Mark Douglas Gilliland, CSA
Surgical Physician Assistant · Houston, TX
Mark Douglas Gilliland, CSA is a surgical physician assistant with a practice address in Houston, Texas, and NPI 1437456498, issued on Feb 27, 2011. Check the license with the Texas board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Douglas Gilliland
- Credential
- CSA
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- Practice location
- 484 N Post Oak LN, Houston, TX 77024
- Phone
- (713) 303-9714
- Enumerated
- Feb 27, 2011
- Record last updated
- Feb 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,350 in Texas → Look up another NPI →
Verify Mark Douglas Gilliland in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Douglas Gilliland among 1,350 surgical physician assistant records in Texas
Mark Douglas Gilliland, CSA is one of 1,350 surgical physician assistant records with a practice address in Texas. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2011, is newer than 39% of them.
- NPI issued2011 · 39% of these records are older, 57% newer
- In a Medicare fileNo · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2011 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in Texas
There are 1,350 surgical physician assistant records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,350 in Texas → Every provider in Houston → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Meghan Baker, PA-CHouston, TX 770241477840809
- Karen Butler, PAHouston, TX 770241689783573
- Kristen Drouant, PA-CHouston, TX 770241356743801
- Brianna Garrett, PAHouston, TX 770241023997939
- Dubravka Muranovic, LSAHouston, TX 770241023137734
- Olena Slavchev, CSAHouston, TX 770241174417687
- Melissa Stowers, P.A.Houston, TX 770241790930741
- Russell Thomas, PA-CHouston, TX 770241659629376
Common questions
What is Mark Douglas Gilliland, CSA's NPI number?
Mark Douglas Gilliland, CSA's National Provider Identifier (NPI) is 1437456498, issued on Feb 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mark Douglas Gilliland, CSA located?
The NPPES record lists a practice address at 484 N Post Oak LN, Houston, TX, 77024. Phone: (713) 303-9714. Providers update this record themselves, so call before visiting.
How can I verify Mark Douglas Gilliland, CSA's license?
Search the Texas board that licenses this profession; the NPPES record confirms identity 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. 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.