2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1326477993 MD
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STEPHEN MERJAVY, MD

Student in an Organized Health Care Education/Training Program in MARTINEZ, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 reported

NPI registry status

Active

Issued 11/05/2013

NPI 1326477993

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

420 8% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in California

How Student in an Organized Health Care Education/Training Program compares to other specialties among California providers

California providers

Student in an Organized Health Care Education/Training Program share within California

1. Student in an Organized Health Care Education/Training Program42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Student in an Organized Health Care Education/Training Program share within California

Specialty board-certification context

Estimated specialty board-certified rate — Student in an Organized Health Care Education/Training Program (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Student in an Organized Health Care Education/Training Program ABMS/AOA estimate

Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MERJAVY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 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

2500 ALHAMBRA AVE
MARTINEZ, CA 94553

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

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.

331,761
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.

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

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 331,761 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

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