NPPES file of Aug 9, 2026

Mark Daechul Byun, FNP-BC

Family Nurse Practitioner · Brentwood, TN

Mark Daechul Byun, FNP-BC is a family nurse practitioner with a practice address in Brentwood, Tennessee, and NPI 1437659414, issued on Feb 16, 2018. Check the license (Tennessee 22697, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437659414
Name
Mark Daechul Byun
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
22697 TN
Self-reported in NPPES; status is on the state search
Practice location
1810 Sonoma Trce, Brentwood, TN 37027
Phone
(615) 878-6286
Enumerated
Feb 16, 2018
Record last updated
Jul 9, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 9,060 in Tennessee → Look up another NPI →

Verify Mark Daechul Byun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 22697    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Tennessee license search

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95% fewer Medicare Part D claims than the average family nurse practitioner in 2024

68 Medicare Part D claims for 17 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Mark Byun68
  2. Specialty average1,305

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.

Mark Daechul Byun among 9,060 family nurse practitioner records in Tennessee

Mark Daechul Byun, 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 2018, is newer than 56% of them.

  • NPI issued2018 · 56% of these records are older, 39% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2024 · 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).

149 family nurse practitioner records list a practice address in Brentwood

They are 149 of the 2,831 NPPES records with a practice address in Brentwood, and 9,060 family nurse practitioner records in Tennessee.

All 9,060 in Tennessee → Every provider in Brentwood → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Allison Bodzy, F.N.P.Brentwood, TN 370271689604720
  2. Leila Casteel, DNP, APRN, FNP-CBrentwood, TN 370271083714778
  3. Suzanne Cole, MSN-FNPBrentwood, TN 370271598841330
  4. Marcia Deleonard, MSNBrentwood, TN 370271265426779
  5. Jamie Dickerson, ARNPBrentwood, TN 370271639131675
  6. Pamela Egan Merkley, APRN-BC, FNP-CBrentwood, TN 370271548216005
  7. Kenya Hall, APRN, FNPBrentwood, TN 370271558301523
  8. Traci Janjic, NPBrentwood, TN 370271134186190

Common questions

What is Mark Daechul Byun, FNP-BC's NPI number?

Mark Daechul Byun, FNP-BC's National Provider Identifier (NPI) is 1437659414, issued on Feb 16, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Mark Daechul Byun, FNP-BC located?

The NPPES record lists a practice address at 1810 Sonoma Trce, Brentwood, TN, 37027. Phone: (615) 878-6286. Providers update this record themselves, so call before visiting.

How can I verify Mark Daechul Byun, FNP-BC's license?

NPPES lists Tennessee license number 22697, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Daechul Byun, FNP-BC prescribe under Medicare Part D?

In 2024, Mark Daechul Byun, FNP-BC had 68 Medicare Part D claims for 17 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.