Physician Profile
Hanley Ma, M.D.
Unclaimed ProfileAbout Dr. Ma
Hanley Ma, M.D. practices internal medicine in San Francisco, CA. Hanley is a 2009 graduate of University of Minnesota Medical School. According to Medicare claims data, Hanley cared for 479 Medicare patients across 749 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, and hospital discharge day management, more than 30 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) 600-6000
- Email not available
Practice Locations
1101 VAN NESS AVE
San Francisco, CA 94109
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
749 services · 479 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
423 | More often than most peers in INTERNAL MEDICINE |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
117 | More often than most peers in INTERNAL MEDICINE |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
87 | As often as other peers in INTERNAL MEDICINE |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Billing code | G0180 |
46 | More often than most peers in INTERNAL MEDICINE |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
28 | |
| Advance care planning, first 30 minutes | Office visit | 99497 |
24 | |
| Critical care, first 30-74 minutes | Office visit | 99291 |
24 |
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 internal medicines at this location 8
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 — 24 related providers in 3 groups
Other internal medicines in San Francisco 8
Same specialty, same city.
Trained at University of Minnesota Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at University of Minnesota Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Hanley Ma's specialty?
Hanley Ma is an internal medicine in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Hanley Ma?
Hanley Ma is listed at 1101 Van Ness Ave, San Francisco, CA 94109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Hanley Ma?
The number on file is (415) 600-6000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Hanley Ma's NPI number?
Hanley Ma's National Provider Identifier is 1609191006. 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
What is Hanley Ma's education?
Hanley Ma attended University of Minnesota Medical School, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Hanley Ma been practicing?
Hanley Ma has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What is Hanley Ma known for?
According to Medicare billing data, Hanley Ma the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Hanley Ma confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Hanley Ma. 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.