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- 4647 Zion Ave, San Diego, CA 92120
About Dr. Tseng
William T. Tseng, MD is a hospitalist practicing in San Diego, CA. William trained at University of Utah School of Medicine, graduating in 1996. William is also listed as specializing in internal medicine. According to Medicare claims data, William cared for 762 Medicare patients across 830 services. The services billed most often include sarscv2 vac 30mcg trs-suc im and admn sarscov2 vacc 1 dose. This provider record is associated with NPI 1093874752.
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
- (619) 528-5000
- Email not available
Practice Locations
4647 ZION AVE
San Diego, CA 92120
Conditions Commonly Evaluated or Treated
Within Hospital 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
Allergic Reactions
Blood Clots
Blood Disorders
Brain & nerves
Brain & Nerves
Breathing & lungs
Digestive health
- Acute gallbladder inflammation
- Acute pancreatitis
- Ascites
- Bowel obstruction
- C. diff diarrhea
- Severe diverticulitis flare-up
- Stomach or intestinal bleeding
Emergencies
Endocrine
- Dangerously High Calcium
General medical
- Hip fracture medical care
- Low sodium or electrolyte imbalance
- Post-surgery fever or infection
- Severe dehydration
- Short stature and growth concerns
Heart & Circulation
- A-Fib Flare-Up
- Heart Attack Inpatient Care
- Shock
Heart & circulation
- Dangerous high blood pressure
- Deep vein thrombosis
- Heart failure flare-up
- Severe anemia
- Supraventricular tachycardia
- Unexplained chest pain
Hormones & diabetes
Infections
- Bone infection
- Cellulitis
- Complicated Bladder Infection
- Flesh-Eating Infection
- Infective endocarditis
- Sepsis or blood infection
- Severe COVID-19 illness
- Severe flu illness
Kidney & urinary
Liver & Digestive
- Hepatic encephalopathy
- Severe Fecal Impaction
- Sudden Liver Failure
Lung Infections
- Hospital-Acquired Pneumonia
- Severe Pneumonia
Lungs & Breathing
Nutrition
- Severe Malnutrition In Hospital
Procedures & services
Access & tubes
- Arterial catheter placement
- Central line placement
- Feeding or stomach tube insertion
- PICC line placement coordination
- Urinary catheter insertion
Addiction Medicine
- Inpatient Opioid Withdrawal Induction
Airway & Breathing
Breathing support
- BiPAP or CPAP therapy
- Breathing machine management
- Oxygen therapy
Critical Care
- Continuous IV Sedation Management
- CPR and defibrillation
- Rapid Response Team Call
Diagnostic procedures
- Emergency ultrasound
- Hospital heart rhythm monitoring
- Lumbar puncture
- Swallowing safety evaluation coordination
Diagnostic Testing
Draining fluids
Emergency Care
- Blood Thinner Reversal
Heart Procedures
- Bedside Heart Ultrasound
- Electrical cardioversion
Hospital services
- Alcohol detox monitoring
- Comfort care transition
- Fall risk assessment
- Hospital admission
- Hospital discharge planning
- Hospital observation care
- Hospital wound and bed sore care
- Inpatient dialysis coordination
- Inpatient physical therapy evaluation
- Medication management
- Post-surgery hospital recovery care
- Pre-surgery medical clearance
- Rehab or nursing home placement evaluation
- Specialist consultation coordination
Joint Procedures
Kidney Care
- Inpatient Peritoneal Dialysis Care
Lung Procedures
Medication & fluids
- Blood sugar insulin drip
- Blood thinner drip management
- Blood transfusion
- IV antibiotic treatment
- IV electrolyte replacement
- IV fluids
- Patient-Controlled Analgesia (PCA) Setup
Mental Health
- Medical-Psychiatric Inpatient Evaluation
Neurological Care
- Continuous Neurological Checks
- Emergency Stroke Response
Nutrition Support
Rehabilitation
- Inpatient Occupational Therapy Evaluation
Urinary Care
- Continuous Bladder Irrigation
Procedures Most Often Billed to Medicare
830 services · 762 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
418 | More than most peers in Hospitalist |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
412 | More than most peers in Hospitalist |
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 hospitalists at this location 2
Same specialty, same street address — most likely the same department or group.
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 hospitalists in San Diego 6
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at University of Utah School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1996 at University of Utah School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Sarscv2 vac 30mcg trs-suc im 5
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Tseng specialize in?
Dr. Tseng is a hospitalist in San Diego, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Tseng located?
Dr. Tseng is listed at 4647 Zion Ave, San Diego, CA 92120. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Tseng's phone number?
The number on file is (619) 528-5000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Tseng's NPI number?
Dr. Tseng's National Provider Identifier is 1093874752. 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. Tseng go to medical school?
Dr. Tseng attended University of Utah School of Medicine, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Tseng been practicing?
Dr. Tseng has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Tseng do most often?
According to Medicare billing data, Dr. Tseng provides treatments such as sarscv2 vac 30mcg trs-suc im and admn sarscov2 vacc 1 dose. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Tseng confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tseng. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.