Benjamin Thomas Gielda, M.D.
Radiation Oncology Physician · Saint Joseph, MI
Benjamin Thomas Gielda, M.D. is a radiation oncology physician with a practice address in Saint Joseph, Michigan, and NPI 1386801496, issued on May 18, 2008. Check the license (Michigan 4301101556, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Benjamin Thomas Gielda
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 4301101556 MI
125051 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1234 Napier Ave, Saint Joseph, MI 49085
- Phone
- (269) 983-8888
- Enumerated
- May 18, 2008
- Record last updated
- Mar 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 1386801496 MI
- Medicare enrollment
- Enrolled (PECOS I20130121000051); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2006
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 239 in Michigan → Look up another NPI →
Also registered at 1234 Napier Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erik Achramowicz, D.O.Emergency Medicine Physician1598027245
- Scott Achramowicz, PAPhysician Assistant1295244630
- Joseph Aderemi, MDPsychiatry Physician1831726546
- Kristina Aleksoniene, MDInfectious Disease Physician1659545002
- Sydney Alexander, DOFamily Medicine Physician1144952698
- Robert Allen, MDCritical Care Medicine (Internal Medicine) Physician1073540647
Verify Benjamin Thomas Gielda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301101556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average radiation oncology physician in 2024
204 Medicare Part D claims for 70 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 57 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen23 claims
- Lidocaine Hcl Viscous21 claims
- Tamsulosin Hcl19 claims
- Oxycodone-Acetaminophen18 claims
- Oxybutynin Chloride Er15 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.
Industry payments in 2024: $40.41
2 payments; by number, the most common kind was food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Lakeland Medical PracticesSaint Joseph, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Thomas Gielda among 239 radiation oncology physician records in Michigan
Benjamin Thomas Gielda, M.D. is one of 239 radiation oncology physician records with a practice address in Michigan. 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 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2006 · median 2005 among the 172 with a school on file
- Record last updated2015 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Michigan
There are 239 radiation oncology physician records in Michigan.
All 239 in Michigan → Every provider in Saint Joseph → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Randy Mudge, M.D.Battle Creek, MI 490171346200573
- David WallingtonBattle Creek, MI 490171598384380
- Laura Ashack, M.D.Kalamazoo, MI 490071699138958
- Simon Brown, MDKalamazoo, MI 490071992124531
- Allison Hazy, MDKalamazoo, MI 490071093370413
- Mazen Mislmani, M.D.Kalamazoo, MI 490071538489554
- Daniel Schroyer, M.D.Kalamazoo, MI 490071720287048
- Jacquelyn Watson, MDKalamazoo, MI 490071801881065
Common questions
What is Benjamin Thomas Gielda, M.D.'s NPI number?
Benjamin Thomas Gielda, M.D.'s National Provider Identifier (NPI) is 1386801496, issued on May 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Thomas Gielda, M.D. located?
The NPPES record lists a practice address at 1234 Napier Ave, Saint Joseph, MI, 49085. Phone: (269) 983-8888. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Thomas Gielda, M.D.'s license?
NPPES lists Michigan license number 4301101556, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Benjamin Thomas Gielda, M.D. prescribe under Medicare Part D?
In 2024, Benjamin Thomas Gielda, M.D. had 204 Medicare Part D claims for 70 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.