NPPES file of Aug 9, 2026

Mark Douglas Henderson, C.R.N.A.

Certified Registered Nurse Anesthetist · Fort Sam Houston, TX

Mark Douglas Henderson, C.R.N.A. is a certified registered nurse anesthetist with a practice address in Fort Sam Houston, Texas, and NPI 1861470148, issued on Jan 6, 2006. Check the license (Texas 671885, as entered in NPPES) with the Texas board that licenses this profession; 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
1861470148
Name
Mark Douglas Henderson
Credential
C.R.N.A.
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
671885 TX
Self-reported in NPPES; status is on the state search
Practice location
3851 Roger Brooke Dr, Fort Sam Houston, TX 78234
Phone
(210) 916-8516
Enumerated
Jan 6, 2006
Record last updated
Feb 2, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid IDs
191871609 TX
1918716009 TX
191871608 TX
Medicare enrollment
Enrolled (PECOS I20201230000485); 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 3851 Roger Brooke Dr

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

  1. Francis Agyapong, NPAcute Care Nurse Practitioner1013056704
  2. Abad Ahmed, PHYSICIAN ASSISTANTMedical Physician Assistant1578532321
  3. Anthony Allen, M.D.Vascular & Interventional Radiology Physician1104815174
  4. Paul Allen, PA-C, MPAS, DSC EMPAMedical Physician Assistant1922065234
  5. Angela Allerman, PHARM.D.Pharmacotherapy Pharmacist1376879098
  6. Bryan Alsip, M.D., M.P.H.Public Health & General Preventive Medicine Physician1366431314

Verify Mark Douglas Henderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 671885
    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
Find 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. Southwestern Eye Center LtdLas Cruces, NM

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

Mark Douglas Henderson among 6,097 certified registered nurse anesthetist records in Texas

Mark Douglas Henderson, C.R.N.A. is one of 6,097 certified registered nurse anesthetist records with a practice address in Texas. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 71% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1999 · median 2014 among the 4,734 with a school on file
  • Record last updated2012 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 certified registered nurse anesthetist records list a practice address in Fort Sam Houston

They are 74 of the 2,124 NPPES records with a practice address in Fort Sam Houston, and 6,097 certified registered nurse anesthetist records in Texas.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Brian Benham, CRNAFt Sam Houston, TX 782341740270503
  2. Amy Forrester, CRNAFort Sam Houston, TX 782341598739443
  3. Joseph Helminiak, CRNA MSNSan Antonio, TX 782341124090667
  4. Fiona Inglis, CRNAFort Sam Houston, TX 782341851372411
  5. John Jones, CRNAFort Sam Houston, TX 782341417920018
  6. James McDonald, CRNA,MSN,BSNFort Sam Houston, TX 782341174501480
  7. John NagyFort Sam Houston, TX 782341134195316
  8. Lisa Neisen, CRNAFort Sam Houston, TX 782341194706101

Common questions

What is Mark Douglas Henderson, C.R.N.A.'s NPI number?

Mark Douglas Henderson, C.R.N.A.'s National Provider Identifier (NPI) is 1861470148, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Douglas Henderson, C.R.N.A. located?

The NPPES record lists a practice address at 3851 Roger Brooke Dr, Fort Sam Houston, TX, 78234. Phone: (210) 916-8516. Providers update this record themselves, so call before visiting.

How can I verify Mark Douglas Henderson, C.R.N.A.'s license?

NPPES lists Texas license number 671885, as entered by the provider. 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. 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.