Tara W. Geis, MD
Family Medicine Physician · Sioux Falls, SD
Tara W. Geis, MD is a family medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1689785529, issued on Aug 31, 2006. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Tara W. Geis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 34135 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1115 E 20TH St, Sioux Falls, SD 57105
- Phone
- (605) 339-1783
- Enumerated
- Aug 31, 2006
- Record last updated
- Mar 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (605) 367-7157
- Medicaid ID
- 5613010 SD
- Medicare enrollment
- Enrolled (PECOS I20080212000432); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1997
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 601 in South Dakota → Look up another NPI →
Also registered at 1115 E 20TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tara W. Geis 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
2.5 times the Medicare Part D claims of the average family medicine physician in 2024
8,693 Medicare Part D claims for 216 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 289 claims were for opioids.
Most prescribed
- Levothyroxine Sodium421 claims
- Furosemide336 claims
- Omeprazole329 claims
- Atorvastatin Calcium324 claims
- Amlodipine Besylate271 claims
- Gabapentin242 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.
Bills Medicare through 2 group practices
- Center For Family MedicineSioux Falls, SD
- City OF Sioux FallsSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tara W. Geis among 601 family medicine physician records in South Dakota
Tara W. Geis, 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
- Graduated1997 · median 2008 among the 393 with a school on file
- Record last updated2008 · 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
- David Brechtelsbauer, MDSioux Falls, SD 571051831177674
- Valerie Hearns, MDSioux Falls, SD 571051568456846
- Daniel Heinemann, M.D.Sioux Falls, SD 571051508861329
- Leah Johnson, M.D.Sioux Falls, SD 571051588649636
- Earl Kemp, MDSioux Falls, SD 571051134191547
- Janet Lindemann, MDSioux Falls, SD 571051437143724
- Robin Meyer, D.O.Sioux Falls, SD 571051417929845
- Robert Seidel, MDSioux Falls, SD 571051760488209
Common questions
What is Tara W. Geis, MD's NPI number?
Tara W. Geis, MD's National Provider Identifier (NPI) is 1689785529, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tara W. Geis, MD located?
The NPPES record lists a practice address at 1115 E 20TH St, Sioux Falls, SD, 57105. Phone: (605) 339-1783. Providers update this record themselves, so call before visiting.
How can I verify Tara W. Geis, 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 Tara W. Geis, MD prescribe under Medicare Part D?
In 2024, Tara W. Geis, MD had 8,693 Medicare Part D claims for 216 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.