Physician Profile
Lawrence L. Chao, M.D.
Unclaimed ProfileAbout Dr. Chao
Lawrence L. Chao, M.D. practices internal medicine in San Francisco, CA. According to Medicare claims data, Lawrence cared for 655 Medicare patients across 1,632 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, and therapy procedure using massage, each 15 minutes.
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) 333-3302
- Email not available
Practice Locations
2645 OCEAN AVE SUITE 207
San Francisco, CA 94132
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
1,632 services · 655 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
94 | As often as other peers in Internal Medicine |
| Therapy procedure using massage, each 15 minutes | Treatment | 97124 |
138 | |
| Application of low energy heat | Treatment | 97026 |
138 | |
| Acupuncture with electrical stimulation, initial 15 minutes | Treatment | 97813 |
121 | As often as other peers in Internal Medicine |
| Acupuncture with electrical stimulation, each additional 15 minutes | Treatment | 97814 |
120 | As often as other peers in Internal Medicine |
| Influenza vaccine, trivalent, 0.5 ml dosage | Treatment | 90658 |
56 | More often than most peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
14 | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
553 | More than most peers in Internal Medicine |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
149 | More than most peers in Internal Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
129 | More 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 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 — 32 related providers in 4 groups
Other internists in San Francisco 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Other 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 kind of doctor is Lawrence L. Chao?
Lawrence L. Chao 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
What is Lawrence L. Chao's address?
Lawrence L. Chao is listed at 2645 Ocean Ave Suite 207, San Francisco, CA 94132. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Lawrence L. Chao?
The number on file is (415) 333-3302. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Lawrence L. Chao's NPI number?
Lawrence L. Chao's National Provider Identifier is 1700896370. 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 Lawrence L. Chao train?
Lawrence L. Chao attended Other, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Lawrence L. Chao been practicing?
Lawrence L. Chao has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What procedures does Lawrence L. Chao perform?
According to Medicare billing data, Lawrence L. Chao performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as therapy procedure using massage, each 15 minutes and application of low energy heat, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Lawrence L. Chao confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Lawrence L. Chao. 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.