Jonathan Michael Kooiman, MD
Hospitalist Physician · Greenville, SC
Jonathan Michael Kooiman, MD is a hospitalist physician with a practice address in Greenville, South Carolina, and NPI 1598273559, issued on Jan 11, 2018. Check the license (South Carolina MD87590, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Jonathan Michael Kooiman
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD87590 SC
Self-reported in NPPES; status is on the state search - Practice location
- 701 Grove RD FL 5, Greenville, SC 29605
- Phone
- (864) 455-4411
- Enumerated
- Jan 11, 2018
- Record last updated
- Sep 6, 2022
- Fax
- (864) 455-4480
- Medicaid ID
- PENDING SC
- Medicare enrollment
- Enrolled (PECOS I20220919000835); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 470 in South Carolina → Look up another NPI →
Also registered at 701 Grove RD FL 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jonathan Michael Kooiman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license MD87590Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average hospitalist physician in 2024
255 Medicare Part D claims for 101 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Prednisone18 claims
- Tamsulosin Hcl14 claims
- Ondansetron Odt13 claims
- Pantoprazole Sodium13 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: $19.22
1 payment: food and beverage; the largest payer was Csl Behring. The 7,324 providers of this specialty with any payment received $494.84 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
- Prisma Health University Medical GroupGreenville, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Michael Kooiman among 470 hospitalist physician records in South Carolina
Jonathan Michael Kooiman, MD is one of 470 hospitalist physician records with a practice address in South Carolina. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 75% of them.
- NPI issued2018 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2017 · median 2011 among the 409 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
140 hospitalist physician records list a practice address in Greenville
They are 140 of the 10,264 NPPES records with a practice address in Greenville, and 470 hospitalist physician records in South Carolina.
All 470 in South Carolina → Every provider in Greenville → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Bonnie Barr, M.D.Greenville, SC 296051437108602
- Haritha Boppana, MDGreenville, SC 296051750386454
- Michael Cain, M.D.Greenville, SC 296051922058494
- Robert Cartledge, M.D.Greenville, SC 296051043262561
- Grazyna Charowska, M.D.Greenville, SC 296051992755599
- Steven Connelly, MDGreenville, SC 296051780643981
- John Gemmell, MDGreenville, SC 296051750338679
- Kevin Gilroy, M.D.Greenville, SC 296051679531008
Common questions
What is Jonathan Michael Kooiman, MD's NPI number?
Jonathan Michael Kooiman, MD's National Provider Identifier (NPI) is 1598273559, issued on Jan 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Michael Kooiman, MD located?
The NPPES record lists a practice address at 701 Grove RD FL 5, Greenville, SC, 29605. Phone: (864) 455-4411. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Michael Kooiman, MD's license?
NPPES lists South Carolina license number MD87590, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jonathan Michael Kooiman, MD prescribe under Medicare Part D?
In 2024, Jonathan Michael Kooiman, MD had 255 Medicare Part D claims for 101 beneficiaries; the average among hospitalist physician prescribers was 521. 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.