NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1619021045 M.D.
Verify on CMS → David Semar, M.D.
Psychiatry Physician in Saddle River, 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 53,171 in Psychiatry Physician, 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
454
Medicare Part D claims · 37 beneficiaries · Psychiatry Physician avg: 1K
What the federal data shows
David Semar, M.D. filed 454 Medicare Part D claims in 2023 as a Psychiatry Physician in Saddle River, New Jersey.
- 454
- 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.
David Semar, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
454 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
◑
Board-eligible specialty (heuristic, not verified)
David Semar, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about David Semar, M.D.?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
454 56% vs specialty avg
Specialty distribution in New Jersey
How Psychiatry Physician 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 Psychiatry Physician. 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).
David Semar, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 148 W SADDLE RIVER RD, Saddle River, NJ, 07458, with a listed phone of (201) 694-1543. NPI 1619021045 was issued on 01/23/2007.
Medicare Part D records for calendar year 2023 show 454 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $14K in drug spend.
Psychiatry Physician is a high-volume specialty nationwide, with 53,171 enrolled providers across 56 states and an average of 1,038 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 | 1619021045 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/23/2007 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
454
Total Claims
$14K
Total Drug Cost
37
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 666
- Total Day Supply
- 19,198
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Semar, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clonazepam
Clonazepam
81 claims
- Alprazolam
Alprazolam
76 claims
- Escitalopram Oxalate
Escitalopram Oxalate
39 claims
- Lorazepam
Lorazepam
35 claims
- Zolpidem Tartrate 32
Zolpidem Tartrate
32 claims
- Trazodone Hcl 27
Trazodone Hcl
27 claims
- Sertraline Hcl 20
Sertraline Hcl
20 claims
- Fluoxetine Hcl 16
Fluoxetine Hcl
16 claims
| Drug | Claims |
|---|---|
| Clonazepam | 81 |
| Alprazolam | 76 |
| Escitalopram Oxalate | 39 |
| Lorazepam | 35 |
| Zolpidem Tartrate | 32 |
| Trazodone Hcl | 27 |
| Sertraline Hcl | 20 |
| Fluoxetine Hcl | 16 |
| Quetiapine Fumarate | 16 |
| Lamotrigine | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How David Semar, M.D. fits within the Psychiatry Physician landscape nationally.
53,171
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider
David Semar, M.D.'s 454 claims are below the specialty average of 1,038.
Nearby Psychiatry Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Semar.
Dr. M Adeel Abbasi
MD
Newton, NJ
Dr. Maribel Abbate
M.D.
Madison, NJ
Dr. Frank Abenante
M.D.
Manahawkin, NJ
Dr. Ruby Abraham
MD
Cranford, NJ
Dr. Samar Abrar
MD
Tenafly, NJ
Compare Psychiatry Physician 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 Psychiatry Physician 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
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Frequently Asked Questions
What is David Semar, M.D.'s specialty? ▼
David Semar, M.D. specializes in Psychiatry Physician and practices in Saddle River, New Jersey. Credentials: M.D..
How much does David Semar, M.D. prescribe under Medicare Part D? ▼
In 2023, David Semar, M.D. wrote 454 Medicare Part D claims totaling $14K in drug costs for 37 beneficiaries.
Where is David Semar, M.D. located? ▼
David Semar, M.D. is located at 148 W SADDLE RIVER RD, Saddle River, NJ, 07458. Phone: (201) 694-1543.
What is David Semar, M.D.'s NPI number? ▼
David Semar, M.D.'s National Provider Identifier (NPI) is 1619021045, issued on 01/23/2007.
How many Psychiatry Physician providers are there in the US? ▼
There are 53,171 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does David Semar, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, David Semar, M.D.'s most frequently prescribed drugs include Clonazepam, Alprazolam, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Semar, M.D. accept Medicare? ▼
David Semar, M.D. appears in CMS Medicare data with 454 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Semar, M.D.'s credentials? ▼
David Semar, M.D.'s NPI is 1619021045 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
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.