis
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 19264 TN
Self-reported in NPPES; status is on the state search - Practice location
- 45 Hurt St, Trezevant, TN 38258
- Phone
- (731) 669-3863
- Enumerated
- Oct 22, 2014
- Record last updated
- Jun 19, 2024
- Fax
- (731) 731-6693
- Medicare enrollment
- Enrolled (PECOS I20210216002747); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 9,060 in Tennessee → Look up another NPI →
Also registered at 45 Hurt St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Leggett, FNP-CFamily Nurse Practitioner1528442688
Verify Tammy M. Griffis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 19264Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average family nurse practitioner in 2024
1,374 Medicare Part D claims for 303 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 82 claims were for opioids.
Most prescribed
- Buprenorphine-Naloxone83 claims
- Hydrocodone-Acetaminophen65 claims
- Gabapentin63 claims
- Amlodipine Besylate40 claims
- Levothyroxine Sodium40 claims
- Atorvastatin Calcium34 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: $499.23
28 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
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
- Family Medical Clinic OF TrezevantJackson, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy M. Griffis among 9,060 family nurse practitioner records in Tennessee
Tammy M. Griffis, FNP-C 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 2014, is newer than 33% of them.
- NPI issued2014 · 33% of these records are older, 61% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2014 · median 2017 among the 5,523 with a school on file
- Record last updated2024 · 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).
Family Nurse Practitioner providers in Tennessee
There are 9,060 family nurse practitioner records in Tennessee.
All 9,060 in Tennessee → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Deborah Leggett, FNP-CTrezevant, TN 382581528442688
- Alison Clement, FNP-CSouth Fulton, TN 382571235760273
- Amy Callins, CFNPUnion City, TN 382611598746372
- Kimberly Crowell, FNP-CUnion City, TN 382611164744090
- Brenda Dexter, FNP CUnion City, TN 382611952605107
- Ashley Gullett, FNPUnion City, TN 382611962741926
- Rita Koon, FNP BCUnion City, TN 382611649500083
- Jamie Morris, FNPUnion City, TN 382611407129794
Common questions
What is Tammy M. Griffis, FNP-C's NPI number?
Tammy M. Griffis, FNP-C's National Provider Identifier (NPI) is 1407251267, issued on Oct 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Tammy M. Griffis, FNP-C located?
The NPPES record lists a practice address at 45 Hurt St, Trezevant, TN, 38258. Phone: (731) 669-3863. Providers update this record themselves, so call before visiting.
How can I verify Tammy M. Griffis, FNP-C's license?
NPPES lists Tennessee license number 19264, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy M. Griffis, FNP-C prescribe under Medicare Part D?
In 2024, Tammy M. Griffis, FNP-C had 1,374 Medicare Part D claims for 303 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.
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.