John Kelemen, M.D.
NPI 1871554212 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Hilton Head Island, SC
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Kelemen, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Hilton Head Island, SC (NPI 1871554212).
Provider details
- NPI number
- 1871554212
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 04-31210 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
161 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) |
|---|---|---|
| Harvest of Vein Using an Endoscope33508 | 44 | $10 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 36 | $993 |
| Coronary Artery Bypass Using Vein Or Artery Graft, 2 Grafts33518 | 24 | $223 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $124 |
| Coronary Artery Bypass Using Artery Graft, 2 Grafts33534 | 14 | $1,954 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 14 | $210 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,564 across 44 records (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
Registry dates
- Enumerated
- 2006-03-28
- Last updated
- 2019-02-25
Frequently asked questions
- What is John Kelemen's NPI number?
- John Kelemen's National Provider Identifier (NPI) is 1871554212, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Kelemen's specialty?
- John Kelemen is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is John Kelemen located?
- John Kelemen's practice location on file with NPPES is 25 Hospital Center Blvd Ste 306, Hilton Head Island, SC 29926-2739.
- What is John Kelemen's phone number?
- The practice phone number listed in the NPPES registry for John Kelemen is (843) 689-8224.
- Does John Kelemen accept Medicare?
- John Kelemen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Kelemen's NPI active?
- Yes — John Kelemen's NPI (1871554212) is active in the NPPES registry as of the last update on 2019-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.