James Zwach, MD
NPI 1649246422 · Family Medicine Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Zwach, MD is a Family Medicine Physician provider in Sioux Falls, SD (NPI 1649246422).
Provider details
- NPI number
- 1649246422
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42794 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
426 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $62 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 75 | $92 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 63 | $125 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 63 | $16 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 34 | $33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 413 | 164 |
| Lisinopril | 318 | 122 |
| Omeprazole | 281 | 99 |
| Losartan Potassium | 174 | 67 |
| Metoprolol Succinate | 163 | 66 |
| Tamsulosin Hcl | 163 | 62 |
| Amlodipine Besylate |
Practice location
Mailing address
Additional practice locations (1)
- 610 30th Ave WAlexandria, MN 56308-3426Phone: (320) 763-5123Fax: (320) 763-7883
Registry dates
- Enumerated
- 2006-02-23
- Last updated
- 2024-04-24
- Certified
- 2024-04-24
Frequently asked questions
- What is James Zwach's NPI number?
- James Zwach's National Provider Identifier (NPI) is 1649246422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Zwach's specialty?
- James Zwach is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Zwach located?
- James Zwach's practice location on file with NPPES is 4405 E 26th St, Sioux Falls, SD 57103-4187.
- What is James Zwach's phone number?
- The practice phone number listed in the NPPES registry for James Zwach is (605) 328-9000.
- Does James Zwach accept Medicare?
- James Zwach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Zwach's NPI active?
- Yes — James Zwach's NPI (1649246422) is active in the NPPES registry as of the last update on 2024-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.