Mark Junho Im, MD
Emergency Medicine Physician · Houston, TX
Mark Junho Im, MD is an emergency medicine physician with a practice address in Houston, Texas, and NPI 1457572679, issued on May 2, 2007. Check the license (Texas M6668, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Junho Im
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- M6668 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1401 St Joseph Pkwy, Houston, TX 77002
- Phone
- (713) 757-1000
- Enumerated
- May 2, 2007
- Record last updated
- Jul 2, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 188112003 TX
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 1401 St Joseph Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Megan Cannon, M.D.Obstetrics & Gynecology Physician1326459470
- Micana Carrenard, NPFamily Nurse Practitioner1508405507
Verify Mark Junho Im in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M6668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average emergency medicine physician in 2024
41 Medicare Part D claims for 26 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of 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.
Mark Junho Im among 4,885 emergency medicine physician records in Texas
Mark Junho Im, MD 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 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 59% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2009 · 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).
818 emergency medicine physician records list a practice address in Houston
They are 818 of the 61,221 NPPES records with a practice address in Houston, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Houston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Medina Barnes, MDHouston, TX 770021740443373
- Barrington Iruke, MDHouston, TX 770021861607962
- Anju Kuruvilla, MDHouston, TX 770021548476997
- Randolph Nelson, M.D.Houston, TX 770021508846742
- Heather Renfro, MDHouston, TX 770021932729886
- Christopher Souders, M.D.Houston, TX 770021487679874
- David Wong, M.D.Houston, TX 770021366423857
- Troy SonHouston, TX 770031245541986
Common questions
What is Mark Junho Im, MD's NPI number?
Mark Junho Im, MD's National Provider Identifier (NPI) is 1457572679, issued on May 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Junho Im, MD located?
The NPPES record lists a practice address at 1401 St Joseph Pkwy, Houston, TX, 77002. Phone: (713) 757-1000. Providers update this record themselves, so call before visiting.
How can I verify Mark Junho Im, MD's license?
NPPES lists Texas license number M6668, 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 Mark Junho Im, MD prescribe under Medicare Part D?
In 2024, Mark Junho Im, MD had 41 Medicare Part D claims for 26 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.
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.