Provider Profile
Ruey J. Chang, P.A.
Unclaimed ProfileAbout Ruey Chang
Ruey J. Chang, P.A. is a physician assistant — medical based in La Palma, CA. According to Medicare claims data, Ruey cared for 443 Medicare patients across 3,495 services. The services billed most often include hyaluronan or derivative, triluron, for intra-articular injection, 1 mg, injection, denosumab, 1 mg, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 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 — free, and no identity document with a practice or institutional email.
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
- (714) 670-1340
- Email not available
Practice Locations
5451 LA PALMA AVE SUITE 25
La Palma, CA 90623
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Medical 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
- Common cold
- Diabetes
- Flu
- High blood pressure
- Sinus infection
- UTI
Allergies
- Hives
- Seasonal allergies
Blood
- Iron-deficiency anemia
Bone and joint
- Osteoporosis
- Tendinitis and tendinopathy
Digestive
- Acid reflux
- IBS
- Stomach Bug and Food Poisoning
Digestive health
- Constipation
- Fatty liver disease
- Hemorrhoids
Ear, Nose & Throat
- Ear infection
Endocrine
- Hypothyroidism
Eye Care
- Pink eye
Foot and ankle
- Foot fungus
- Heel pain
General Health
- Chronic fatigue
Hair and scalp
- Hair loss
Headache and brain
- Tension headaches
Heart & Circulation
- High cholesterol
Hormones
- Perimenopause
- Testosterone deficiency
Infections
- Cellulitis
- COVID-19
- Herpes simplex of the skin
- Ringworm
- Strep throat
Injury
- Sprains and muscle strains
Men's Health
- Erectile dysfunction
Mental Health
- Anxiety
- Depression
Metabolic
- Obesity
Nerve conditions
- Carpal tunnel
- Sciatica
Neurology
- Dizziness and vertigo
- Migraines
Pain
- Gout
- Low back pain
- Osteoarthritis
- Whiplash
Respiratory
- Acute bronchitis
- Asthma
- Community-acquired pneumonia
Sexual Health
- Sexually transmitted infections
Skin
- Acne
- Eczema
- Psoriasis
- Shingles
Skin cancer
- Precancerous sun spot
Skin conditions
- Rosacea
Sleep
- Insomnia and Sleep Problems
Women's Health
- Yeast infection
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Allergies
- Allergy Testing and Shots
Counseling
- Smoking cessation counseling
Dermatology
- Cryotherapy for skin lesions
- Skin biopsy
- Skin Tag Removal
Diagnostic Tests
- COVID-19 Rapid Test
- Mono Rapid Test
- Rapid Flu Swab
- Rapid strep testing
- TB Skin Test
- Urine Drug Screen
- Urine Pregnancy Test
Ear, Nose & Throat
- Earwax removal
- Removal of Foreign Object from Ear or Nose
Evaluations
- Pre-Op Clearance Exam
Exams
- DOT Physical Exam
- Medicare annual wellness visit
- Pre-Employment Physical
- School and camp physical
General Care
- Prescription Refill Visit
- Wound Care and Dressing Change
Heart & Circulation
- EKG
Heart health
- Heart monitor
Hormones
- Hormone replacement therapy consult
Injections
- Bursa injection
- Joint injection or aspiration
- Vitamin B12 Injections
Injury Care
- Burn Treatment
- Splinting and temporary casting
Lab tests
- Cholesterol screening
- Hemoglobin A1c Test
- Thyroid Blood Test
- Urinalysis
Mental Health
- Depression screening
Metabolic
- Weight Loss Medication Consultation
Minor surgery
- Cyst Removal
Minor Surgery
- Incision and drainage of an abscess
- Ingrown toenail removal
- Minor laceration repair
- Superficial foreign-body removal
Pain Management
- Trigger-point injection
Prevention
- Travel health clinic and vaccines
Respiratory
- Asthma Action Plan Consultation
- Nebulizer Breathing Treatment
Screening
- Blood Pressure Check and Monitoring
- STI and STD Screening
Skin procedures
- Mole Check
- Mole removal
- Wart Removal
Treatments
- IV hydration for cancer patients
Virtual care
- Virtual doctor visit
Women's Health
- Birth control counseling
- Well-woman exam
Women's health
- Pap smear
Procedures Most Often Billed to Medicare
3,495 services · 443 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
130 | More often than most peers in Physician Assistant — Medical |
| X-ray of hand, 2 views | Imaging | 73120 |
26 | Too few peers to compare |
| X-ray of foot, 2 views | Imaging | 73620 |
24 | Too few peers to compare |
| X-ray of knee, 1-2 views | Imaging | 73560 |
22 | As often as other peers in Physician Assistant — Medical |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
15 | Less often than most peers in Physician Assistant — Medical |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
52 | More often than most peers in Physician Assistant — Medical |
| Injection of additional new drug or substance into vein | Treatment | 96375 |
51 | Too few peers to compare |
| Hyaluronan or derivative, triluron, for intra-articular injection, 1 mg | Drug given | J7332 |
1,520 | Too few peers to compare |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,320 | As often as other peers in Physician Assistant — Medical |
| Injection, diphenhydramine hcl, up to 50 mg | Drug given | J1200 |
29 | Too few peers to compare |
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 8
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.
Other physician assistants in La Palma 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid large joint using ultrasound guidance 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Ruey J. Chang?
Ruey J. Chang is a physician assistant in La Palma, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Medical”.
NPI registry
What is Ruey J. Chang's address?
Ruey J. Chang is listed at 5451 la Palma Ave Suite 25, La Palma, CA 90623. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Ruey J. Chang?
The number on file is (714) 670-1340. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Ruey J. Chang's NPI number?
Ruey J. Chang's National Provider Identifier is 1699064006. 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 Ruey J. Chang train?
Ruey J. Chang attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Ruey J. Chang been practicing?
Ruey J. Chang has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What procedures does Ruey J. Chang perform?
According to Medicare billing data, Ruey J. Chang performs procedures including aspiration and/or injection of fluid large joint using ultrasound guidance; reads or performs imaging such as x-ray of hand, 2 views and x-ray of foot, 2 views; provides treatments such as injection of drug or substance under skin or into muscle and injection of additional new drug or substance into vein, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Ruey J. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Ruey J. 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.