Physician Profile
Junjie Liu, M.D. PH.D.
Unclaimed ProfileAbout Dr. Liu
Based in Iowa City, IA, Junjie Liu, M.D. PH.D. is listed in the NPI registry under sleep medicine. Junjie graduated from Geisel School of Medicine at Dartmouth in 2015. Junjie is also listed as specializing in internal medicine. Medicare claims data shows Junjie provided 521 services to 511 patients. The services billed most often include sleep study including heart rate, breathing, and sleep time, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (319) 356-2571
- Email not available
Practice Locations
200 HAWKINS DR
Iowa City, IA 52242
Conditions Commonly Evaluated or Treated
Within Sleep 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.
Conditions
Most searched conditions
- Insomnia
- Narcolepsy
- Restless legs syndrome
- Sleep apnea
- Snoring
Breathing disruption
- Shallow Breathing In Sleep
- Suffocation Feelings In Bed
- Waking Up Gasping Or Choking
Circadian rhythm
- Antisocial personality disorder
- Delayed Sleep Phase
- Irregular Sleep-Wake Schedule
- Jet Lag Disorder
- Non-24-Hour Body Clock
- Shift Work Sleep Problems
- Sleep problems
Daytime alertness
- Daytime Exhaustion
- Excessive daytime sleepiness
- Excessive Sleeping
- Sleep Grogginess
- Sudden Muscle Weakness When Laughing
Excessive sleepiness
- Sleeping Beauty Syndrome
General sleep
- Hot flashes
- Nighttime Acid Reflux
- Pregnancy Sleep Problems
General symptoms
- Waking Up With Headaches
Hormonal sleep
- Menopause Sleep Problems
Insomnia & anxiety
- Sleep Anxiety
Movement disorders
- Head Banging While Sleeping
- Restless Arm Syndrome
Neurological sleep
- Nighttime Seizures
Parasomnia
- Acting Out Dreams
- Bedwetting
- Chronic Nightmares
- Exploding Head Syndrome
- Hallucinations While Falling Asleep
- Sleep Eating
- Sleep Groaning
- Sleep Paralysis
- Sleep Problems in Kids
- Sleep Talking
- Sleepwalking
Parasomnias
- Sexsomnia
Pediatric sleep
- Child Sleep Problems
Sleep breathing
- Mouth Breathing While Sleeping
- Upper Airway Resistance Syndrome
Sleep disruption
Sleep movement
- Nighttime Leg Kicking
- Sleep Twitches
- Teeth Grinding In Sleep
Sleep quality
- Restless Sleep
- Waking Up In Panic
Sleep timing
- Waking Up Too Early
Procedures & services
Most searched procedures
- CPAP titration
- Home sleep test
- Sleep study
Behavioral therapy
- Child Sleep Habit Coaching
- CPAP Desensitization Therapy
- Sleep counseling
- Sleep hygiene counseling
- Sleep Restriction Therapy
- Stimulus Control Therapy
Circadian therapy
- Light Box Therapy
- Melatonin Timing Protocol
Consultation
- CPAP Alternatives Consultation
- Sleep Choking And Acid Reflux Management
CPAP & positive airway pressure
- Adaptive Servo-Ventilation Setup
- Auto-CPAP Setup
- BiPAP therapy
- CPAP Heated Tubing & Humidifier Setup
- CPAP Mask Fitting
- CPAP Pressure Adjustment
Device management
- Central Sleep Apnea Pacemaker Setup
- Inspire Therapy Programming
Devices
- Nasal Dilator Fitting For Snoring
- Nasal Expiratory Valve Fitting
Diagnostic testing
- Daytime Nap Study
- Drug-induced sleep endoscopy
- Overnight Oxygen Tracking
- Sleep Alertness Test
- Sleep Tracker Watch Monitoring
Diagnostics
- Actigraphy Sleep Tracking
- Nasal Airflow Testing
- Overnight Brain Wave Monitoring
Evaluations
- DOT Sleep Apnea Clearance
- Pediatric Sleep Apnea Evaluation
Lifestyle & devices
- Positional Sleep Therapy
Medical management
- Sleep Medication Review & Tapering
Oral appliances
- Night Guard For Clenching
- Oral Appliance Adjustment
- Sleep Apnea Mouthpiece
- Snoring Mouth Guard Fitting
Respiratory care
- Nighttime Oxygen Therapy Setup
- Non-Invasive Ventilation Setup
Snoring & airway
- Laser Snoring Treatment
- Radiofrequency Tissue Reduction For Snoring
Surgery
- Tonsil And Adenoid Removal For Sleep Apnea
Surgical & implants
- Deviated Septum Surgery For Sleep
- Expansion Sphincter Pharyngoplasty
- Hypoglossal nerve stimulator implantation
- Jaw Advancement Surgery
- Palate Stiffening Procedure
- Tongue Base Reduction Surgery
- Turbinate Shrinking For Breathing
- Uvulopalatopharyngoplasty
Therapy
- Myofunctional Therapy for Tongue Thrust
- Sleep Dread Desensitization
Procedures Most Often Billed to Medicare
521 services · 511 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Sleep study including heart rate, breathing, and sleep time | Treatment | 95800 |
177 | More often than most peers in Sleep Medicine |
| Sleep study in sleep lab (6 years or older) | Treatment | 95810 |
61 | More often than most peers in Sleep Medicine |
| Sleep study in sleep lab with continuous airway pressure (6 years or older) | Treatment | 95811 |
54 | As often as other peers in Sleep Medicine |
| Sleep study including heart rate, breathing, airflow, and effort | Treatment | 95806 |
16 | Less often than most peers in Sleep Medicine |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
65 | More often than most peers in Sleep Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
63 | As often as other peers in Sleep Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
52 | Less often than most peers in Sleep Medicine |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
17 | Less often than most peers in Sleep Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
16 | Less often than most peers in Sleep Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 16 related providers in 3 groups
Trained at Geisel School of Medicine at Dartmouth 1
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Geisel School of Medicine at Dartmouth 8
Providers who graduated from the same medical school in the same year.
Also performs Sleep study including heart rate, breathing, and sleep time 7
Providers in IA who bill this service to Medicare most often.
Common questions
What is Junjie Liu's specialty?
Junjie Liu is a sleep medicine in Iowa City, IA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Junjie Liu?
Junjie Liu is listed at 200 Hawkins Dr, Iowa City, IA 52242. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Junjie Liu?
The number on file is (319) 356-2571. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Junjie Liu?
Junjie Liu's National Provider Identifier is 1619356383. 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
What is Junjie Liu's education?
Junjie Liu attended Geisel School of Medicine at Dartmouth, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Junjie Liu have?
Junjie Liu has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What is Junjie Liu known for?
According to Medicare billing data, Junjie Liu provides treatments such as sleep study including heart rate, breathing, and sleep time and sleep study in sleep lab, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Junjie Liu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Junjie Liu. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.