Physician Profile
Douglas Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Douglas Chang, M.D. practices neurology in Foothill Ranch, CA. Douglas is a 1976 graduate of University of California, Geffen School of Medicine. Medicare claims data shows Douglas provided 239 services to 150 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and measurement of brain wave activity (eeg), awake and drowsy.
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
- (949) 600-7887
- Email not available
Practice Locations
26730 TOWNE CENTRE DR SUITE 202
Foothill Ranch, CA 92610
Conditions Commonly Evaluated or Treated
Within Neurology 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
- Alzheimer's disease
- Epilepsy
- Migraines
- Multiple sclerosis
- Neuropathy
- Parkinson's disease
Headache and facial pain
- Tension headaches
- Trigeminal neuralgia
Memory and cognition
- Mild cognitive impairment
Movement disorders
- Essential tremor
- Huntington's disease
- Restless legs syndrome
Neuromuscular and peripheral nerve
- Amyotrophic lateral sclerosis
- Carpal tunnel
- Diabetic neuropathy
- Guillain-Barré syndrome
- Muscular dystrophy
- Myasthenia gravis
Seizures and epilepsy
- Functional seizures
Stroke and vascular
- Brain aneurysm
- Transient ischemic attack
Brain & Spine
- Severe back pain
Brain tumors
- Brain Tumor Symptoms
Head & Facial Pain
- Cluster Headaches
Memory & Cognitive
- Normal Pressure Hydrocephalus
Movement Disorders
- Balance Problems and Ataxia
- Stiff neck
- Stiff Person Syndrome
- Tourette Syndrome and Tics
Nerve Compression
- Sciatica
Sleep & Movement
- Narcolepsy
Spine and nerve
- Cervical radiculopathy
Spine, brain injury, and functional
- Bell's palsy
- Concussion
Procedures & services
Most searched procedures
- Botox for migraines
- EEG
- EMG
- Nerve block
- Sleep study
Consultation and testing
- Ambulatory EEG
- Evoked-potential testing
- Nerve-conduction studies
Consultations & Exams
- Neurological Second Opinion
- Spasticity Assessment and Treatment
- Stroke Risk Evaluation
Consultations and exams
- Neurological Exam and Consultation
Device management
- Deep Brain Stimulation Adjustment
- Responsive Neurostimulator Programming
Diagnostic Testing
- Cognitive and memory screening
- Genetic Testing for Neurological Disorders
- Neuromuscular Ultrasound
- Neuropsychological Testing
- Normal Pressure Hydrocephalus Tap Test
- Tilt Table Test
Infusion and medical therapies
- Neurology Infusion Therapy
Infusions & Therapies
- IVIG Infusion Therapy
- Migraine Preventive Injections and Infusions
- MS Disease-Modifying Infusion Therapy
- Plasmapheresis
Injections & Pain Relief
- Botox Injections for Excessive Drooling
- Botox Injections for Muscle Spasms and Dystonia
- Trigger Point Injections
Medication Management
- Seizure Medication Management
Neuromodulation
- Baclofen Pump Programming and Refills
- Vagus nerve stimulation management
Office procedures
- Lumbar puncture
- Occipital nerve block
Trauma & Injury
- Concussion Evaluation and Baseline Testing
- Concussion Return-to-Play Clearance
Procedures Most Often Billed to Medicare
239 services · 150 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Measurement of brain wave activity (eeg), awake and drowsy | Treatment | 95816 |
45 | As often as other peers in Neurology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
130 | More often than most peers in Neurology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
53 | More often than most peers in Neurology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
11 | Less often than most peers in Neurology |
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.
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.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1976 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Measurement of brain wave activity (eeg), awake and drowsy 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Douglas Chang specialize in?
Douglas Chang is a neurologist in Foothill Ranch, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Where is Douglas Chang located?
Douglas Chang is listed at 26730 Towne Centre Dr Suite 202, Foothill Ranch, CA 92610. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Douglas Chang's phone number?
The number on file is (949) 600-7887. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Douglas Chang?
Douglas Chang's National Provider Identifier is 1295766889. 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
Where did Douglas Chang train?
Douglas Chang attended University of California, Geffen School of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Douglas Chang have?
Douglas Chang has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Douglas Chang do most often?
According to Medicare billing data, Douglas Chang provides treatments such as measurement of brain wave activity , awake and drowsy, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Douglas Chang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Douglas Chang. 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.