Allister Derwin Arnold, M.D.
Diagnostic Radiology Physician · Corpus Christi, TX
Allister Derwin Arnold, M.D. is a diagnostic radiology physician with a practice address in Corpus Christi, Texas, and NPI 1114993169, issued on Feb 28, 2006. Check the license (Texas M0644, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Allister Derwin Arnold
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- M0644 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3533 S Alameda St, Corpus Christi, TX 78411
- Phone
- (361) 694-5240
- Enumerated
- Feb 28, 2006
- Record last updated
- Oct 4, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (361) 694-4080
- Medicare enrollment
- Enrolled (PECOS I20050406001256); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 3,124 in Texas → Look up another NPI →
Also registered at 3533 S Alameda St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Allister Derwin Arnold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M0644Check 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
- Children's Physician Services OF South TexasMcAllen, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allister Derwin Arnold among 3,124 diagnostic radiology physician records in Texas
Allister Derwin Arnold, M.D. is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 77% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1997 · median 2003 among the 2,277 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Texas
There are 3,124 diagnostic radiology physician records in Texas.
All 3,124 in Texas → Every provider in Corpus Christi → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Martha Chinnery, M.D.Corpus Christi, TX 784111285607788
- Rebecca Delancey, M.D.Corpus Christi, TX 784111134304785
- Daniel Gorsage, M.D.Corpus Christi, TX 784111942559349
- Alvaro Ramos, MDCorpus Christi, TX 784111952384091
- Elena Romero, MDCorpus Christi, TX 784111124090790
- Haynes Heslep, M.D.Corpus Christi, TX 784121861463598
- Michael Michell, MDCorpus Christi, TX 784141427249614
- Erin Moody, MDCorpus Christi, TX 784141922260884
Common questions
What is Allister Derwin Arnold, M.D.'s NPI number?
Allister Derwin Arnold, M.D.'s National Provider Identifier (NPI) is 1114993169, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allister Derwin Arnold, M.D. located?
The NPPES record lists a practice address at 3533 S Alameda St, Corpus Christi, TX, 78411. Phone: (361) 694-5240. Providers update this record themselves, so call before visiting.
How can I verify Allister Derwin Arnold, M.D.'s license?
NPPES lists Texas license number M0644, 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.
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.