Tammy Griffis, FNP-C
NPI 1407251267 · Family Nurse Practitioner · Trezevant, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Griffis, FNP-C is a Family Nurse Practitioner provider in Trezevant, TN (NPI 1407251267).
Provider details
- NPI number
- 1407251267
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 19264 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
364 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 71 | $61 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 63 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $99 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 48 | $11 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 32 | $9 |
| Testing for Presence of Drug, Read By Direct Observation80305 | 29 | $12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 83 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 65 | 28 |
| Gabapentin | 63 | 33 |
| Amlodipine Besylate | 40 | 27 |
| Levothyroxine Sodium | 40 | 20 |
| Atorvastatin Calcium | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$499 across 28 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 1123 N Main StDyer, TN 38330-1019Phone: (731) 692-2853Fax: (731) 692-2367
- 2062 Pleasant Plains Ext Rd Ste EJackson, TN 38305-6008Phone: (731) 664-2273Fax: (731) 300-7405
- 1022 Greystone SqJackson, TN 38305-3580Phone: (731) 300-2001Fax: (731) 240-8095
Registry dates
- Enumerated
- 2014-10-22
- Last updated
- 2024-06-19
- Certified
- 2024-06-19
Frequently asked questions
- What is Tammy Griffis's NPI number?
- Tammy Griffis's National Provider Identifier (NPI) is 1407251267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Griffis's specialty?
- Tammy Griffis is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Griffis located?
- Tammy Griffis's practice location on file with NPPES is 45 Hurt St, Trezevant, TN 38258-2505.
- What is Tammy Griffis's phone number?
- The practice phone number listed in the NPPES registry for Tammy Griffis is (731) 669-3863.
- Does Tammy Griffis accept Medicare?
- Tammy Griffis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Griffis's NPI active?
- Yes — Tammy Griffis's NPI (1407251267) is active in the NPPES registry as of the last update on 2024-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.