NPPES file of Aug 9, 2026

Brian Zach Fowler, M.D.

Radiation Oncology Physician · Morristown, TN

Brian Zach Fowler, M.D. is a radiation oncology physician with a practice address in Morristown, Tennessee, and NPI 1083673636, issued on Mar 22, 2006. Check the license on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083673636
Name
Brian Zach Fowler
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
53446 GA
Self-reported in NPPES; status is on the state search
Practice location
908 W. 4TH North Street, Morristown, TN 37814
Phone
(423) 492-6200
Enumerated
Mar 22, 2006
Record last updated
Sep 5, 2023
Fax
(423) 492-6201
Medicaid ID
1521996 TN
Medicare enrollment
Enrolled (PECOS I20110118001124); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Brian Zach Fowler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical ExaminersCheck 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
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

25% fewer Medicare Part D claims than the average radiation oncology physician in 2024

101 Medicare Part D claims for 57 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Brian Fowler101
  2. Specialty average134

Most prescribed

  1. Dexamethasone20 claims
  2. Nystatin18 claims
  3. Tamsulosin Hcl14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. East Tennessee Radiation Oncology, P.C.Morristown, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian Zach Fowler among 132 radiation oncology physician records in Tennessee

Brian Zach Fowler, M.D. is one of 132 radiation oncology physician records with a practice address in Tennessee. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 53% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2000 · median 2005 among the 98 with a school on file
  • Record last updated2023 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Tennessee

There are 132 radiation oncology physician records in Tennessee.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. John Anderson, MDMorristown, TN 378141053384362
  2. Maikel Botros, MDMaryville, TN 378041164712394
  3. Albert Petty, M.D.Maryville, TN 378041881742641
  4. Elliot Navo, M.D.Oak Ridge, TN 378301023334000
  5. Erica Northern, MSPowell, TN 378491962148379
  6. Natasa Townsend, M.D.Sevierville, TN 378621427285329
  7. Ramesh Rao, MDHarrogate, TN 377521831164862
  8. John Boys, M.D.Greeneville, TN 377451386645240

Common questions

What is Brian Zach Fowler, M.D.'s NPI number?

Brian Zach Fowler, M.D.'s National Provider Identifier (NPI) is 1083673636, issued on Mar 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Zach Fowler, M.D. located?

The NPPES record lists a practice address at 908 W. 4TH North Street, Morristown, TN, 37814. Phone: (423) 492-6200. Providers update this record themselves, so call before visiting.

How can I verify Brian Zach Fowler, M.D.'s license?

Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian Zach Fowler, M.D. prescribe under Medicare Part D?

In 2024, Brian Zach Fowler, M.D. had 101 Medicare Part D claims for 57 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Brian Zach Fowler, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.