NPI registry status
Active
2026 NPPES data Oral & Maxillofacial Surgery (D.M.D.) NPI 1538143508 DDS
Verify on CMS → Mark Billy, DDS
Oral & Maxillofacial Surgery (D.M.D.) in Youngstown, Ohio.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,116 in Oral & Maxillofacial Surgery (D.M.D.), 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 · 456 beneficiaries · Oral & Maxillofacial Surgery (D.M.D.) avg: 324
Industry payments
$259.57
8 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Billy, DDS filed 1,239 Medicare Part D claims in 2023 as a Oral & Maxillofacial Surgery (D.M.D.) in Youngstown, Ohio.
- 1K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Mark Billy, DDS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,239 Top 22% higher than 78% 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
✓
Board certification likely (heuristic, not verified)
Mark Billy, DDS practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Billy, DDS?
Quality data not reportedPrimary specialty
Oral & Maxillofacial Surgery (D.M.D.)
Medicare Part D claims
1,239 282% vs specialty avg
Specialty distribution in Ohio
How Oral & Maxillofacial Surgery (D.M.D.) compares to other specialties among Ohio 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 & Maxillofacial Surgery (D.M.D.). 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).
Mark Billy, DDS appears in the CMS NPPES registry as an Oral & Maxillofacial Surgery (D.M.D.) provider holding DDS credentials at 1001 COVINGTON ST, Youngstown, OH, 44510, with a listed phone of (330) 480-3195. NPI 1538143508 was issued on 12/02/2005.
Medicare Part D records for calendar year 2023 show 1,239 prescription claims written by this provider, covering 456 Medicare beneficiaries and totaling roughly $7K in drug spend, with an opioid prescribing rate of 14.0%.
Oral & Maxillofacial Surgery (D.M.D.) is a narrow specialty nationwide, with 1,116 enrolled providers across 52 states and an average of 324 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 | 1538143508 |
|---|---|
| Specialty | Oral & Maxillofacial Surgery (D.M.D.) |
| Credentials | DDS |
| Gender | Male |
| NPI Issued | 12/02/2005 |
Hospital and facility affiliations
Facilities where Mark Billy, DDS bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Mill Creek Oral And Maxillofacial Surgery Associates Inc
Austintown, OH
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mark Billy, DDS. Source: openpaymentsdata.cms.gov.
Total received
$260
Largest payer
ZIMVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Ohio OMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Mark Billy, DDS. To verify Mark Billy, DDS's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,239
Total Claims
$7K
Total Drug Cost
456
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,242
- Total Day Supply
- 11,958
- Generic Drug Cost
- $6K
- Opioid Claims
- 174 (14.0% rate)
- Antibiotic Claims
- 531
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 25, 65-74: 235, 75-84: 151, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Billy, DDS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
443 claims
- Amoxicillin
Amoxicillin
393 claims
- Hydrocodone-Acetam… 127
Hydrocodone-Acetaminophen
127 claims
- Clindamycin Hcl 74
Clindamycin Hcl
74 claims
- Ibuprofen 43
Ibuprofen
43 claims
- Penicillin V Potas… 40
Penicillin V Potassium
40 claims
- Acetaminophen-Code… 31
Acetaminophen-Codeine
31 claims
- Amoxicillin-Clavul… 16
Amoxicillin-Clavulanate Potass
16 claims
| Drug | Claims |
|---|---|
| Chlorhexidine Gluconate | 443 |
| Amoxicillin | 393 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 127 |
| Clindamycin Hcl | 74 |
| Ibuprofen | 43 |
| Penicillin V Potassium | 40 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 31 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 16 |
| Tramadol Hcl | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Oral & Maxillofacial Surgery (D.M.D.) Overview
How Mark Billy, DDS fits within the Oral & Maxillofacial Surgery (D.M.D.) landscape nationally.
1,116
Oral & Maxillofacial Surgery (D.M.D.) Providers in US
52
States with Oral & Maxillofacial Surgery (D.M.D.)
324
Avg Claims per Provider
Mark Billy, DDS's 1,239 claims are above the specialty average of 324.
Nearby Oral & Maxillofacial Surgery (D.M.D.) Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Billy.
Dalal Alajmi
Cleveland, OH
Dr. Bamidele Apapa
DDS
Dayton, OH
Dr. Michael Grau
DMD
Cincinnati, OH
Dr. Michael Grau
D.M.D.
Cincinnati, OH
Dr. Allen Herpy
DDS MS
Mayfield Hts, OH
Compare Oral & Maxillofacial Surgery (D.M.D.) 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 Ohio medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oral & Maxillofacial Surgery (D.M.D.) 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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Frequently Asked Questions
What is Mark Billy, DDS's specialty? ▼
Mark Billy, DDS specializes in Oral & Maxillofacial Surgery (D.M.D.) and practices in Youngstown, Ohio. Credentials: DDS.
How much does Mark Billy, DDS prescribe under Medicare Part D? ▼
In 2023, Mark Billy, DDS wrote 1,239 Medicare Part D claims totaling $7K in drug costs for 456 beneficiaries.
Where is Mark Billy, DDS located? ▼
Mark Billy, DDS is located at 1001 COVINGTON ST, Youngstown, OH, 44510. Phone: (330) 480-3195.
What is Mark Billy, DDS's NPI number? ▼
Mark Billy, DDS's National Provider Identifier (NPI) is 1538143508, issued on 12/02/2005.
Does Mark Billy, DDS prescribe opioids? ▼
Yes, Mark Billy, DDS had 174 opioid claims in 2023 with an opioid prescribing rate of 14.0%.
How many Oral & Maxillofacial Surgery (D.M.D.) providers are there in the US? ▼
There are 1,116 Oral & Maxillofacial Surgery (D.M.D.) providers across 52 states in the US. The average Oral & Maxillofacial Surgery (D.M.D.) provider writes 324 Medicare Part D claims per year.
What drugs does Mark Billy, DDS prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Billy, DDS'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 Billy, DDS accept Medicare? ▼
Mark Billy, DDS appears in CMS Medicare data with 1,239 Part D claims and 456 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Billy, DDS's credentials? ▼
Mark Billy, DDS's NPI is 1538143508 with credentials DDS. 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.