Physician Profile
Chuan-Hsin Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Based in San Francisco, CA, Chuan-Hsin Chang, M.D. is listed in the NPI registry under internal medicine. Chuan-Hsin graduated from R Franklin University of Med & Sci/Chicago Medical School in 2008. Chuan-Hsin is also listed as specializing in student in an organized health care education program and endocrinology, diabetes & metabolism. Medicare claims data shows Chuan-Hsin provided 738 services to 417 patients. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, basic group of blood chemicals (calcium, total), and hemoglobin a1c level. NPI 1033377841 identifies this record in the national registry.
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
- (415) 391-9686
- Email not available
Practice Locations
1520 STOCKTON ST
San Francisco, CA 94133
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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
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
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
738 services · 417 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
224 | As often as other peers in Internal Medicine |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
180 | More often than most peers in Internal Medicine |
| Hemoglobin a1c level | Lab test | 83036 |
153 | More often than most peers in Internal Medicine |
| Blood test, thyroid stimulating hormone (tsh) | Lab test | 84443 |
69 | Less often than most peers in Internal Medicine |
| Thyroxine (thyroid chemical), free | Lab test | 84439 |
69 | Less often than most peers in Internal Medicine |
| Vitamin d-3 level | Lab test | 82306 |
43 | Less often than most 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 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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 — 32 related providers in 4 groups
Other internists in San Francisco 8
Same specialty, same city.
Trained at R Franklin University of Med & Sci/Chicago Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at R Franklin University of Med & Sci/Chicago Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Chuan-Hsin Chang specialize in?
Chuan-Hsin Chang 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 Chuan-Hsin Chang located?
Chuan-Hsin Chang is listed at 1520 Stockton St, San Francisco, CA 94133. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Chuan-Hsin Chang's phone number?
The number on file is (415) 391-9686. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Chuan-Hsin Chang?
Chuan-Hsin Chang's National Provider Identifier is 1033377841. 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 Chuan-Hsin Chang train?
Chuan-Hsin Chang attended R Franklin University of Med & Sci/Chicago Medical School, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Chuan-Hsin Chang have?
Chuan-Hsin Chang has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What does Chuan-Hsin Chang do most often?
According to Medicare billing data, Chuan-Hsin Chang performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Chuan-Hsin Chang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Chuan-Hsin Chang. If this is you, claiming it is free.
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