Physician Profile
Unclaimed ProfileAbout DEARDORFF
William James Deardorff practices geriatric medicine in San Francisco, CA. William is also listed as specializing in student in an organized health care education program. According to Medicare claims data, William cared for 171 Medicare patients across 219 services.
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) 406-1417
- Email not available
Practice Locations
505 PARNASSUS AVE 15 LONG
San Francisco, CA 94143
Procedures Most Often Billed to Medicare
219 services · 171 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
79 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
46 |
| Prolonged nursing facility evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualif | Billing code | G0317 |
32 |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
30 |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
20 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
12 |
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.
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.
Other geriatric medicines in San Francisco 8
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Deardorff's specialty?
Dr. Deardorff is a geriatric medicine in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GERIATRIC MEDICINE”.
NPI registry
Where can I find Dr. Deardorff?
Dr. Deardorff is listed at 505 PARNASSUS AVE 15 LONG, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Deardorff?
The number on file is (415) 406-1417. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Deardorff's NPI number?
Dr. Deardorff's National Provider Identifier is 1003348830. 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 Dr. Deardorff's medical education?
Dr. Deardorff attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Deardorff been practicing?
Dr. Deardorff has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Deardorff known for?
According to Medicare billing data, Dr. Deardorff 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. Deardorff confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Deardorff. 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.