William S. Cantwell, MD
Critical Care Medicine (Internal Medicine) Physician · Alexandria, LA
William S. Cantwell, MD is a critical care medicine (internal medicine) physician with a practice address in Alexandria, Louisiana, and NPI 1851592075, issued on May 29, 2007. Check the license (Louisiana MD.201136, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William S. Cantwell
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- MD.201136 LA
N3533 TX
Self-reported in NPPES; status is on the state search - Practice location
- 211 4TH St, Alexandria, LA 71301
- Phone
- (727) 533-8707
- Enumerated
- May 29, 2007
- Record last updated
- Mar 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (727) 507-3618
- Medicaid IDs
- 208430301 TX
208430302 TX
181274001 AR
1092819 LA - Medicare enrollment
- Enrolled (PECOS I20091209000404); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 2005
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 62 in Louisiana → Look up another NPI →
Also registered at 211 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Youssef Abdelmalek, M.DInternal Medicine Physician1639553233
- Angela Adams, M.D.Emergency Medicine Physician1356652895
- Brian Adams, M.D., M.P.H.Emergency Medicine Physician1396006995
- Paul Albares, MDAnesthesiology Physician1003348590
- Suryadev Allam, MDInternal Medicine Physician1760125231
- Todd Antony, CRNACertified Registered Nurse Anesthetist1043203714
Verify William S. Cantwell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.201136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Northeast Texas Intensivists, PLLCTyler, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William S. Cantwell among 62 critical care medicine (internal medicine) physician records in Louisiana
William S. Cantwell, MD is one of 62 critical care medicine (internal medicine) physician records with a practice address in Louisiana. 92% 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 29% of them.
- NPI issued2007 · 29% of these records are older, 65% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 89% of these records are
- Graduated2005 · median 2010 among the 55 with a school on file
- Record last updated2013 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Louisiana
There are 62 critical care medicine (internal medicine) physician records in Louisiana.
All 62 in Louisiana → Every provider in Alexandria → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Goutham Gudavalli, M.D.Alexandria, LA 713011841604931
- Wayne Honeycutt, MDAlexandria, LA 713011992753552
- Muhammad Faisal Asad Janjua, MDAlexandria, LA 713011326566456
- James Knoepp, MDAlexandria, LA 713011720036007
- Patrick Martin, MDAlexandria, LA 713011205013919
- Marlon Medford, M.D.Alexandria, LA 713011053545152
- Gene Otuonye, MDAlexandria, LA 713011407341381
- Juan Carlos Soliven, MDAlexandria, LA 713011306895602
Common questions
What is William S. Cantwell, MD's NPI number?
William S. Cantwell, MD's National Provider Identifier (NPI) is 1851592075, issued on May 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William S. Cantwell, MD located?
The NPPES record lists a practice address at 211 4TH St, Alexandria, LA, 71301. Phone: (727) 533-8707. Providers update this record themselves, so call before visiting.
How can I verify William S. Cantwell, MD's license?
NPPES lists Louisiana license number MD.201136, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. 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.
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.