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Edit this profileWilliam R. Ryan, M.D. practices otolaryngology in San Francisco, CA. William is a 2005 graduate of Stanford University School of Medicine. William is also listed as specializing in otolaryngology (ent). Medicare claims data shows William provided 875 services to 704 patients. The services billed most often include diagnostic exam of voice box using a flexible endoscope, established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, and ultrasound scan of head and neck soft tissue. The provider's National Provider Identifier (NPI) is 1184811549.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2340 CLAY ST FL 5
San Francisco, CA 94115
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Balance
Ear and hearing
Head, neck, and salivary
Nose and sinus
Sleep and airway
Throat and voice
Cancer
Head & Neck
Throat & Voice
Most searched procedures
Office diagnosis
Cosmetic
Ear & Hearing
Ear procedures
Head & Neck
Head and neck surgery
Nose & Sinus
Nose and sinus procedures
Sleep and airway
Throat & Voice
Throat, voice, and swallowing
875 services · 704 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
236 | More than most peers in Otolaryngology |
| Removal of lymph nodes, muscle, and tissue of neck | Procedure | 38724 |
38 | More than most peers in Otolaryngology |
| Diagnostic exam of esophagus using a flexible endoscope through mouth | Procedure | 43200 |
30 | Too few peers to compare |
| Removal of less than half of tongue | Procedure | 41120 |
21 | Too few peers to compare |
| Diagnostic exam of lung airway using an endoscope | Procedure | 31622 |
17 | As often as other peers in Otolaryngology |
| Biopsy or removal of deep lymph nodes of neck | Procedure | 38510 |
15 | Too few peers to compare |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
115 | More than most peers in Otolaryngology |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
124 | More often than most peers in Otolaryngology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
97 | As often as other peers in Otolaryngology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
61 | As often as other peers in Otolaryngology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William R. Ryan is an ENT doctor in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Otolaryngology”.
NPI registry
William R. Ryan is listed at 2340 Clay St Fl 5, San Francisco, CA 94115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 600-3073. Contact the office directly to confirm availability and scheduling.
NPI registry
William R. Ryan's National Provider Identifier is 1184811549. 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
William R. Ryan attended Stanford University School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
William R. Ryan has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William R. Ryan performs procedures including diagnostic exam of voice box using a flexible endoscope, removal of lymph nodes, muscle, and tissue of neck and diagnostic exam of esophagus using a flexible endoscope through mouth; reads or performs imaging such as ultrasound scan of head and neck soft tissue, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by William R. Ryan. If this is you, claiming it is free.
Guide.md
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