Physician Profile
Zian H. Tseng, M.D.
Unclaimed ProfileAbout Dr. Tseng
Based in San Francisco, CA, Zian H. Tseng, M.D. is listed in the NPI registry under internal medicine. Zian graduated from University of California, San Francisco School of Medicine in 1998. Zian is also listed as specializing in cardiovascular disease. According to Medicare claims data, Zian cared for 589 Medicare patients across 940 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 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
- (415) 353-2554
- Email not available
Practice Locations
350 PARNASSUS AVE SUITE 204
San Francisco, CA 94143
Conditions Commonly Evaluated or Treated
Within Internal 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
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
940 services · 589 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
222 | More often than most peers in Internal Medicine |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
214 | More often than most peers in Internal Medicine |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
90 | As often as other peers in Internal Medicine |
| Programming of dual lead pacemaker system | Treatment | 93280 |
60 | More often than most peers in Internal Medicine |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | Treatment | 93298 |
58 | Less often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
30 | More often than most peers in Internal Medicine |
| Programming of multiple lead implantable defibrillator system | Treatment | 93284 |
21 | Less often than most peers in Internal Medicine |
| External shock to heart to regulate heart beat | Treatment | 92960 |
16 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
106 | More often than most peers in Internal Medicine |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
92 | As often as other peers in Internal 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 internists at this location 5
Same specialty, same street address — most likely the same department or group.
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.
More connections — 31 related providers in 4 groups
Other internists in San Francisco 8
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at University of California, San Francisco School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Zian H. Tseng specialize in?
Zian H. Tseng is an internist in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Zian H. Tseng located?
Zian H. Tseng is listed at 350 Parnassus Ave Suite 204, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Zian H. Tseng's phone number?
The number on file is (415) 353-2554. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Zian H. Tseng's NPI number?
Zian H. Tseng's National Provider Identifier is 1487691622. 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 Zian H. Tseng train?
Zian H. Tseng attended University of California, San Francisco School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Zian H. Tseng been practicing?
Zian H. Tseng has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Zian H. Tseng do most often?
According to Medicare billing data, Zian H. Tseng provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Zian H. Tseng confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Zian H. Tseng. 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.