William Cook, MD
NPI 1639100100 · MOHS-Micrographic Surgery Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Micrographic Dermatologic Surgery (mds) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Cook, MD is a MOHS-Micrographic Surgery Physician provider in Charleston, SC (NPI 1639100100).
Provider details
- NPI number
- 1639100100
- Entity type
- Individual
- Primary specialty
- MOHS-Micrographic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 17169 (SC)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
11,215 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,951 | $85 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 1,663 | $430 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, Each Additional Stage, 1-5 Tissue Blocks17312 | 1,025 | $376 |
| Biopsy of Related Skin Growth, First Growth11102 | 568 | $65 |
| Destruction of Skin Growth, 1-14 Growths17110 | 538 | $102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 433 | 412 |
| Doxycycline Hyclate | 243 | 236 |
| Clindamycin Hcl | 173 | 170 |
| Ciprofloxacin Hcl | 133 | 129 |
| Timolol Maleate | 107 | 76 |
| Mupirocin | 42 | 40 |
| Oxycodone Hcl | 17 | 17 |
| Tramadol Hcl | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2020-10-05
- Certified
- 2020-10-05
Frequently asked questions
- What is William Cook's NPI number?
- William Cook's National Provider Identifier (NPI) is 1639100100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Cook's specialty?
- William Cook is listed in the NPPES registry with a primary specialty of MOHS-Micrographic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Cook located?
- William Cook's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-0001.
- What is William Cook's phone number?
- The practice phone number listed in the NPPES registry for William Cook is (843) 792-1414.
- Does William Cook accept Medicare?
- William Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Cook's NPI active?
- Yes — William Cook's NPI (1639100100) is active in the NPPES registry as of the last update on 2020-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.