Mark Mcilwain, DMD, MD
NPI 1720045685 · Oral & Maxillofacial Surgery (D.M.D.) · Sheffield, AL
Mark Mcilwain, DMD, MD is a Oral & Maxillofacial Surgery (D.M.D.) provider in Sheffield, AL (NPI 1720045685).
Provider details
- NPI number
- 1720045685
- Entity type
- Individual
- Primary specialty
- Oral & Maxillofacial Surgery (D.M.D.)Allopathic & Osteopathic Physicians
- Credential
- DMD, MD
- Sex
- Male
- License
- LNO3783 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 319 | 233 |
| Amoxicillin | 290 | 207 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 218 | 192 |
| Lorazepam | 63 | 58 |
| Clindamycin Hcl | 55 | 42 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 35 | 19 |
| Fluocinonide | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2025-09-11
Frequently asked questions
- What is Mark Mcilwain's NPI number?
- Mark Mcilwain's National Provider Identifier (NPI) is 1720045685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mcilwain's specialty?
- Mark Mcilwain is listed in the NPPES registry with a primary specialty of Oral & Maxillofacial Surgery (D.M.D.) (Allopathic & Osteopathic Physicians).
- Where is Mark Mcilwain located?
- Mark Mcilwain's practice location on file with NPPES is 398 Ashe Blvd, Sheffield, AL 35660-1729.
- What is Mark Mcilwain's phone number?
- The practice phone number listed in the NPPES registry for Mark Mcilwain is (256) 383-1499.
- Is Mark Mcilwain's NPI active?
- Yes — Mark Mcilwain's NPI (1720045685) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.