James Walter Castillo, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · Edinburg, TX
James Walter Castillo, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Edinburg, Texas, and NPI 1063401776, issued on Oct 14, 2005. Check the license (Texas M1041, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Walter Castillo
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- M1041 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5501 S Mccoll RD, Edinburg, TX 78539
- Phone
- (956) 362-8677
- Enumerated
- Oct 14, 2005
- Record last updated
- Jul 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (956) 362-7253
- Medicaid IDs
- 177737702 TX
177737703 TX - Medicare enrollment
- Enrolled (PECOS I20051005000968); accepts Medicare assignment
- Medical or professional school
- University Of Miami, Lm Miller School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 169 in Texas → Look up another NPI →
Also registered at 5501 S Mccoll RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohammed Abu-Deiab, CRNACertified Registered Nurse Anesthetist1184017337
- Jonathan Afari, MDStudent in an Organized Health Care Education/Training Program1629822945
- Aileen Aguilar, MDFamily Medicine Physician1205396405
- Ruben Aguilera, CRNACertified Registered Nurse Anesthetist1639887482
- Adetutu Akinyode, MDStudent in an Organized Health Care Education/Training Program1669274742
- Ans Albustamy, MDInternal Medicine Physician1831713445
Verify James Walter Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M1041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
429 Medicare Part D claims for 81 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Levothyroxine Sodium36 claims
- Hydromorphone Hcl28 claims
- Losartan Potassium16 claims
- Alprazolam14 claims
- Clopidogrel14 claims
- Omeprazole12 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.
Bills Medicare through one group practice
- Renaissance Medical FoundationEdinburg, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Walter Castillo among 169 hospice and palliative medicine (internal medicine) physician records in Texas
James Walter Castillo, MD is one of 169 hospice and palliative medicine (internal medicine) physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2002 · median 2012 among the 136 with a school on file
- Record last updated2019 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Texas
There are 169 hospice and palliative medicine (internal medicine) physician records in Texas.
All 169 in Texas → Every provider in Edinburg → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Sally Kelley, MDHarlingen, TX 785521396801213
- May Bowman, M.D.Georgetown, TX 786281548467905
- Dennis Pacl, MDManor, TX 786531346253713
- Hope Engelbrecht, M.D.Round Rock, TX 786651407388531
- Patrick Robinson, M.D.Round Rock, TX 786651811331895
- Stephen Bekanich, M.D.Austin, TX 787011578587770
- Quan Dang, M.D.Austin, TX 787011316967946
- Clarissa Johnston, MDAustin, TX 787011649342445
Common questions
What is James Walter Castillo, MD's NPI number?
James Walter Castillo, MD's National Provider Identifier (NPI) is 1063401776, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Walter Castillo, MD located?
The NPPES record lists a practice address at 5501 S Mccoll RD, Edinburg, TX, 78539. Phone: (956) 362-8677. Providers update this record themselves, so call before visiting.
How can I verify James Walter Castillo, MD's license?
NPPES lists Texas license number M1041, 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 James Walter Castillo, MD prescribe under Medicare Part D?
In 2024, James Walter Castillo, MD had 429 Medicare Part D claims for 81 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.