Dexter Casta, M.D.
Internal Medicine Physician · Litchfield, MN
Dexter Casta, M.D. is an internal medicine physician with a practice address in Litchfield, Minnesota, and NPI 1194043034, issued on May 15, 2010. Check the license (Minnesota 57378, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Dexter Casta
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 57378 MN
Self-reported in NPPES; status is on the state search - Practice location
- 520 S Sibley Ave, Litchfield, MN 55355
- Phone
- (320) 693-3233
- Enumerated
- May 15, 2010
- Entity
- Type 1 · individual
Also registered at 520 S Sibley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Whitney Bertram-Reents, MDFamily Medicine Physician1134626476
- Cassandra Bulau, MDFamily Medicine Physician1275891293
- Tasha NelsonPhysician Assistant1790244457
- Scott Schultz, MDObstetrics & Gynecology Physician1033170246
Verify Dexter Casta in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 57378Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
11,788 Medicare Part D claims for 1,271 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 193 claims were for opioids.
Most prescribed
- Atorvastatin Calcium543 claims
- Prednisone459 claims
- Spironolactone390 claims
- Gabapentin368 claims
- Omeprazole367 claims
- Metoprolol Succinate324 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.
One hospital or facility affiliation
- Centracare Clinic Southwest LLCWillmar, MN
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Internal Medicine Physician providers in Minnesota
There are 3,440 internal medicine physician records in Minnesota.
Other internal medicine physician records in Minnesota
- Christopher Aakre, MDRochester, MN1508151663
- Karen Aarestad, MDBrainerd, MN1275510216
- Peter Aas, MDDuluth, MN1063455848
- Saud Abaalkhail, M.B.,B.S.Minneapolis, MN1982180733
- Mohamad Abbas, M.D.Saint Paul, MN1154404549
- Akshar Abbott, M.D.Minneapolis, MN1730459231
- Nadhem Abdallah, MDMinneapolis, MN1396423810
- Raed Abdelhadi, MDMinneapolis, MN1518057413
- Sarah Abdul Jabbar, MBBSSt Cloud, MN1932489002
- Ahmad Abdulkarim, MDSaint Paul, MN1578522991
Common questions
What is Dexter Casta, M.D.'s NPI number?
Dexter Casta, M.D.'s National Provider Identifier (NPI) is 1194043034, issued on May 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Dexter Casta, M.D. located?
The NPPES record lists a practice address at 520 S Sibley Ave, Litchfield, MN, 55355. Phone: (320) 693-3233. Providers update this record themselves, so call before visiting.
How can I verify Dexter Casta, M.D.'s license?
NPPES lists Minnesota license number 57378, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dexter Casta, M.D. prescribe under Medicare Part D?
In 2024, Dexter Casta, M.D. had 11,788 Medicare Part D claims for 1,271 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.