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Edit this profileChristopher L. John, MD is a healthcare provider in Little Rock, AR specializing in critical care medicine. Christopher is also listed as specializing in internal medicine. Medicare claims data shows Christopher provided 4,065 services to 2,159 patients. The services billed most often include methacholine chloride administered as inhalation solution through a nebulizer, per 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and test to measure expiratory airflow and volume changes before and after medication administration. This provider record is associated with NPI 1619974599.
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.
11321 INTERSTATE 30 STE 306
Little Rock, AR 72209
Within Critical Care 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.
Blood & metabolism
Brain & nerve
Brain & Nervous System
Breathing & Lungs
Digestive emergencies
Environmental emergencies
Heart & Circulation
Heart & vascular
Infection & Sepsis
Infections
Injury & trauma
Lung & breathing
Medication reactions
Metabolic Emergencies
Muscle & kidney
Organ Failure
Pregnancy emergencies
Recovery
Substance emergencies
Toxicity & Trauma
Airway & Breathing
Airway procedures
Brain procedures
Breathing support
Consultation & Recovery
Digestive procedures
Emergency surgery
Fluid Drainage
Heart procedures
Heart support
ICU recovery
Lab tests & monitoring
Life Support
Medication therapies
Medications & Infusions
Monitoring
Nutrition & Digestion
Nutrition support
Organ Support
Vascular Access
4,065 services · 2,159 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
205 | More than most peers in Critical Care Medicine |
| X-ray of paranasal sinus, 1-2 views | Imaging | 70210 |
11 | Too few peers to compare |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
703 | More than most peers in Critical Care Medicine |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
365 | More than most peers in Critical Care Medicine |
| Test to determine lung volumes using sensors | Treatment | 94726 |
322 | More than most peers in Critical Care Medicine |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
89 | More often than most peers in Critical Care Medicine |
| Test for exercise-induced heart and lung stress | Treatment | 94621 |
45 | More than most peers in Critical Care Medicine |
| Test for exercise-induced lung stress | Treatment | 94618 |
23 | As often as other peers in Critical Care Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
21 | Less often than most peers in Critical Care Medicine |
| Test to measure lung airway sensitivity | Treatment | 94070 |
11 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. John is a critical care physician in Little Rock, AR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Critical Care Medicine”.
NPI registry
Dr. John is listed at 11321 Interstate 30 Ste 306, Little Rock, AR 72209. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (501) 407-0200. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. John's National Provider Identifier is 1619974599. 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
Dr. John attended Other, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
Dr. John has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. John performs imaging including x-ray of chest, 2 views and x-ray of paranasal sinus, 1-2 views; provides treatments such as test to measure expiratory airflow and volume changes before and after medication administration and test to examine how well the lungs exchange gases, 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 Dr. John. If this is you, claiming it is free.
Guide.md
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