Christopher Walker, MD
NPI 1114230323 · Internal Medicine Physician · Hilton Head Island, SC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Walker, MD is a Internal Medicine Physician provider in Hilton Head Island, SC (NPI 1114230323).
Provider details
- NPI number
- 1114230323
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- LL32988 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,325 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 35 Minutes99232 | 1,122 | $74 |
| Complex Chronic Care Management Services for Two Or More Chronic Conditions, Each Additional 60 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99489 | 899 | $67 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 373 | $111 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 251 | $163 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 194 | $120 |
| Complex Chronic Care Management Services for Two Or More Chronic Conditions, First 60 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 21 | 21 |
| Apixabanbrand: Eliquis | 20 | 14 |
| Metoprolol Tartrate | 17 | 15 |
| Amlodipine Besylate | 16 | 11 |
| Atorvastatin Calcium | 16 | 11 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 14 | 13 |
| Pantoprazole Sodium |
Practice location
Mailing address
Additional practice locations (5)
- 4500 Memorial DrBelleville, IL 62226-5360Phone: (618) 257-6220Fax: (618) 257-6679
- 5200 Fairview BlvdWyoming, MN 55092-8013Phone: (651) 982-7000
- 955 Ribaut RdBeaufort, SC 29902Phone: (843) 522-5010
- 1801 Sunset BlvdInternal MedicineColumbia, SC 29203Phone: (803) 540-1000Fax: (803) 540-1050
- 25 Hospital Center BlvdHilton Head Island, SC 29926-2738Phone: (843) 784-8224
Registry dates
- Enumerated
- 2010-07-16
- Last updated
- 2026-01-20
- Certified
- 2026-01-20
Frequently asked questions
- What is Christopher Walker's NPI number?
- Christopher Walker's National Provider Identifier (NPI) is 1114230323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Walker's specialty?
- Christopher Walker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Walker located?
- Christopher Walker's practice location on file with NPPES is 20 Paddocks Blvd, Hilton Head Island, SC 29926-3507.
- What is Christopher Walker's phone number?
- The practice phone number listed in the NPPES registry for Christopher Walker is (706) 614-9056.
- Does Christopher Walker accept Medicare?
- Christopher Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Walker's NPI active?
- Yes — Christopher Walker's NPI (1114230323) is active in the NPPES registry as of the last update on 2026-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.