Stephen Kalhorn, M.D.
NPI 1235333022 · Neurological Surgery Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Kalhorn, M.D. is a Neurological Surgery Physician provider in Charleston, SC (NPI 1235333022).
Provider details
- NPI number
- 1235333022
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
631 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 110 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 99 | $84 |
| Fusion of Additional Segment of Spine22614 | 92 | $342 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 80 | $118 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 44 | $197 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 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
Registry dates
- Enumerated
- 2007-06-13
- Last updated
- 2020-10-21
- Certified
- 2020-10-21
Frequently asked questions
- What is Stephen Kalhorn's NPI number?
- Stephen Kalhorn's National Provider Identifier (NPI) is 1235333022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Kalhorn's specialty?
- Stephen Kalhorn is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Kalhorn located?
- Stephen Kalhorn's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-8908.
- What is Stephen Kalhorn's phone number?
- The practice phone number listed in the NPPES registry for Stephen Kalhorn is (843) 792-1414.
- Does Stephen Kalhorn accept Medicare?
- Stephen Kalhorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Kalhorn's NPI active?
- Yes — Stephen Kalhorn's NPI (1235333022) is active in the NPPES registry as of the last update on 2020-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.