Dale R. Holdiman, MD
Internal Medicine Physician · Sioux City, IA
Dale R. Holdiman, MD is an internal medicine physician with a practice address in Sioux City, Iowa, and NPI 1306894050, issued on May 5, 2006. Check the license (Iowa 20689, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Dale R. Holdiman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20689 IA
Self-reported in NPPES; status is on the state search - Practice location
- 624 Jones St, Sioux City, IA 51105
- Phone
- (712) 279-2510
- Enumerated
- May 5, 2006
- Record last updated
- Oct 17, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (712) 279-2519
- Medicaid IDs
- 100251443-00 IA
7782140 IA
3164657 IA - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 624 Jones St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Lucke, MDInternal Medicine Physician1457309197
Verify Dale R. Holdiman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 20689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
729 Medicare Part D claims for 207 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Lorazepam48 claims
- Pantoprazole Sodium43 claims
- Morphine Sulfate41 claims
- Allopurinol36 claims
- Eliquis27 claims
- Levothyroxine Sodium25 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.
Dale R. Holdiman among 871 internal medicine physician records in Iowa
Dale R. Holdiman, MD is one of 871 internal medicine physician records with a practice address in Iowa. 70% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 62% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 44% of these records are
- Record last updated2007 · 46% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 internal medicine physician records list a practice address in Sioux City
They are 20 of the 1,486 NPPES records with a practice address in Sioux City, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Sioux City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Carlson, M.D.Sioux City, IA 511051609837368
- David Lucke, MDSioux City, IA 511051457309197
- Craig Bainbridge, M.D.Sioux City, IA 511041689750150
- Jolynn Bugbee, M.D.Sioux City, IA 511041801858774
- David Daniels, M.D.Sioux City, IA 511061972558229
- Chakravarthi PuretiSioux City, IA 511041780809004
- Shila Simkhada, M.DSioux City, IA 511041548834336
- Robert Stewart, M.D.Sioux City, IA 511041124104609
Common questions
What is Dale R. Holdiman, MD's NPI number?
Dale R. Holdiman, MD's National Provider Identifier (NPI) is 1306894050, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dale R. Holdiman, MD located?
The NPPES record lists a practice address at 624 Jones St, Sioux City, IA, 51105. Phone: (712) 279-2510. Providers update this record themselves, so call before visiting.
How can I verify Dale R. Holdiman, MD's license?
NPPES lists Iowa license number 20689, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dale R. Holdiman, MD prescribe under Medicare Part D?
In 2024, Dale R. Holdiman, MD had 729 Medicare Part D claims for 207 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.