NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1326477993 MD
Verify on CMS → Stephen Merjavy, MD
Student in an Organized Health Care Education/Training Program in Martinez, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 331,274 in Student in an Organized Health Care Education/Training Program, 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
420
Medicare Part D claims · 43 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
What the federal data shows
Stephen Merjavy, MD filed 420 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in Martinez, California.
- 420
- 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.
Stephen Merjavy, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
420 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 Stephen Merjavy, MD?
Quality data not reportedPrimary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
420 8% vs specialty avg
Specialty distribution in California
How Student in an Organized Health Care Education/Training Program compares to other specialties among California 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 Student in an Organized Health Care Education/Training Program. 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).
Stephen Merjavy, MD appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD credentials at 2500 ALHAMBRA AVE, Martinez, CA, 94553, with a listed phone of (925) 370-5000. NPI 1326477993 was issued on 11/05/2013.
Medicare Part D records for calendar year 2023 show 420 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $292K in drug spend, with an opioid prescribing rate of 4.0%.
Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,274 enrolled providers across 55 states and an average of 459 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 | 1326477993 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/05/2013 |
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Stephen Merjavy, MD. To verify Stephen Merjavy, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California 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.
420
Total Claims
$292K
Total Drug Cost
43
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 466
- Total Day Supply
- 12,789
- Generic Drug Cost
- $13K
- Opioid Claims
- 17 (4.0% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 67.7 years
- Avg HCC Risk Score
- 2.38
- Gender Split
- 28% female / 72% male
- Age Distribution
- <65: 13, 65-74: 20, 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 Stephen Merjavy, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Juluca
Juluca
27 claims
- Atorvastatin Calcium
Atorvastatin Calcium
25 claims
- Ventolin Hfa
Ventolin Hfa
25 claims
- Tivicay
Tivicay
15 claims
- Emtricitabine
Emtricitabine
14 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
14 claims
- Lamivudine Hbv
Lamivudine Hbv
13 claims
- Benazepril Hcl
Benazepril Hcl
12 claims
| Drug | Claims |
|---|---|
| Juluca Dolutegravir/Rilpivirine | 27 |
| Atorvastatin Calcium | 25 |
| Ventolin Hfa Albuterol Sulfate | 25 |
| Tivicay Dolutegravir Sodium | 15 |
| Emtricitabine | 14 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 14 |
| Lamivudine Hbv Lamivudine | 13 |
| Benazepril Hcl | 12 |
| Triumeq Abacavir/Dolutegravir/Lamivudi | 12 |
| Clonazepam | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in CA →
All providers in California →
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Student in an Organized Health Care Education/Training Program Overview
How Stephen Merjavy, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
331,274
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider
Stephen Merjavy, MD's 420 claims are below the specialty average of 459.
Nearby Student in an Organized Health Care Education/Training Program Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Merjavy.
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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Student in an Organized Health Care Education/Training Program 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 Stephen Merjavy, MD's specialty? ▼
Stephen Merjavy, MD specializes in Student in an Organized Health Care Education/Training Program and practices in Martinez, California. Credentials: MD.
How much does Stephen Merjavy, MD prescribe under Medicare Part D? ▼
In 2023, Stephen Merjavy, MD wrote 420 Medicare Part D claims totaling $292K in drug costs for 43 beneficiaries.
Where is Stephen Merjavy, MD located? ▼
Stephen Merjavy, MD is located at 2500 ALHAMBRA AVE, Martinez, CA, 94553. Phone: (925) 370-5000.
What is Stephen Merjavy, MD's NPI number? ▼
Stephen Merjavy, MD's National Provider Identifier (NPI) is 1326477993, issued on 11/05/2013.
Does Stephen Merjavy, MD prescribe opioids? ▼
Yes, Stephen Merjavy, MD had 17 opioid claims in 2023 with an opioid prescribing rate of 4.0%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 331,274 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does Stephen Merjavy, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Stephen Merjavy, MD's most frequently prescribed drugs include Juluca, Atorvastatin Calcium, Ventolin Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Merjavy, MD accept Medicare? ▼
Stephen Merjavy, MD appears in CMS Medicare data with 420 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Merjavy, MD's credentials? ▼
Stephen Merjavy, MD's NPI is 1326477993 with credentials MD. 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.