Gary A. Bubak, MD
Internal Medicine Physician · Wagner, SD
Gary A. Bubak, MD is an internal medicine physician with a practice address in Wagner, South Dakota, and NPI 1558362244, issued on Aug 3, 2005. Check the license (South Dakota 1400, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Gary A. Bubak
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1400 SD
Self-reported in NPPES; status is on the state search - Practice location
- 517 3RD St SW, Wagner, SD 57380
- Phone
- (605) 384-5457
- Enumerated
- Aug 3, 2005
- Record last updated
- Jun 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (605) 384-3057
- Medicaid ID
- 6001080 SD
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 247 in South Dakota → Look up another NPI →
Verify Gary A. Bubak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 1400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
117 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Eliquis27 claims
- Amlodipine Besylate12 claims
- Donepezil Hcl12 claims
- Isosorbide Mononitrate Er12 claims
- Losartan Potassium12 claims
- Rosuvastatin Calcium12 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.
Gary A. Bubak among 247 internal medicine physician records in South Dakota
Gary A. Bubak, MD is one of 247 internal 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2008 · 60% 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 South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in South Dakota
There are 247 internal medicine physician records in South Dakota.
All 247 in South Dakota → Every provider in Wagner → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rebecca Waring, MDMiller, SD 573621568925691
- Marc Armstrong, M.D.Aberdeen, SD 574011326453556
- Beenish Fayyaz, MDAberdeen, SD 574011649620675
- John Fritz, M.D.Aberdeen, SD 574011205870136
- Joan Harriott, MDAberdeen, SD 574011285927095
- Blake Heinz, D.O.Aberdeen, SD 574011871869172
- Nida MahamAberdeen, SD 574011689022584
- Arlin Myrmoe, M.D.Aberdeen, SD 574011184893349
Common questions
What is Gary A. Bubak, MD's NPI number?
Gary A. Bubak, MD's National Provider Identifier (NPI) is 1558362244, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gary A. Bubak, MD located?
The NPPES record lists a practice address at 517 3RD St SW, Wagner, SD, 57380. Phone: (605) 384-5457. Providers update this record themselves, so call before visiting.
How can I verify Gary A. Bubak, MD's license?
NPPES lists South Dakota license number 1400, as entered by the provider. 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 Gary A. Bubak, MD prescribe under Medicare Part D?
In 2024, Gary A. Bubak, MD had 117 Medicare Part D claims; 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.