Physician Profile
Unclaimed ProfileAbout KOO
John Y.m. Koo, MD is a healthcare provider in San Francisco, CA specialising in dermatology. John trained at Harvard Medical School, graduating in 1981. John is also listed as specialising in psychiatry.
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
Common questions
What does Dr. Koo specialise in?
Dr. Koo is a dermatology in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DERMATOLOGY”.
NPI registry
Where is Dr. Koo located?
Dr. Koo is listed at 515 SPRUCE ST, San Francisco, CA 94118. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Koo's phone number?
The number on file is (415) 476-4701. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Koo's NPI number?
Dr. Koo's National Provider Identifier is 1245289594. 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. Koo go to medical school?
Dr. Koo attended Harvard Medical School, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Koo been practising?
Dr. Koo has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Koo do most often?
According to Medicare billing data, Dr. Koo 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 Dr. Koo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Koo. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 476-4701
- Email not available
Practice Locations
515 SPRUCE ST
San Francisco, CA 94118
Procedures Most Often Billed to Medicare
48 services · 28 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
32 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other dermatology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Other dermatology specialists in San Francisco 8
Same specialty, same city.
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1981 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.