Chelsea K. Mercer, FNP
Family Nurse Practitioner · Knoxville, TN
Chelsea K. Mercer, FNP is a family nurse practitioner with a practice address in Knoxville, Tennessee, and NPI 1093171001, issued on Jan 6, 2016. Check the license (Tennessee 20990, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chelsea K. Mercer
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 20990 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1225 E Weisgarber RD, Knoxville, TN 37909
- Phone
- (865) 584-4747
- Enumerated
- Jan 6, 2016
- Record last updated
- May 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (865) 584-1363
- Medicare enrollment
- Enrolled (PECOS I20160419000872); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 9,060 in Tennessee → Look up another NPI →
Also registered at 1225 E Weisgarber RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Angela Frost, RD, LDNRegistered Dietitian1790042703
Verify Chelsea K. Mercer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 20990Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average family nurse practitioner in 2024
431 Medicare Part D claims for 183 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Prednisone44 claims
- Alprazolam29 claims
- Gabapentin29 claims
- Zolpidem Tartrate21 claims
- Montelukast Sodium18 claims
- Amoxicillin-Clavulanate Potass15 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: $17.94
1 payment: 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
- Holston Medical Group PCGreeneville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chelsea K. Mercer among 9,060 family nurse practitioner records in Tennessee
Chelsea K. Mercer, FNP 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 2016, is newer than 45% of them.
- NPI issued2016 · 45% of these records are older, 50% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2015 · median 2017 among the 5,523 with a school on file
- Record last updated2018 · 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 Chelsea K. Mercer, FNP's NPI number?
Chelsea K. Mercer, FNP's National Provider Identifier (NPI) is 1093171001, issued on Jan 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea K. Mercer, FNP located?
The NPPES record lists a practice address at 1225 E Weisgarber RD, Knoxville, TN, 37909. Phone: (865) 584-4747. Providers update this record themselves, so call before visiting.
How can I verify Chelsea K. Mercer, FNP's license?
NPPES lists Tennessee license number 20990, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Chelsea K. Mercer, FNP prescribe under Medicare Part D?
In 2024, Chelsea K. Mercer, FNP had 431 Medicare Part D claims for 183 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.