NPI registry status
Active
2026 NPPES data Sports Medicine (Emergency Medicine) Physician NPI 1871517953 MD
Verify on CMS → John Plosay, MD
Sports Medicine (Emergency Medicine) Physician in El Segundo, 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 315 in Sports Medicine (Emergency Medicine) 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
597
Medicare Part D claims · 359 beneficiaries · Sports Medicine (Emergency Medicine) Physician avg: 270
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Plosay, MD filed 597 Medicare Part D claims in 2023 as a Sports Medicine (Emergency Medicine) Physician in El Segundo, California.
- 597
- 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.
John Plosay, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
597 Top 34% higher than 66% 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)
John Plosay, MD 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 John Plosay, MD?
Quality data not reportedPrimary specialty
Sports Medicine (Emergency Medicine) Physician
Medicare Part D claims
597 121% vs specialty avg
Specialty distribution in California
How Sports Medicine (Emergency Medicine) Physician 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 Sports Medicine (Emergency Medicine) 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).
John Plosay, MD appears in the CMS NPPES registry as a Sports Medicine (Emergency Medicine) Physician provider holding MD credentials at 1700 E WALNUT AVE, El Segundo, CA, 90245, with a listed phone of (800) 882-9212. NPI 1871517953 was issued on 07/26/2006.
Medicare Part D records for calendar year 2023 show 597 prescription claims written by this provider, covering 359 Medicare beneficiaries and totaling roughly $9K in drug spend, with an opioid prescribing rate of 5.5%.
Sports Medicine (Emergency Medicine) Physician is a narrow specialty nationwide, with 315 enrolled providers across 44 states and an average of 270 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 | 1871517953 |
|---|---|
| Specialty | Sports Medicine (Emergency Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/26/2006 |
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 John Plosay, MD. To verify John Plosay, 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.
597
Total Claims
$9K
Total Drug Cost
359
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 598
- Total Day Supply
- 5,613
- Generic Drug Cost
- $6K
- Opioid Claims
- 33 (5.5% rate)
- Antibiotic Claims
- 140
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 2.25
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 52, 65-74: 138, 75-84: 119, 85+: 50
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Plosay, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diclofenac Sodium
Diclofenac Sodium
129 claims
- Cephalexin
Cephalexin
53 claims
- Pantoprazole Sodium 39
Pantoprazole Sodium
39 claims
- Sucralfate 39
Sucralfate
39 claims
- Ondansetron Odt 35
Ondansetron Odt
35 claims
- Methylprednisolone 31
Methylprednisolone
31 claims
- Tramadol Hcl 24
Tramadol Hcl
24 claims
- Amoxicillin-Clavul… 21
Amoxicillin-Clavulanate Potass
21 claims
| Drug | Claims |
|---|---|
| Diclofenac Sodium | 129 |
| Cephalexin | 53 |
| Pantoprazole Sodium | 39 |
| Sucralfate | 39 |
| Ondansetron Odt Ondansetron | 35 |
| Methylprednisolone | 31 |
| Tramadol Hcl | 24 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 21 |
| Metoclopramide Hcl | 19 |
| Sulindac | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sports Medicine (Emergency Medicine) Physician in CA →
All providers in California →
Compare specialties →
Sports Medicine (Emergency Medicine) Physician Overview
How John Plosay, MD fits within the Sports Medicine (Emergency Medicine) Physician landscape nationally.
315
Sports Medicine (Emergency Medicine) Physician Providers in US
44
States with Sports Medicine (Emergency Medicine) Physician
270
Avg Claims per Provider
John Plosay, MD's 597 claims are above the specialty average of 270.
Nearby Sports Medicine (Emergency Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Plosay.
Dr. Trevor Addison
ATC
Fremont, CA
Dr. Roy Akarakian
MD
Los Angeles, CA
Jeremy Alvarez
Santa Barbara, CA
Dr. Sergio Alvarez
MD
Mountain View, CA
Dr. Consuelo Anaya
MS, ATC
La Jolla, CA
Compare Sports Medicine (Emergency Medicine) 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Sports Medicine (Emergency Medicine) 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.
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Frequently Asked Questions
What is John Plosay, MD's specialty? ▼
John Plosay, MD specializes in Sports Medicine (Emergency Medicine) Physician and practices in El Segundo, California. Credentials: MD.
How much does John Plosay, MD prescribe under Medicare Part D? ▼
In 2023, John Plosay, MD wrote 597 Medicare Part D claims totaling $9K in drug costs for 359 beneficiaries.
Where is John Plosay, MD located? ▼
John Plosay, MD is located at 1700 E WALNUT AVE, El Segundo, CA, 90245. Phone: (800) 882-9212.
What is John Plosay, MD's NPI number? ▼
John Plosay, MD's National Provider Identifier (NPI) is 1871517953, issued on 07/26/2006.
Does John Plosay, MD prescribe opioids? ▼
Yes, John Plosay, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 5.5%.
How many Sports Medicine (Emergency Medicine) Physician providers are there in the US? ▼
There are 315 Sports Medicine (Emergency Medicine) Physician providers across 44 states in the US. The average Sports Medicine (Emergency Medicine) Physician provider writes 270 Medicare Part D claims per year.
What drugs does John Plosay, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Plosay, MD's most frequently prescribed drugs include Diclofenac Sodium, Cephalexin, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Plosay, MD accept Medicare? ▼
John Plosay, MD appears in CMS Medicare data with 597 Part D claims and 359 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Plosay, MD's credentials? ▼
John Plosay, MD's NPI is 1871517953 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
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.