NPPES file of Aug 9, 2026

Oriana Ijun Chen, M.D.

Emergency Medicine Physician · Sugar Land, TX

Oriana Ijun Chen, M.D. is an emergency medicine physician with a practice address in Sugar Land, Texas, and NPI 1528358124, issued on Apr 15, 2011. Check the license (Texas Q1371, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528358124
Name
Oriana Ijun Chen
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
Q1371 TX
35.123694 OH
Self-reported in NPPES; status is on the state search
Practice location
16000 Southwest Fwy, Sugar Land, TX 77479
Phone
(281) 277-0911
Enumerated
Apr 15, 2011
Record last updated
Mar 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →

Also registered at 16000 Southwest Fwy

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

  1. Christopher Kwon, MDEmergency Medicine Physician1467469015

Verify Oriana Ijun Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q1371    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

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2.2 times the Medicare Part D claims of the average emergency medicine physician in 2024

492 Medicare Part D claims for 179 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Oriana Chen492
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt78 claims
  2. Ibuprofen49 claims
  3. Acetaminophen-Codeine38 claims
  4. Cefuroxime27 claims
  5. Amoxicillin-Clavulanate Potass26 claims
  6. Prednisone24 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.

Oriana Ijun Chen among 4,885 emergency medicine physician records in Texas

Oriana Ijun Chen, M.D. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 52% of them.

  • NPI issued2011 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2019 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Texas

There are 4,885 emergency medicine physician records in Texas.

All 4,885 in Texas → Every provider in Sugar Land → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Huy Chiu, D.O.Sugar Land, TX 774791225237167
  2. Hasan Gokal, MDSugar Land, TX 774791710090329
  3. Rajeeb Guharoy, MDSugar Land, TX 774791235128422
  4. Alan Hand, M.D.Sugar Land, TX 774791851391114
  5. Christopher Kwon, MDSugar Land, TX 774791467469015
  6. Roger Morse, MDSugar Land, TX 774791831418292
  7. Shannon Orsak, M.D.Sugar Land, TX 774791144241928
  8. Joel Pearsall, MDSugar Land, TX 774791467432617

Common questions

What is Oriana Ijun Chen, M.D.'s NPI number?

Oriana Ijun Chen, M.D.'s National Provider Identifier (NPI) is 1528358124, issued on Apr 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Oriana Ijun Chen, M.D. located?

The NPPES record lists a practice address at 16000 Southwest Fwy, Sugar Land, TX, 77479. Phone: (281) 277-0911. Providers update this record themselves, so call before visiting.

How can I verify Oriana Ijun Chen, M.D.'s license?

NPPES lists Texas license number Q1371, 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.

How much does Oriana Ijun Chen, M.D. prescribe under Medicare Part D?

In 2024, Oriana Ijun Chen, M.D. had 492 Medicare Part D claims for 179 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

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.