Alexander Nieva Del Castillo, MD
Internal Medicine Physician · Salt Lake City, UT
Alexander Nieva Del Castillo, MD is an internal medicine physician with a practice address in Salt Lake City, Utah, and NPI 1881705168, issued on Aug 31, 2006. Check the license (Utah 3746741205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.
- Name
- Alexander Nieva Del Castillo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 3746741205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1160 E 3900 S, Salt Lake City, UT 84124
- Phone
- (801) 268-7766
- Enumerated
- Aug 31, 2006
- Record last updated
- Dec 5, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (801) 270-3381
- Medicare enrollment
- Enrolled (PECOS I20041001000749); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 664 in Utah → Look up another NPI →
Also registered at 1160 E 3900 S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ronald Brown, MDInterventional Cardiology Physician1447242060
Verify Alexander Nieva Del Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersUtah Medical Licensing Board
Search for license 3746741205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
251 Medicare Part D claims for 51 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium14 claims
- Nafcillin Sodium12 claims
- Dextroamphetamine-Amphetamine11 claims
- Hydrocodone-Acetaminophen11 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.
Industry payments in 2024: $49.79
1 payment: food and beverage; the largest payer was Aurinia Pharma U.S., Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Utah Regional Hospitalists LLCWest Valley, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Nieva Del Castillo among 664 internal medicine physician records in Utah
Alexander Nieva Del Castillo, MD is one of 664 internal medicine physician records with a practice address in Utah. 75% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 60% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1992 · median 2007 among the 354 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
329 internal medicine physician records list a practice address in Salt Lake City
They are 329 of the 21,563 NPPES records with a practice address in Salt Lake City, and 664 internal medicine physician records in Utah.
All 664 in Utah → Every provider in Salt Lake City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- David Kuo, M.D.Salt Lake City, UT 841241508881640
- Margaret Lunt, M.D.Salt Lake City, UT 841241326070731
- Jennifer Norris, MDSalt Lake City, UT 841241932210895
Common questions
What is Alexander Nieva Del Castillo, MD's NPI number?
Alexander Nieva Del Castillo, MD's National Provider Identifier (NPI) is 1881705168, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Nieva Del Castillo, MD located?
The NPPES record lists a practice address at 1160 E 3900 S, Salt Lake City, UT, 84124. Phone: (801) 268-7766. Providers update this record themselves, so call before visiting.
How can I verify Alexander Nieva Del Castillo, MD's license?
NPPES lists Utah license number 3746741205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexander Nieva Del Castillo, MD prescribe under Medicare Part D?
In 2024, Alexander Nieva Del Castillo, MD had 251 Medicare Part D claims for 51 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.