NPPES file of Aug 9, 2026

Mariana Isabel Chavez, M.D.

Surgical Oncology Physician · Nashville, TN

Mariana Isabel Chavez, M.D. is a surgical oncology physician with a practice address in Nashville, Tennessee, and NPI 1265787550, issued on Jul 23, 2012. Check the license (Tennessee MD58628, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265787550
Name
Mariana Isabel Chavez
Credential
M.D.
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License numbers
MD58628 TN
58628 TN
Self-reported in NPPES; status is on the state search
Practice location
410 42ND Ave N Ste 400, Nashville, TN 37209
Phone
(615) 329-7887
Enumerated
Jul 23, 2012
Record last updated
Feb 10, 2026
Fax
(615) 340-4537
Medicaid ID
Q048620 TN
Medicare enrollment
Enrolled (PECOS I20190619002050); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 410 42ND Ave N Ste 400

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

  1. Zachary Callahan, M.D.Surgery Physician1679969067
  2. Mark Cooper, M.D.Surgery Physician1497752489
  3. Gretchen Edwards, M.D.Surgery Physician1043607815
  4. Trudie Goers, M.D.Surgery Physician1073775706
  5. James Griscom, MDSurgery Physician1760989131
  6. Bassam Helou, M.D.Surgery Physician1407864069

Verify Mariana Isabel Chavez 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 MD58628
    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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3.0 times the Medicare Part D claims of the average surgical oncology physician in 2024

265 Medicare Part D claims for 108 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 77 claims were for opioids.

  1. Mariana Chavez265
  2. Specialty average87

Most prescribed

  1. Famotidine78 claims
  2. Tramadol Hcl53 claims
  3. Creon27 claims
  4. Amoxicillin-Clavulanate Potass20 claims
  5. Oxycodone-Acetaminophen18 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): 84.2 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 score71.5
  2. Costout of 100 · 30%67.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $1,428.94

13 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mariana Chavez$1,428.94
  2. Specialty average$4,224.74

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

  1. Tennessee Oncology PLLCNashville, TN

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

Mariana Isabel Chavez among 62 surgical oncology physician records in Tennessee

Mariana Isabel Chavez, M.D. is one of 62 surgical oncology physician records with a practice address in Tennessee. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 71% of them.

  • NPI issued2012 · 71% of these records are older, 21% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2009 · median 2009 among the 46 with a school on file
  • Record last updated2026 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Oncology Physician providers in Tennessee

There are 62 surgical oncology physician records in Tennessee.

The 8 surgical oncology physician records with the nearest ZIP codes

  1. Adrian Pearson, M.D.Nashville, TN 372121568549475
  2. Maria Mulero Morales, MDNashville, TN 372041336692920
  3. Laura Dunbar, MDNashville, TN 372031346320330
  4. Ben Furman, MDNashville, TN 372031972617116
  5. Pat Whitworth, MDNashville, TN 372031144205519
  6. Naji Abumrad, MDNashville, TN 372321548369978
  7. Christina Bailey, MDNashville, TN 372321447307301
  8. Naira Baregamian, MD, MMSNashville, TN 372321144411323

Common questions

What is Mariana Isabel Chavez, M.D.'s NPI number?

Mariana Isabel Chavez, M.D.'s National Provider Identifier (NPI) is 1265787550, issued on Jul 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mariana Isabel Chavez, M.D. located?

The NPPES record lists a practice address at 410 42ND Ave N Ste 400, Nashville, TN, 37209. Phone: (615) 329-7887. Providers update this record themselves, so call before visiting.

How can I verify Mariana Isabel Chavez, M.D.'s license?

NPPES lists Tennessee license number MD58628, 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.

How much does Mariana Isabel Chavez, M.D. prescribe under Medicare Part D?

In 2024, Mariana Isabel Chavez, M.D. had 265 Medicare Part D claims for 108 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.

What is Mariana Isabel Chavez, M.D.'s MIPS final score?

The 2023 MIPS final score is 84.2 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.