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- 5000 San Bernardino St, Montclair, CA 91763
About Dr. Sin
Tiffany Sin, DO practices emergency medicine in Montclair, CA. According to Medicare claims data, Tiffany cared for 118 Medicare patients across 119 services. The services billed most often include emergency department visit with high level of medical decision making, emergency department visit with moderate level of medical decision making, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only. The provider's National Provider Identifier (NPI) is 1982196184.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (909) 625-5411
- Email not available
Practice Locations
5000 SAN BERNARDINO ST
Montclair, CA 91763
Conditions Commonly Evaluated or Treated
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.
Conditions
Bites & Stings
- Spider or insect sting reaction
- Snake Bite or Venomous Sting
Brain & Nerves
- Delirium
- Stroke
- Fainting and syncope
- Seizure in Child
- Severe headache or sudden migraine
- Status epilepticus
- Transient ischemic attack
Endocrine & Metabolic
- Dangerously low blood sugar
- Dangerous high blood sugar
Eye Care
- Open-globe eye injury
Injuries & Trauma
- Animal or dog bite
- Bone fractures
- Deep cut or wound
- Dislocated joint
- Severe burn
- Sprains and muscle strains
- Traumatic brain injury
Rashes & allergy
- Poison Ivy
Skin & Infections
- Skin abscess or boil
Urinary & Bladder
- Inability to pee
Women's Health
- Heavy vaginal bleeding
- Ectopic pregnancy
Abdomen & Digestion
- Appendicitis
- Lower gastrointestinal bleeding
- Vomiting or throwing up blood
Allergy & Immune
- Angioedema
Allergy & Immunology
- Severe Allergic Reaction
Blood & Circulation
- Deep vein thrombosis
Breathing
- Choking or swallowed object
- Coughing up blood
- Severe asthma attack
- Shortness of breath
Digestion & Stomach
- Abdominal Pain
- Acute gallbladder inflammation
- Bowel obstruction
Ear, Nose & Throat
- Nosebleeds
Environmental
- Heat stroke
- Hypothermia and frostbite
Eye Emergency
General Emergency
- Severe dehydration
- Uncontrolled bleeding
Heart & Chest
- Acute coronary syndrome
- Heart palpitations
Heart & Circulation
- Dangerous high blood pressure
Heart & Lungs
Infections & Illness
- High fever
- Sepsis or blood infection
Lungs & Breathing
Men's Health
- Testicular torsion
Poisoning & Environmental
- Smoke Inhalation
Poisoning & Toxins
- Drug overdose or poisoning
Spine & Back
- Severe back pain
Urinary & Kidney
- Kidney stones
Procedures & services
Diagnostic testing
Diagnostics
- Rapid blood work
- Lumbar puncture
Ear, Nose & Throat
- Nasal packing for nosebleed
Eye & ENT
- Superficial foreign-body removal
- Eye-pressure measurement
- Foreign Object Removal from Eye
Imaging & Diagnostics
- Emergency MRI scan
- Emergency CT scan
- Emergency ultrasound
- Emergency X-ray
Injections & Vaccines
- Rabies shot series
- Tetanus shot
Kidney Care
- Emergency dialysis
Medications
- IV medication for severe nausea
- IV medication for severe pain
- Emergency epinephrine injection
Mental Health
- Emergency psychiatric evaluation
Minor Procedures
- Tick Removal
- Urinary catheter insertion
- Fishhook or embedded splinter removal
- Incision and drainage of an abscess
- Nasal cautery for nosebleeds
Minor Trauma
- Stuck ring removal
Orthopedics
- Popping a dislocated joint back in place
- Splinting and temporary casting
Poisoning & Toxicology
- Antivenom treatment
Specialized Care
- Sexual assault forensic exam
Stroke & Vascular
- Clot busting medication for stroke
Toxicology
- Stomach pumping or activated charcoal
- Narcan overdose reversal
Women's Health
- Emergency pelvic exam
Wound Care
- Burn dressing and care
- Skin glue for cuts
- Stitches and Laceration Repair
- Wound cleaning and debridement
- Wound stapling
Abdominal Procedures
- Paracentesis
Airway & Breathing
- Emergency surgical airway
Anesthesia & Sedation
- Moderate dental sedation
Breathing & Airway
- Breathing Treatment
- Emergency intubation
Critical Care
- Blood transfusion
- Central line placement
- Chest tube insertion
- CPR and defibrillation
Digestive Care
- Urgent upper endoscopy
Eye Care
- Emergency Eye Flushing
Heart & Diagnostics
- Cardioversion for rapid heartbeat
- EKG
Heart Care
- Temporary Pacemaker Placement
Lung & Respiratory
- Chest Needle Decompression
- Draining lung fluid
Orthopedic Procedures
- Joint injection or aspiration
Supportive Care
- IV fluids
Procedures Most Often Billed to Medicare
119 services · 118 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
12 | Less often than most peers in Emergency Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
22 | Less often than most peers in Emergency Medicine |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
48 | Less often than most peers in Emergency Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
37 | 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.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other emergency physicians at this location 1
Same specialty, same street address — most likely the same department or group.
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 — 27 related providers in 4 groups
Other emergency physicians in Montclair 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 1 view 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Sin specialize in?
Dr. Sin is an emergency physician in Montclair, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Where is Dr. Sin located?
Dr. Sin is listed at 5000 San Bernardino St, Montclair, CA 91763. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sin's phone number?
The number on file is (909) 625-5411. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Sin's NPI number?
Dr. Sin's National Provider Identifier is 1982196184. 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 Dr. Sin go to medical school?
Dr. Sin attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Sin been practicing?
Dr. Sin has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Sin do most often?
According to Medicare billing data, Dr. Sin 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
Has Dr. Sin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sin. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.