NPI registry status
Active
2026 NPPES data Dentist NPI 1609498385 DMD
Verify on CMS → Marc Johnson, DMD
Dentist in Robinson, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 93,793 in 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
139
Medicare Part D claims · 68 beneficiaries · Dentist avg: 87
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Marc Johnson, DMD filed 139 Medicare Part D claims in 2023 as a Dentist in Robinson, Texas.
- 139
- 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.
Marc Johnson, DMD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
139 35th percentile higher than 35% 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 Marc Johnson, DMD?
Quality data not reportedPrimary specialty
Dentist
Medicare Part D claims
139 60% vs specialty avg
Specialty distribution in Texas
How Dentist compares to other specialties among Texas 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 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).
Marc Johnson, DMD appears in the CMS NPPES registry as a Dentist provider holding DMD credentials at 421 N ROBINSON DR, Robinson, TX, 76706, with a listed phone of (254) 662-3306. NPI 1609498385 was issued on 05/15/2020.
Medicare Part D records for calendar year 2023 show 139 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $521 in drug spend, with an opioid prescribing rate of 33.8%.
Dentist is a high-volume specialty nationwide, with 93,793 enrolled providers across 56 states and an average of 87 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 | 1609498385 |
|---|---|
| Specialty | Dentist |
| Credentials | DMD |
| Gender | Male |
| NPI Issued | 05/15/2020 |
License & disciplinary context - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Marc Johnson, DMD. To verify Marc Johnson, DMD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas 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.
139
Total Claims
$521
Total Drug Cost
68
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 139
- Total Day Supply
- 786
- Brand Drug Cost
- $0
- Generic Drug Cost
- $521
- Opioid Claims
- 47 (33.8% rate)
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 65.8 years
- Avg HCC Risk Score
- 1.28
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 19, 65-74: 34, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marc Johnson, DMD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Acetaminophen-Code…
Acetaminophen-Codeine
39 claims
- Amoxicillin
Amoxicillin
39 claims
- Ibuprofen
Ibuprofen
36 claims
| Drug | Claims |
|---|---|
| Acetaminophen-Codeine Acetaminophen With Codeine | 39 |
| Amoxicillin | 39 |
| Ibuprofen | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dentist Overview
How Marc Johnson, DMD fits within the Dentist landscape nationally.
93,793
Dentist Providers in US
56
States with Dentist
87
Avg Claims per Provider
Marc Johnson, DMD's 139 claims are above the specialty average of 87.
Nearby Dentist Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Johnson.
Nawal Aamir
San Antonio, TX
Dr. Kyle Aaron
D,D,S,
League City, TX
Dr. Seyedeh Abaei
DDS
Dallas, TX
Dr. Chinwendu Abakwue
DDS
Missouri City, TX
Dr. Edmundo Abasolo
DDS
Houston, TX
Compare 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
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Explore Texas
Frequently Asked Questions
What is Marc Johnson, DMD's specialty? ▼
Marc Johnson, DMD specializes in Dentist and practices in Robinson, Texas. Credentials: DMD.
How much does Marc Johnson, DMD prescribe under Medicare Part D? ▼
In 2023, Marc Johnson, DMD wrote 139 Medicare Part D claims totaling $521 in drug costs for 68 beneficiaries.
Where is Marc Johnson, DMD located? ▼
Marc Johnson, DMD is located at 421 N ROBINSON DR, Robinson, TX, 76706. Phone: (254) 662-3306.
What is Marc Johnson, DMD's NPI number? ▼
Marc Johnson, DMD's National Provider Identifier (NPI) is 1609498385, issued on 05/15/2020.
Does Marc Johnson, DMD prescribe opioids? ▼
Yes, Marc Johnson, DMD had 47 opioid claims in 2023 with an opioid prescribing rate of 33.8%.
How many Dentist providers are there in the US? ▼
There are 93,793 Dentist providers across 56 states in the US. The average Dentist provider writes 87 Medicare Part D claims per year.
What drugs does Marc Johnson, DMD prescribe most often? ▼
Based on 2023 Medicare Part D data, Marc Johnson, DMD's most frequently prescribed drugs include Acetaminophen-Codeine, Amoxicillin, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marc Johnson, DMD accept Medicare? ▼
Marc Johnson, DMD appears in CMS Medicare data with 139 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marc Johnson, DMD's credentials? ▼
Marc Johnson, DMD's NPI is 1609498385 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
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.