NPPES file of Aug 9, 2026

Joanattan Calderon, DO

Internal Medicine Physician · Round Rock, TX

Joanattan Calderon, DO is an internal medicine physician with a practice address in Round Rock, Texas, and NPI 1881198067, issued on Mar 21, 2018. Check the license (Texas T0184, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881198067
Name
Joanattan Calderon
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
T0184 TX
Self-reported in NPPES; status is on the state search
Practice location
300 University Blvd, Round Rock, TX 78665
Phone
(512) 509-0100
Enumerated
Mar 21, 2018
Record last updated
Mar 12, 2024
Medicare enrollment
Enrolled (PECOS I20210623004020); 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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8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →

Also registered at 300 University Blvd

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

  1. Brian Albert, MDEmergency Medicine Physician1780241638
  2. Torey AllingEmergency Medicine Physician1871121814
  3. Victoriano AquinoPhysician Assistant1750919742
  4. Rachel Arffa, MDOtolaryngology Physician1316268410
  5. Danielle Arnold, MDPediatrics Physician1114293834
  6. Joseph Ayoub, M.D.Diagnostic Radiology Physician1588844609

Verify Joanattan Calderon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T0184    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 Texas 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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Bills Medicare through one group practice

  1. Scott And White ClinicRound Rock, TX

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

Joanattan Calderon among 9,175 internal medicine physician records in Texas

Joanattan Calderon, DO is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.

  • NPI issued2018 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2012 · median 2004 among the 6,088 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

63 internal medicine physician records list a practice address in Round Rock

They are 63 of the 3,815 NPPES records with a practice address in Round Rock, and 9,175 internal medicine physician records in Texas.

All 9,175 in Texas → Every provider in Round Rock → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ashraf Anani, M.D.Round Rock, TX 786651629041710
  2. Brian Anderson, D.O.Round Rock, TX 786651598886954
  3. Kendall Britt, M.D.Round Rock, TX 786651932138567
  4. Satya Sree Chalasani, M.D.Round Rock, TX 786651346408325
  5. Nilanjana Dasgupta, M.D.Round Rock, TX 786651598703084
  6. Trina Dorrah, M.D.Round Rock, TX 786651326104183
  7. Robyn Fader, MDRound Rock, TX 786651609846781
  8. Christopher Farmer, M.D.Round Rock, TX 786651619136462

Common questions

What is Joanattan Calderon, DO's NPI number?

Joanattan Calderon, DO's National Provider Identifier (NPI) is 1881198067, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Joanattan Calderon, DO located?

The NPPES record lists a practice address at 300 University Blvd, Round Rock, TX, 78665. Phone: (512) 509-0100. Providers update this record themselves, so call before visiting.

How can I verify Joanattan Calderon, DO's license?

NPPES lists Texas license number T0184, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.