Tiffany Marshall, FNP BC
NPI 1548647555 · Family Nurse Practitioner · Knoxville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany Marshall, FNP BC is a Family Nurse Practitioner provider in Knoxville, TN (NPI 1548647555).
Provider details
- NPI number
- 1548647555
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP BC
- Sex
- Female
- Sole proprietor
- No
- License
- APN19996 (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 tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,288 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 301 | $100 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 273 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 257 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 214 | $13 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 186 | $13 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 403 | 171 |
| Amlodipine Besylate | 375 | 148 |
| Levothyroxine Sodium | 305 | 100 |
| Metformin Hclbrand: Metformin Hcl Er | 291 | 118 |
| Rosuvastatin Calcium | 247 | 107 |
| Losartan Potassium | 239 | 100 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-28
- Last updated
- 2022-11-09
- Certified
- 2022-11-09
Frequently asked questions
- What is Tiffany Marshall's NPI number?
- Tiffany Marshall's National Provider Identifier (NPI) is 1548647555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Marshall's specialty?
- Tiffany Marshall is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tiffany Marshall located?
- Tiffany Marshall's practice location on file with NPPES is 1300 Old Weisgarber Rd, Knoxville, TN 37909-1291.
- What is Tiffany Marshall's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Marshall is (865) 584-2146.
- Does Tiffany Marshall accept Medicare?
- Tiffany Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany Marshall's NPI active?
- Yes — Tiffany Marshall's NPI (1548647555) is active in the NPPES registry as of the last update on 2022-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.