Tammy Quibell Greenfield, APRN, FNP-C
NPI 1184297533 · Family Nurse Practitioner · Crossville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Quibell Greenfield, APRN, FNP-C is a Family Nurse Practitioner provider in Crossville, TN (NPI 1184297533).
Provider details
- NPI number
- 1184297533
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 262300 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 21 | 14 |
| Lisinopril | 18 | 13 |
| Amlodipine Besylate | 13 | 11 |
| Hydrochlorothiazide | 13 | — |
| Metformin Hcl | 12 | — |
| Gabapentin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-22
- Last updated
- 2025-07-21
- Certified
- 2025-07-21
Frequently asked questions
- What is Tammy Quibell Greenfield's NPI number?
- Tammy Quibell Greenfield's National Provider Identifier (NPI) is 1184297533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Quibell Greenfield's specialty?
- Tammy Quibell Greenfield is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Quibell Greenfield located?
- Tammy Quibell Greenfield's practice location on file with NPPES is 54 Red Oak Dr, Crossville, TN 38555-1002.
- What is Tammy Quibell Greenfield's phone number?
- The practice phone number listed in the NPPES registry for Tammy Quibell Greenfield is (602) 319-2033.
- Does Tammy Quibell Greenfield accept Medicare?
- Tammy Quibell Greenfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Quibell Greenfield's NPI active?
- Yes — Tammy Quibell Greenfield's NPI (1184297533) is active in the NPPES registry as of the last update on 2025-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.