NPI registry status
Active
2026 NPPES data Oral and Maxillofacial Surgery (Dentist) NPI 1821047739 DMD
Verify on CMS → Richard Marks, DMD
Oral and Maxillofacial Surgery (Dentist) in Sumter, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,632 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
471
Medicare Part D claims · 195 beneficiaries · Oral and Maxillofacial Surgery (Dentist) avg: 378
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Richard Marks, DMD filed 471 Medicare Part D claims in 2023 as an Oral and Maxillofacial Surgery (Dentist) in Sumter, South Carolina.
- 471
- Part D claims, 2023
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.
Richard Marks, DMD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
471 Top 38% higher than 62% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Richard Marks, DMD?
Quality data not reportedPrimary specialty
Oral and Maxillofacial Surgery (Dentist)
Medicare Part D claims
471 25% vs specialty avg
Specialty distribution in South Carolina
How Oral and Maxillofacial Surgery (Dentist) compares to other specialties among South Carolina 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).
Richard Marks, DMD appears in the CMS NPPES registry as an Oral and Maxillofacial Surgery (Dentist) provider holding DMD credentials at 5 PROFESSIONAL CT, Sumter, SC, 29150, with a listed phone of (803) 469-2044. NPI 1821047739 was issued on 05/08/2006.
Medicare Part D records for calendar year 2023 show 471 prescription claims written by this provider, covering 195 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 37.8%.
Oral and Maxillofacial Surgery (Dentist) is a mid-sized specialty nationwide, with 7,632 enrolled providers across 52 states and an average of 378 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1821047739 |
|---|---|
| Specialty | Oral and Maxillofacial Surgery (Dentist) |
| Credentials | DMD |
| Gender | Male |
| NPI Issued | 05/08/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
471
Total Claims
$2K
Total Drug Cost
195
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 471
- Total Day Supply
- 2,123
- Generic Drug Cost
- $2K
- Opioid Claims
- 178 (37.8% rate)
- Antibiotic Claims
- 212
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 25, 65-74: 85, 75-84: 61, 85+: 24
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Richard Marks, DMD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
149 claims
- Amoxicillin
Amoxicillin
85 claims
- Doxycycline Hyclate 50
Doxycycline Hyclate
50 claims
- Clindamycin Hcl 49
Clindamycin Hcl
49 claims
- Diazepam 32
Diazepam
32 claims
- Promethazine Hcl 21
Promethazine Hcl
21 claims
- Tramadol Hcl 15
Tramadol Hcl
15 claims
- Amoxicillin-Clavul… 14
Amoxicillin-Clavulanate Potass
14 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 149 |
| Amoxicillin | 85 |
| Doxycycline Hyclate | 50 |
| Clindamycin Hcl | 49 |
| Diazepam | 32 |
| Promethazine Hcl | 21 |
| Tramadol Hcl | 15 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 14 |
| Methylprednisolone | 12 |
| Azithromycin | 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 SC →
All providers in South Carolina →
Compare specialties →
Oral and Maxillofacial Surgery (Dentist) Overview
How Richard Marks, DMD fits within the Oral and Maxillofacial Surgery (Dentist) landscape nationally.
7,632
Oral and Maxillofacial Surgery (Dentist) Providers in US
52
States with Oral and Maxillofacial Surgery (Dentist)
378
Avg Claims per Provider
Richard Marks, DMD's 471 claims are above the specialty average of 378.
Nearby Oral and Maxillofacial Surgery (Dentist) Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Marks.
Dr. Ricardo Abakah
D.D.S.
Goose Creek, SC
Dr. Matthew Barefoot
D.D.S., M.D.
Mt Pleasant, SC
Dr. Jonathan Bean
D.M.D.
Columbia, SC
Dr. David Beltran
DDS
Fort Jackson, SC
Dr. Mark Billman
DMD MD
Rock Hill, SC
Compare Oral and Maxillofacial Surgery (Dentist) nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oral and Maxillofacial Surgery (Dentist) peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Explore South Carolina
Frequently Asked Questions
What is Richard Marks, DMD's specialty? ▼
Richard Marks, DMD specializes in Oral and Maxillofacial Surgery (Dentist) and practices in Sumter, South Carolina. Credentials: DMD.
How much does Richard Marks, DMD prescribe under Medicare Part D? ▼
In 2023, Richard Marks, DMD wrote 471 Medicare Part D claims totaling $2K in drug costs for 195 beneficiaries.
Where is Richard Marks, DMD located? ▼
Richard Marks, DMD is located at 5 PROFESSIONAL CT, Sumter, SC, 29150. Phone: (803) 469-2044.
What is Richard Marks, DMD's NPI number? ▼
Richard Marks, DMD's National Provider Identifier (NPI) is 1821047739, issued on 05/08/2006.
Does Richard Marks, DMD prescribe opioids? ▼
Yes, Richard Marks, DMD had 178 opioid claims in 2023 with an opioid prescribing rate of 37.8%.
How many Oral and Maxillofacial Surgery (Dentist) providers are there in the US? ▼
There are 7,632 Oral and Maxillofacial Surgery (Dentist) providers across 52 states in the US. The average Oral and Maxillofacial Surgery (Dentist) provider writes 378 Medicare Part D claims per year.
What drugs does Richard Marks, DMD prescribe most often? ▼
Based on 2023 Medicare Part D data, Richard Marks, DMD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Amoxicillin, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Richard Marks, DMD accept Medicare? ▼
Richard Marks, DMD appears in CMS Medicare data with 471 Part D claims and 195 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Richard Marks, DMD's credentials? ▼
Richard Marks, DMD's NPI is 1821047739 with credentials DMD. 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.