Tara Geis, MD
NPI 1689785529 · Family Medicine Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tara Geis, MD is a Family Medicine Physician provider in Sioux Falls, SD (NPI 1689785529).
Provider details
- NPI number
- 1689785529
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 34135 (IA)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
616 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 126 | $102 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 110 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $123 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 52 | $8 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 41 | $8 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 147 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 421 | 49 |
| Furosemide | 336 | 45 |
| Omeprazole | 329 | 40 |
| Atorvastatin Calcium | 324 | 46 |
| Amlodipine Besylate | 271 | 33 |
| Gabapentin | 242 | 28 |
| Potassium Chloride | 241 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2008-03-17
Frequently asked questions
- What is Tara Geis's NPI number?
- Tara Geis's National Provider Identifier (NPI) is 1689785529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tara Geis's specialty?
- Tara Geis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tara Geis located?
- Tara Geis's practice location on file with NPPES is 1115 E 20th St, Sioux Falls, SD 57105-1013.
- What is Tara Geis's phone number?
- The practice phone number listed in the NPPES registry for Tara Geis is (605) 339-1783.
- Does Tara Geis accept Medicare?
- Tara Geis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tara Geis's NPI active?
- Yes — Tara Geis's NPI (1689785529) is active in the NPPES registry as of the last update on 2008-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.