NPPES file of Aug 9, 2026

Gina A. Johnston, MD

Anatomic Pathology & Clinical Pathology Physician · Germantown, TN

Gina A. Johnston, MD is an anatomic pathology & clinical pathology physician with a practice address in Germantown, Tennessee, and NPI 1790759850, issued on Feb 15, 2006. Check the license (Tennessee 28387, 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
1790759850
Name
Gina A. Johnston
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
28387 TN
Self-reported in NPPES; status is on the state search
Practice location
7550 Wolf River Blvd Ste 200, Germantown, TN 38138
Phone
(901) 542-6801
Enumerated
Feb 15, 2006
Record last updated
Feb 22, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicaid IDs
3880737 TN
149765001 AR
Medicare enrollment
Enrolled (PECOS I20110524000432); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1991
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 7550 Wolf River Blvd Ste 200

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

  1. Zachary Corr, M.D.Urology Physician1700101441
  2. Fadi IbrahimAnatomic Pathology Physician1033159629
  3. Glenn Murray, D.O.Anatomic Pathology & Clinical Pathology Physician1669890935
  4. Susan Warner, MDAnatomic Pathology & Clinical Pathology Physician1437459740

Verify Gina A. Johnston 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 28387
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 54.2 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 score0.0
  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. Pathology Specialists OF Memphis PCMemphis, TN

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

Gina A. Johnston among 475 anatomic pathology & clinical pathology physician records in Tennessee

Gina A. Johnston, 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 47% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1991 · 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).

Anatomic Pathology & Clinical Pathology Physician providers in Tennessee

There are 475 anatomic pathology & clinical pathology physician records in Tennessee.

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

  1. Heather Baldwin, MDGermantown, TN 381381235124363
  2. Vibha Jain, MDGermantown, TN 381381669676060
  3. Glenn Murray, D.O.Germantown, TN 381381669890935
  4. Kurt Patton, M.D.Germantown, TN 381381518001932
  5. Susan Warner, MDGermantown, TN 381381437459740
  6. Arthur Wilson, M.D.Germantown, TN 381381427328442
  7. Holly Pierce, M.D.Memphis, TN 381341306863212
  8. Maha Al-Khawaja, M.B.B.S., MDMemphis, TN 381251891955845

Common questions

What is Gina A. Johnston, MD's NPI number?

Gina A. Johnston, MD's National Provider Identifier (NPI) is 1790759850, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gina A. Johnston, MD located?

The NPPES record lists a practice address at 7550 Wolf River Blvd Ste 200, Germantown, TN, 38138. Phone: (901) 542-6801. Providers update this record themselves, so call before visiting.

How can I verify Gina A. Johnston, MD's license?

NPPES lists Tennessee license number 28387, 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 Gina A. Johnston, MD's MIPS final score?

The 2023 MIPS final score is 54.2 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.