Channing Willoughby, MD
NPI 1235336421 · Pain Medicine Physician · Murrells Inlet, SC
Enrolled with Medicare as Practitioner - Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Channing Willoughby, MD is a Pain Medicine Physician provider in Murrells Inlet, SC (NPI 1235336421).
Provider details
- NPI number
- 1235336421
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33509 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
5,957 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,655 | $116 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 581 | $58 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0480 | 570 | $109 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 445 | $65 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 333 | $289 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,494 | 411 |
| Gabapentin | 1,149 | 311 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 1,045 | 287 |
| Tizanidine Hcl | 706 | 195 |
| Pregabalin | 400 | 123 |
| Cyclobenzaprine Hcl | 384 | 116 |
| Tramadol Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22,428 across 114 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
- 2007-06-29
- Last updated
- 2021-03-18
- Certified
- 2021-03-18
Frequently asked questions
- What is Channing Willoughby's NPI number?
- Channing Willoughby's National Provider Identifier (NPI) is 1235336421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Channing Willoughby's specialty?
- Channing Willoughby is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Channing Willoughby located?
- Channing Willoughby's practice location on file with NPPES is 4040 Highway 17, Murrells Inlet, SC 29576-5098.
- What is Channing Willoughby's phone number?
- The practice phone number listed in the NPPES registry for Channing Willoughby is (843) 652-8260.
- Does Channing Willoughby accept Medicare?
- Channing Willoughby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Channing Willoughby's NPI active?
- Yes — Channing Willoughby's NPI (1235336421) is active in the NPPES registry as of the last update on 2021-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.