Jonathan Kooiman, MD
NPI 1598273559 · Hospitalist Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Kooiman, MD is a Hospitalist Physician provider in Greenville, SC (NPI 1598273559).
Provider details
- NPI number
- 1598273559
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD87590 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
499 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 179 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 154 | $74 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 56 | $107 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 45 | $163 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 34 | $76 |
| Critical Care, First 30-74 Minutes99291 | 31 | $200 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 18 | 15 |
| Tamsulosin Hcl | 14 | — |
| Ondansetronbrand: Ondansetron Odt | 13 | 13 |
| Pantoprazole Sodium | 13 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 1601 Parkview AveRockford, IL 61107-1822Phone: (815) 395-5628
- 830 S Buncombe RdGreer, SC 29650-2400Phone: (864) 797-8000
- 1215 21st Avenue SouthMedical Center East, North Tower, Suite #6000Nashville, TN 37232-8300Phone: (615) 936-8590
- 1161 21st Ave SouthD3100 Medical Center NorthNashville, TN 37232-2357Phone: (615) 322-0417
- 719 Thompson Ln Ste 20400Nashville, TN 37204-4600Phone: (615) 343-7584Fax: (615) 936-6666
Registry dates
- Enumerated
- 2018-01-11
- Last updated
- 2022-09-06
- Certified
- 2022-09-06
Frequently asked questions
- What is Jonathan Kooiman's NPI number?
- Jonathan Kooiman's National Provider Identifier (NPI) is 1598273559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Kooiman's specialty?
- Jonathan Kooiman is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Kooiman located?
- Jonathan Kooiman's practice location on file with NPPES is 701 Grove Rd Fl 5, Greenville, SC 29605-4210.
- What is Jonathan Kooiman's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Kooiman is (864) 455-4411.
- Does Jonathan Kooiman accept Medicare?
- Jonathan Kooiman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Kooiman's NPI active?
- Yes — Jonathan Kooiman's NPI (1598273559) is active in the NPPES registry as of the last update on 2022-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.