NPPES file of Aug 9, 2026

John Fasig, MD

Anatomic Pathology & Clinical Pathology Physician · Brentwood, TN

John Fasig, MD is an anatomic pathology & clinical pathology physician with a practice address in Brentwood, Tennessee, and NPI 1104973080, issued on Jan 4, 2007. Check the license (Tennessee 43243, as entered in NPPES) 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104973080
Name
John Fasig
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
43243 TN
Self-reported in NPPES; status is on the state search
Practice location
5301 Virginia Way, Brentwood, TN 37027
Phone
(615) 221-4474
Enumerated
Jan 4, 2007
Record last updated
Aug 14, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(615) 234-3774
Medicare enrollment
Enrolled (PECOS I20211215000778); accepts Medicare assignment
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.
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Also registered at 5301 Virginia Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mark Alberhasky, M.D.Anatomic Pathology & Clinical Pathology Physician1831287184
  2. Janet Allen, M.D.Anatomic Pathology & Clinical Pathology Physician1568471076
  3. Bijan Amirghassemi, MDAnatomic Pathology & Clinical Pathology Physician1417166828
  4. Sikander Ansari, M.D.Anatomic Pathology & Clinical Pathology Physician1902903651
  5. Charles Aust, MDAnatomic Pathology & Clinical Pathology Physician1639109200
  6. Oscar Battles, M.D.Anatomic Pathology & Clinical Pathology Physician1093812752

Verify John Fasig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 43243
    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
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.

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No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Bills Medicare through one group practice

  1. Associated Pathologists, LLCNashville, TN

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

John Fasig among 475 anatomic pathology & clinical pathology physician records in Tennessee

John Fasig, MD is one of 475 anatomic pathology & clinical pathology physician records with a practice address in Tennessee. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.

  • NPI issued2007 · 53% of these records are older, 35% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2003 · median 2004 among the 259 with a school on file
  • Record last updated2019 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

91 anatomic pathology & clinical pathology physician records list a practice address in Brentwood

They are 91 of the 2,831 NPPES records with a practice address in Brentwood, and 475 anatomic pathology & clinical pathology physician records in Tennessee.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Jody Brahney, MDBrentwood, TN 370271184612244
  2. Harry Daugherty, MDBrentwood, TN 370271063473833
  3. Don Domenico, MDBrentwood, TN 370271730188939
  4. Lori Emerson, MDBrentwood, TN 370271013983832
  5. Eugene Fong, MDBrentwood, TN 370271083680706
  6. Alan Galloway, MDBrentwood, TN 370271497721872
  7. Christopher Hager, MDBrentwood, TN 370271306828462
  8. Taylor Hartley, M.D.Brentwood, TN 370271710939939

Common questions

What is John Fasig, MD's NPI number?

John Fasig, MD's National Provider Identifier (NPI) is 1104973080, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Fasig, MD located?

The NPPES record lists a practice address at 5301 Virginia Way, Brentwood, TN, 37027. Phone: (615) 221-4474. Providers update this record themselves, so call before visiting.

How can I verify John Fasig, MD's license?

NPPES lists Tennessee license number 43243, as entered by the provider. 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.

What is John Fasig, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.