NPI registry status
Active
2026 NPPES data Legal Medicine NPI 1043432925 M.D.
Verify on CMS → Mark Bartiss, M.D.
Legal Medicine in Manahawkin, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,065 in Legal Medicine, 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 · 188 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
88%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Bartiss, M.D. filed 1,167 Medicare Part D claims in 2023 as a Legal Medicine in Manahawkin, New Jersey, prescribing 88% generic.
- 1K
- Part D claims, 2023
- 88%
- generic prescribing
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 Bartiss, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,167 Top 23% higher than 77% 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 Mark Bartiss, M.D.?
Quality data not reportedPrimary specialty
Legal Medicine
Medicare Part D claims
1,167 59% vs specialty avg
Specialty distribution in New Jersey
How Legal Medicine compares to other specialties among New Jersey 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 Legal Medicine. 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 Bartiss, M.D. appears in the CMS NPPES registry as a Legal Medicine provider holding M.D. credentials at 24 NAUTILUS DR STE 5, Manahawkin, NJ, 08050, with a listed phone of (609) 978-9002. NPI 1043432925 was issued on 05/02/2007.
Medicare Part D records for calendar year 2023 show 1,167 prescription claims written by this provider, covering 188 Medicare beneficiaries and totaling roughly $63K in drug spend, split 7% brand-name and 88% generic by claim count, with an opioid prescribing rate of 2.1%.
Legal Medicine is a narrow specialty nationwide, with 1,065 enrolled providers across 51 states and an average of 2,821 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 | 1043432925 |
|---|---|
| Specialty | Legal Medicine |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/02/2007 |
Brand vs generic prescribing mix · Generic-heavy
Mark Bartiss, M.D. - brand share 7.0%
Legal Medicine average
7% brand-name claims vs 88% generic, on 1,167 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,167
Total Claims
$63K
Total Drug Cost
188
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,599
- Total Day Supply
- 77,063
- Brand vs Generic
- 7% brand / 88% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $44K
- Opioid Claims
- 25 (2.1% rate)
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 0.82
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 13, 65-74: 121, 75-84: 42, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Bartiss, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
174 claims
- Anastrozole
Anastrozole
127 claims
- Testosterone Cypio…
Testosterone Cypionate
107 claims
- Liothyronine Sodium 44
Liothyronine Sodium
44 claims
- Gabapentin 38
Gabapentin
38 claims
- Alprazolam 32
Alprazolam
32 claims
- Dextroamphetamine-… 18
Dextroamphetamine-Amphetamine
18 claims
- Oxycodone-Acetamin… 16
Oxycodone-Acetaminophen
16 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 174 |
| Anastrozole | 127 |
| Testosterone Cypionate | 107 |
| Liothyronine Sodium | 44 |
| Gabapentin | 38 |
| Alprazolam | 32 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 18 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 16 |
| Lamotrigine Er Lamotrigine | 15 |
| Metformin Hcl Er Metformin Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Legal Medicine Overview
How Mark Bartiss, M.D. fits within the Legal Medicine landscape nationally.
1,065
Legal Medicine Providers in US
51
States with Legal Medicine
2,821
Avg Claims per Provider
Mark Bartiss, M.D.'s 1,167 claims are below the specialty average of 2,821.
Nearby Legal Medicine Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Bartiss.
Dr. Adel Amer
M.D
Sicklerville, NJ
Dr. Paul Arias
MD
Newark, NJ
Dr. Ammar Bazerbashi
MD
Holmdel, NJ
Dr. Stacey Blackman
APN
East Orange, NJ
Dr. Robert Bock
M.D.
Newfoundland, NJ
Compare Legal Medicine 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 New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Legal Medicine 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.
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Frequently Asked Questions
What is Mark Bartiss, M.D.'s specialty? ▼
Mark Bartiss, M.D. specializes in Legal Medicine and practices in Manahawkin, New Jersey. Credentials: M.D..
How much does Mark Bartiss, M.D. prescribe under Medicare Part D? ▼
In 2023, Mark Bartiss, M.D. wrote 1,167 Medicare Part D claims totaling $63K in drug costs for 188 beneficiaries.
Where is Mark Bartiss, M.D. located? ▼
Mark Bartiss, M.D. is located at 24 NAUTILUS DR STE 5, Manahawkin, NJ, 08050. Phone: (609) 978-9002.
What is Mark Bartiss, M.D.'s NPI number? ▼
Mark Bartiss, M.D.'s National Provider Identifier (NPI) is 1043432925, issued on 05/02/2007.
Does Mark Bartiss, M.D. prescribe more brand-name or generic drugs? ▼
Mark Bartiss, M.D.'s prescribing is 7% brand-name and 88% generic drugs by claim count, with $12K in brand drug costs.
Does Mark Bartiss, M.D. prescribe opioids? ▼
Yes, Mark Bartiss, M.D. had 25 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Legal Medicine providers are there in the US? ▼
There are 1,065 Legal Medicine providers across 51 states in the US. The average Legal Medicine provider writes 2,821 Medicare Part D claims per year.
What drugs does Mark Bartiss, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Bartiss, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Anastrozole, Testosterone Cypionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Bartiss, M.D. accept Medicare? ▼
Mark Bartiss, M.D. appears in CMS Medicare data with 1,167 Part D claims and 188 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Bartiss, M.D.'s credentials? ▼
Mark Bartiss, M.D.'s NPI is 1043432925 with credentials M.D.. 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.