Physician Profile
Unclaimed ProfileAbout BREALL
William S. Breall, M.D. practices internal medicine in San Francisco, CA. William is a 1954 graduate of Oregon Health Sciences University School of Medicine. William is also listed as specializing in cardiovascular disease. Medicare claims data shows William provided 183 services to 76 patients.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 933-9100
- Email not available
Practice Locations
2250 HAYES ST SUITE 204
San Francisco, CA 94117
Procedures Most Often Billed to Medicare
183 services · 76 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
36 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
106 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
41 |
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 4
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 Oregon Health Sciences University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Breall specialize in?
Dr. Breall is an internal medicine in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Breall located?
Dr. Breall is listed at 2250 HAYES ST SUITE 204, San Francisco, CA 94117. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Breall's phone number?
The number on file is (415) 933-9100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Breall?
Dr. Breall's National Provider Identifier is 1124042635. 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. Breall go to medical school?
Dr. Breall attended Oregon Health Sciences University School of Medicine, graduating in 1954. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Breall have?
Dr. Breall has 72 years experience. Calculated from a graduation year of 1954, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Breall do most often?
According to Medicare billing data, Dr. Breall provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Breall's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Breall. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.