Tiffany J. Marshall, FNP BC
Family Nurse Practitioner · Knoxville, TN
Tiffany J. Marshall, FNP BC is a family nurse practitioner with a practice address in Knoxville, Tennessee, and NPI 1548647555, issued on Apr 28, 2015. Check the license (Tennessee APN19996, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tiffany J. Marshall
- Credential
- FNP BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- APN19996 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1300 Old Weisgarber RD, Knoxville, TN 37909
- Phone
- (865) 584-2146
- Enumerated
- Apr 28, 2015
- Record last updated
- Nov 9, 2022
- Fax
- (865) 374-2103
- Medicaid ID
- Q015675 TN
- Medicare enrollment
- Enrolled (PECOS I20210629001597); 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 1300 Old Weisgarber RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca Clem, MSN, APRN, FNPFamily Nurse Practitioner1285855981
- Timothy GarrabrantFamily Medicine Physician1457856304
- James Hicks, M.D.Family Medicine Physician1023061397
- James Howell, D.O.Family Medicine Physician1831372390
- Caj Johansson, MDFamily Medicine Physician1437611431
- Jens Johnson, M.D.Family Medicine Physician1942731229
Verify Tiffany J. Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license APN19996Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.9 times the Medicare Part D claims of the average family nurse practitioner in 2024
7,753 Medicare Part D claims for 627 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 67 claims were for opioids.
Most prescribed
- Atorvastatin Calcium403 claims
- Amlodipine Besylate375 claims
- Levothyroxine Sodium305 claims
- Metformin Hcl Er291 claims
- Rosuvastatin Calcium247 claims
- Losartan Potassium239 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.
Bills Medicare through one group practice
- Covenant Medical Group IncLoudon, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tiffany J. Marshall among 9,060 family nurse practitioner records in Tennessee
Tiffany J. Marshall, FNP BC 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 2015, is newer than 39% of them.
- NPI issued2015 · 39% of these records are older, 55% 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 updated2022 · 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).
737 family nurse practitioner records list a practice address in Knoxville
They are 737 of the 14,339 NPPES records with a practice address in Knoxville, and 9,060 family nurse practitioner records in Tennessee.
All 9,060 in Tennessee → Every provider in Knoxville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Michael Bowman, FNPKnoxville, TN 379091386967354
- Rebecca Clem, MSN, APRN, FNPKnoxville, TN 379091285855981
- Jessica Dove, FNP-BCKnoxville, TN 379091104091081
- Angela Greear, CFNPKnoxville, TN 379091578880779
- Carol Hawkins, NPKnoxville, TN 379091639186109
- Rhonda Long, APRNKnoxville, TN 379091538286315
- Imelda Margulies, APRNKnoxville, TN 379091750576922
- Tiffany Sipe, FNP-BCKnoxville, TN 379091174848303
Common questions
What is Tiffany J. Marshall, FNP BC's NPI number?
Tiffany J. Marshall, FNP BC's National Provider Identifier (NPI) is 1548647555, issued on Apr 28, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany J. Marshall, FNP BC located?
The NPPES record lists a practice address at 1300 Old Weisgarber RD, Knoxville, TN, 37909. Phone: (865) 584-2146. Providers update this record themselves, so call before visiting.
How can I verify Tiffany J. Marshall, FNP BC's license?
NPPES lists Tennessee license number APN19996, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Tiffany J. Marshall, FNP BC prescribe under Medicare Part D?
In 2024, Tiffany J. Marshall, FNP BC had 7,753 Medicare Part D claims for 627 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.