James P. Zwach, MD
Family Medicine Physician · Sioux Falls, SD
James P. Zwach, MD is a family medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1649246422, issued on Feb 23, 2006. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- James P. Zwach
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 42794 MN
Self-reported in NPPES; status is on the state search - Practice location
- 4405 E 26TH St, Sioux Falls, SD 57103
- Phone
- (605) 328-9000
- Enumerated
- Feb 23, 2006
- Record last updated
- Apr 24, 2024
- Medicaid ID
- 1649246422 MN
- Medicare enrollment
- Enrolled (PECOS I20240508001557); may accept Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1999
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 601 in South Dakota → Look up another NPI →
Also registered at 4405 E 26TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Al-Juboori, MDStudent in an Organized Health Care Education/Training Program1013807924
- Mohammad AlzoubaidiPediatrics Physician1841923505
- Stephanie Bargmann, CNPNurse Practitioner1669921136
- Elizabeth Bauer, MDPediatrics Physician1124024153
- Margaret Benson, MDFamily Medicine Physician1780688549
- Julia BluePediatrics Physician1134786676
Verify James P. Zwach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average family medicine physician in 2024
5,638 Medicare Part D claims for 709 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 104 claims were for opioids.
Most prescribed
- Atorvastatin Calcium413 claims
- Lisinopril318 claims
- Omeprazole281 claims
- Losartan Potassium174 claims
- Metoprolol Succinate163 claims
- Tamsulosin Hcl163 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.
James P. Zwach among 601 family medicine physician records in South Dakota
James P. Zwach, MD is one of 601 family medicine physician records with a practice address in South Dakota. 79% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1999 · median 2008 among the 393 with a school on file
- Record last updated2024 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
195 family medicine physician records list a practice address in Sioux Falls
They are 195 of the 6,563 NPPES records with a practice address in Sioux Falls, and 601 family medicine physician records in South Dakota.
All 601 in South Dakota → Every provider in Sioux Falls → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Margaret Benson, MDSioux Falls, SD 571031780688549
- Stephanie Broderson, MDSioux Falls, SD 571031437154606
- Michael Brown, MDSioux Falls, SD 571031609822055
- Andrew Burchett, D.O.Sioux Falls, SD 571031043279383
- Edward ClarkSioux Falls, SD 571031972559300
- Douglas Geise, MDSioux Falls, SD 571031780689968
- Stacia Greene, MDSioux Falls, SD 571031447206891
- Robert Heckmann, MDSioux Falls, SD 571031437154275
Common questions
What is James P. Zwach, MD's NPI number?
James P. Zwach, MD's National Provider Identifier (NPI) is 1649246422, issued on Feb 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James P. Zwach, MD located?
The NPPES record lists a practice address at 4405 E 26TH St, Sioux Falls, SD, 57103. Phone: (605) 328-9000. Providers update this record themselves, so call before visiting.
How can I verify James P. Zwach, MD's license?
Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James P. Zwach, MD prescribe under Medicare Part D?
In 2024, James P. Zwach, MD had 5,638 Medicare Part D claims for 709 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.