Are you Mark H. Joyner, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileBased in San Pedro, CA, Mark H. Joyner, M.D. is listed in the NPI registry under emergency medicine. According to Medicare claims data, Mark cared for 230 Medicare patients across 241 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, emergency department visit with high level of medical decision making, and x-ray of chest, 1 view. NPI 1164460572 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1300 W 7TH ST EMERGENCY DEPARTMENT
San Pedro, CA 90732
Within Emergency Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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241 services · 230 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
23 | As often as other peers in Emergency Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
98 | As often as other peers in Emergency Medicine |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
89 | As often as other peers in Emergency Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
18 | Less often than most peers in Emergency Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
13 | Less often than most peers in Emergency Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Mark H. Joyner is an emergency physician in San Pedro, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Mark H. Joyner is listed at 1300 W 7Th St Emergency Department, San Pedro, CA 90732. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (310) 514-5350. Contact the office directly to confirm availability and scheduling.
NPI registry
Mark H. Joyner's National Provider Identifier is 1164460572. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Mark H. Joyner has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Mark H. Joyner performs imaging including x-ray of chest, 1 view; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Mark H. Joyner. If this is you, claiming it is free.
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