NPPES file of Aug 9, 2026

Calixto Antonio Romero, MD

Critical Care Medicine (Internal Medicine) Physician · Little Rock, AR

Calixto Antonio Romero, MD is a critical care medicine (internal medicine) physician with a practice address in Little Rock, Arkansas, and NPI 1326507187, issued on Mar 19, 2019. Check the license (Arkansas E-17772, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326507187
Name
Calixto Antonio Romero
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
E-17772 AR
23265 NH
Self-reported in NPPES; status is on the state search
Practice location
4301 W Markham St # 584, Little Rock, AR 72205
Phone
(501) 526-2085
Enumerated
Mar 19, 2019
Record last updated
Aug 6, 2024
Fax
(501) 526-2059
Medicare enrollment
Enrolled (PECOS I20221221002489); 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 4301 W Markham St # 584

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

  1. Ann-Marie Alexander, PA-CPhysician Assistant1780274043
  2. Jason Arthur, MDEmergency Medicine Physician1225423387
  3. Gitansh Bhargava, DOEmergency Medicine Physician1033748553
  4. Ashley BosheEmergency Medicine Physician1740921774
  5. Carol Bowerman, PA-CPhysician Assistant1346029485
  6. Cara Cadzow, APRNAcute Care Nurse Practitioner1669058012

Verify Calixto Antonio Romero 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-17772
    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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88% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

85 Medicare Part D claims for 60 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Calixto Romero85
  2. Specialty average696

Most prescribed

  1. Cyclobenzaprine Hcl12 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): 73.1 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 score60.0
  2. Costout of 100 · 30%47.0
  3. Promoting interoperabilityout of 100 · 25%91.0
  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).

Bills Medicare through 4 group practices

  1. Arkansas Health GroupLittle Rock, AR
  2. Baptist Medcare IncLittle Rock, AR
  3. Bluewater Emergency Partners OF Brunswick, LLCClaremont, NH
  4. University OF Arkansas For Medical SciencesLittle Rock, AR

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

Calixto Antonio Romero among 29 critical care medicine (internal medicine) physician records in Arkansas

Calixto Antonio Romero, MD is one of 29 critical care medicine (internal medicine) physician records with a practice address in Arkansas. 93% 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 79% of them.

  • NPI issued2019 · 79% of these records are older, 14% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2019 · median 2008 among the 24 with a school on file
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Arkansas

There are 29 critical care medicine (internal medicine) physician records in Arkansas.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Shahrukh ArifLittle Rock, AR 722051548613961
  2. William Atchley, MD, PHDLittle Rock, AR 722051649513847
  3. Mohamed Attia, M.D.Little Rock, AR 722051144617754
  4. J Beaton, M.D.Little Rock, AR 722051740218676
  5. Howard Corwin, M.D.Little Rock, AR 722051609899228
  6. Lalasa Doppalapudi, M.D.Little Rock, AR 722051982270658
  7. Cidney Hulett, MD, MPHLittle Rock, AR 722051598960270
  8. Austin Knott, MDLittle Rock, AR 722051396164125

Common questions

What is Calixto Antonio Romero, MD's NPI number?

Calixto Antonio Romero, MD's National Provider Identifier (NPI) is 1326507187, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Calixto Antonio Romero, MD located?

The NPPES record lists a practice address at 4301 W Markham St # 584, Little Rock, AR, 72205. Phone: (501) 526-2085. Providers update this record themselves, so call before visiting.

How can I verify Calixto Antonio Romero, MD's license?

NPPES lists Arkansas license number E-17772, 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 Calixto Antonio Romero, MD prescribe under Medicare Part D?

In 2024, Calixto Antonio Romero, MD had 85 Medicare Part D claims for 60 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.

What is Calixto Antonio Romero, MD's MIPS final score?

The 2023 MIPS final score is 73.1 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.