NPPES file of Aug 9, 2026

Isabella Guajardo Sant, MD

Surgery Physician · Mountain Home, AR

Isabella Guajardo Sant, MD is a surgery physician with a practice address in Mountain Home, Arkansas, and NPI 1811550742, issued on Apr 16, 2019. Check the license (Arkansas E-18123, as entered in NPPES) on the Arkansas State Medical Board; 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
1811550742
Name
Isabella Guajardo Sant
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
E-18123 AR
A180845 CA
Self-reported in NPPES; status is on the state search
Practice location
901 Burnett Dr, Mountain Home, AR 72653
Phone
(912) 087-0421
Enumerated
Apr 16, 2019
Record last updated
Aug 27, 2024
Medicare enrollment
Enrolled (PECOS I20240801002096); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2019
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 901 Burnett Dr

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

  1. Nathaniel Blanton, APRNNurse Practitioner1891308839
  2. John Carlisle, D.O.Surgery Physician1164962726
  3. Jacob Dickinson, MDSurgery Physician1396866364
  4. Jennifer Foster, M.D.Surgery Physician1356579510
  5. Isaac Gaston, APRNFamily Nurse Practitioner1457850372
  6. David Harrison, M.D.Surgery Physician1427157478

Verify Isabella Guajardo Sant in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E-18123
    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 Arkansas 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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30% fewer Medicare Part D claims than the average surgery physician in 2024

103 Medicare Part D claims for 54 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Isabella Guajardo Sant103
  2. Specialty average147

Most prescribed

  1. Oxycodone-Acetaminophen16 claims
  2. Oxycodone 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.

Industry payments in 2024: $14.11

1 payment: food and beverage; the largest payer was Integra LifeSciences Corporation. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Isabella Guajardo Sant$14.11
  2. Specialty average$3,513.80

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. Ozark Surgical GroupSalem, AR

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

Isabella Guajardo Sant among 284 surgery physician records in Arkansas

Isabella Guajardo Sant, MD is one of 284 surgery physician records with a practice address in Arkansas. 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 2019, is newer than 93% of them.

  • NPI issued2019 · 93% of these records are older, 5% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2019 · median 2004 among the 178 with a school on file
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 surgery physician records list a practice address in Mountain Home

They are 11 of the 907 NPPES records with a practice address in Mountain Home, and 284 surgery physician records in Arkansas.

The 8 surgery physician records with the nearest ZIP codes

  1. John Carlisle, D.O.Mountain Home, AR 726531164962726
  2. Jacob Dickinson, MDMountain Home, AR 726531396866364
  3. Jennifer Foster, M.D.Mountain Home, AR 726531356579510
  4. David Harrison, M.D.Mountain Home, AR 726531427157478
  5. Robert McCurdy, M.D.Mountain Home, AR 726531598109514
  6. Anastasios Mitsakos, MDMountain Home, AR 726531093236564
  7. Kent Nachtigal, M.D.Mountain Home, AR 726531285640003
  8. John Spore, MDMountain Home, AR 726531275540502

Common questions

What is Isabella Guajardo Sant, MD's NPI number?

Isabella Guajardo Sant, MD's National Provider Identifier (NPI) is 1811550742, issued on Apr 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Isabella Guajardo Sant, MD located?

The NPPES record lists a practice address at 901 Burnett Dr, Mountain Home, AR, 72653. Phone: (912) 087-0421. Providers update this record themselves, so call before visiting.

How can I verify Isabella Guajardo Sant, MD's license?

NPPES lists Arkansas license number E-18123, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Isabella Guajardo Sant, MD prescribe under Medicare Part D?

In 2024, Isabella Guajardo Sant, MD had 103 Medicare Part D claims for 54 beneficiaries; the average among surgery physician prescribers was 147. 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.

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.