NPI registry status
Active
2026 NPPES data Oral and Maxillofacial Surgery (Dentist) NPI 1720045685 DMD, MD
Verify on CMS → Mark McIlwain, DMD, MD
Oral and Maxillofacial Surgery (Dentist) in Sheffield, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,769 in Oral and Maxillofacial Surgery (Dentist), and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 306 beneficiaries · Oral and Maxillofacial Surgery (Dentist) avg: 407
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Mark McIlwain, DMD, MD filed 1,101 Medicare Part D claims in 2024 as an Oral and Maxillofacial Surgery (Dentist) in Sheffield, Alabama.
- 1K
- Part D claims, 2024
- ≥77th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Mark McIlwain, DMD, MD
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1720045685), first enumerated 04/26/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,101 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1720045685 · Oral and Maxillofacial Surgery (Dentist)
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1720045685
- ENUM-LEGACY 2006
- TAX-MID 8K Oral and
- RX-MID 1,101
- BOOK-THIN 76 in Alabama
- PHOTO-ENUM Michael Will · 2006
Mark McIlwain, DMD, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,101 ≥ 77th percentile 77% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Mark McIlwain, DMD, MD?
Quality data not reportedPrimary specialty
Oral and Maxillofacial Surgery (Dentist)
Medicare Part D claims
1,101 171% vs specialty avg
Specialty distribution in Alabama
How Oral and Maxillofacial Surgery (Dentist) compares to other specialties among Alabama providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Oral and Maxillofacial Surgery (Dentist). Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1720045685 |
|---|---|
| Specialty | Oral and Maxillofacial Surgery (Dentist) |
| Credentials | DMD, MD |
| Gender | Male |
| NPI Issued | 04/26/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,101
Total Claims
$6K
Total Drug Cost
306
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,107.7
- Total Day Supply
- 10,946
- Brand Drug Cost
- $0
- Generic Drug Cost
- $6K
- Opioid Claims
- 235 (21.3% rate)
- Antibiotic Claims
- 405
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 29, 65-74: 146, 75-84: 96, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mark McIlwain, DMD, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
319 claims
- Amoxicillin
Amoxicillin
290 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
218 claims
- Lorazepam 63
Lorazepam
63 claims
- Clindamycin Hcl 55
Clindamycin Hcl
55 claims
- Amoxicillin-Clavul… 35
Amoxicillin-Clavulanate Potass
35 claims
- Fluocinonide 11
Fluocinonide
11 claims
| Drug | Claims |
|---|---|
| Chlorhexidine Gluconate | 319 |
| Amoxicillin | 290 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 218 |
| Lorazepam | 63 |
| Clindamycin Hcl | 55 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 35 |
| Fluocinonide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Oral and Maxillofacial Surgery (Dentist) in AL →
All providers in Alabama →
Compare specialties →
Oral and Maxillofacial Surgery (Dentist) Overview
How Mark McIlwain, DMD, MD fits within the Oral and Maxillofacial Surgery (Dentist) landscape nationally.
7,769
Oral and Maxillofacial Surgery (Dentist) Providers in US
52
States with Oral and Maxillofacial Surgery (Dentist)
407
Avg Claims per Provider
Mark McIlwain, DMD, MD's 1,101 claims are above the specialty average of 407.
Nationwide Oral and Maxillofacial Surgery (Dentist) peers with similar MIPS or enrollment year
Two federal-record peer sets for McIlwain, both outside Alabama so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Oral and Maxillofacial Surgery (Dentist) Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as McIlwain.
One of 76 Oral and Maxillofacial Surgery (Dentist) providers enrolled in Alabama, 5 are shown here.
Dr. Rocklin Alling
DDS
Vestavia Hills, AL
Dr. David Ashley
MD, DMD
Birmingham, AL
Dr. Jesse Austin
DMD
Montgomery, AL
Dr. Warren Bailey
D.M.D.
Birmingham, AL
Dr. Gregory Bess
M.D., D.M.D.
Dothan, AL
Compare Oral and Maxillofacial Surgery (Dentist) nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark McIlwain, DMD, MD's specialty? ▼
Mark McIlwain, DMD, MD specializes in Oral and Maxillofacial Surgery (Dentist) and practices in Sheffield, Alabama. Credentials: DMD, MD.
How much does Mark McIlwain, DMD, MD prescribe under Medicare Part D? ▼
In 2024, Mark McIlwain, DMD, MD wrote 1,101 Medicare Part D claims totaling $6K in drug costs for 306 beneficiaries.
Where is Mark McIlwain, DMD, MD located? ▼
Mark McIlwain, DMD, MD is located at 398 ASHE BLVD, Sheffield, AL, 35660. Phone: (256) 383-1499.
What is Mark McIlwain, DMD, MD's NPI number? ▼
Mark McIlwain, DMD, MD's National Provider Identifier (NPI) is 1720045685, issued on 04/26/2006.
Does Mark McIlwain, DMD, MD prescribe opioids? ▼
Yes, Mark McIlwain, DMD, MD had 235 opioid claims in 2024 with an opioid prescribing rate of 21.3%.
How many Oral and Maxillofacial Surgery (Dentist) providers are there in the US? ▼
There are 7,769 Oral and Maxillofacial Surgery (Dentist) providers across 52 states in the US. The average Oral and Maxillofacial Surgery (Dentist) provider writes 407 Medicare Part D claims per year.
What drugs does Mark McIlwain, DMD, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark McIlwain, DMD, MD's most frequently prescribed drugs include Chlorhexidine Gluconate, Amoxicillin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark McIlwain, DMD, MD accept Medicare? ▼
Mark McIlwain, DMD, MD appears in CMS Medicare data with 1,101 Part D claims and 306 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark McIlwain, DMD, MD's credentials? ▼
Mark McIlwain, DMD, MD's NPI is 1720045685 with credentials DMD, MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.