Robert Spencer Kirkland, MD
Radiation Oncology Physician · Grand Rapids, MI
Robert Spencer Kirkland, MD is a radiation oncology physician with a practice address in Grand Rapids, Michigan, and NPI 1578940029, issued on May 5, 2015. Check the license (Michigan 4301504790, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Robert Spencer Kirkland
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 4301504790 MI
Self-reported in NPPES; status is on the state search - Practice location
- 145 Michigan St NE Ste 1100, Grand Rapids, MI 49503
- Phone
- (616) 486-5750
- Enumerated
- May 5, 2015
- Record last updated
- Mar 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20210511001702); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 239 in Michigan → Look up another NPI →
Also registered at 145 Michigan St NE Ste 1100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gina Rebesco, MDRadiation Oncology Physician1013444967
- Paul Thieme, DORadiation Oncology Physician1568535938
Verify Robert Spencer Kirkland in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301504790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average radiation oncology physician in 2024
179 Medicare Part D claims for 87 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Tamsulosin Hcl75 claims
- Lidocaine Hcl Viscous28 claims
- Hydrocodone-Acetaminophen20 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: $206.10
6 payments; by number, the most common kind was food and beverage; the largest payer was icotec Medical 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
- Radiation Oncology Centers PCReed City, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Spencer Kirkland among 239 radiation oncology physician records in Michigan
Robert Spencer Kirkland, MD 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2015 · median 2005 among the 172 with a school on file
- Record last updated2026 · 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 Grand Rapids → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Joshua Corteville, MDGrand Rapids, MI 495031093203457
- John Edlund, MDGrand Rapids, MI 495031841215878
- Celine Eid, MDGrand Rapids, MI 495031447047774
- Patrick Fabrizio, MDGrand Rapids, MI 495031356350938
- Anudeeta Gautam, MDGrand Rapids, MI 495031699562017
- Michael Mahacek, MDGrand Rapids, MI 495031922021484
- Brandon Mancini, M.D.Grand Rapids, MI 495031366731838
- Caroline Oska, M.D.Grand Rapids, MI 495031952006736
Common questions
What is Robert Spencer Kirkland, MD's NPI number?
Robert Spencer Kirkland, MD's National Provider Identifier (NPI) is 1578940029, issued on May 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Robert Spencer Kirkland, MD located?
The NPPES record lists a practice address at 145 Michigan St NE Ste 1100, Grand Rapids, MI, 49503. Phone: (616) 486-5750. Providers update this record themselves, so call before visiting.
How can I verify Robert Spencer Kirkland, MD's license?
NPPES lists Michigan license number 4301504790, 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 Robert Spencer Kirkland, MD prescribe under Medicare Part D?
In 2024, Robert Spencer Kirkland, MD had 179 Medicare Part D claims for 87 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.