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- 1000 S Eliseo Dr, Ste 103, Greenbrae, CA 94904
About Dr. Flis
Daniel W. Flis, M.D. is a healthcare provider in Greenbrae, CA specializing in otolaryngology. Daniel trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), graduating in 2009. Daniel is also listed as specializing in otolaryngology (ent). According to Medicare claims data, Daniel cared for 789 Medicare patients across 987 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1316266042.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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) 461-9770
- Email not available
Practice Locations
1000 S ELISEO DR STE 103
Greenbrae, CA 94904
Conditions Commonly Evaluated or Treated
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.
Conditions
Most searched conditions
- Ear infection
- Sinus infection
- Sleep apnea
- Tinnitus
- Tonsillitis
- Vertigo
Balance
Ear and hearing
- Cholesteatoma
- Eustachian tube dysfunction
- Hearing loss
- Otosclerosis
- Perforated eardrum
- Swimmer's ear
Head, neck, and salivary
- Hyperparathyroidism
- Neck mass
- Parotid gland tumor
- Salivary gland infection
- Thyroid cancer
Nose and sinus
- Broken nose
- Deviated septum
- Loss or reduction of smell
- Nasal obstruction
- Nasal polyps
- Nosebleeds
- Seasonal allergies
Sleep and airway
Throat and voice
- Enlarged adenoids
- Globus sensation
- Hoarseness and voice change
- Laryngopharyngeal reflux
- Swallowing difficulties
- Vocal cord nodules
- Vocal cord paralysis
Cancer
- Laryngeal cancer
- Oral cavity cancer
- Skin cancer of the head and neck
Head & Neck
Throat & Voice
- Frequent Strep Throat
Procedures & services
Most searched procedures
- Adenoidectomy
- Ear tube surgery
- Hearing test
- Sinus surgery
- Tonsillectomy
Office diagnosis
- Fine-needle aspiration of a neck mass
- Flexible laryngoscopy
- Nasal endoscopy
Cosmetic
Ear & Hearing
- Bone-Anchored Hearing Aid Surgery
- Eustachian Tube Balloon Dilation
Ear procedures
- Cochlear implant surgery
- Eardrum repair
- Earwax removal
- Mastoid surgery
- Stapes surgery
Head & Neck
- Neck Lump Removal
- Salivary Duct Stone Removal
- Thyroid Nodule Biopsy
Head and neck surgery
- Neck lymph-node dissection
- Parathyroid surgery
- Parotid gland surgery
- Thyroid removal surgery
- Voice-box removal
Nose & Sinus
- Broken Nose Repair
Nose and sinus procedures
- Nasal cautery for nosebleeds
- Nasal-polyp removal
- Rhinoplasty
- Septoplasty
- Turbinate reduction
Sleep and airway
- Drug-induced sleep endoscopy
- Hypoglossal nerve stimulator implantation
- Uvulopalatopharyngoplasty
Throat & Voice
Throat, voice, and swallowing
- Esophageal dilation
- Microlaryngoscopy
- Vocal-fold injection
Procedures Most Often Billed to Medicare
987 services · 789 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
121 | More often than most peers in Otolaryngology |
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
58 | As often as other peers in Otolaryngology |
| Biopsy or removal of nasal polyp or tissue using an endoscope | Procedure | 31237 |
18 | Less often than most peers in Otolaryngology |
| Comprehensive hearing and speech recognition test | Treatment | 92557 |
15 | Less 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 |
301 | More often than most 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 |
183 | More often than most peers in Otolaryngology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
137 | More often than most peers in Otolaryngology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
99 | More often than most peers in Otolaryngology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
55 | More often than most peers in Otolaryngology |
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 ENT doctors at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 25 related providers in 4 groups
Trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of voice box using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Daniel W. Flis specialize in?
Daniel W. Flis is an ENT doctor in Greenbrae, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Otolaryngology”.
NPI registry
Where is Daniel W. Flis located?
Daniel W. Flis is listed at 1000 S Eliseo Dr Ste 103, Greenbrae, CA 94904. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Daniel W. Flis's phone number?
The number on file is (415) 461-9770. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Daniel W. Flis's NPI number?
Daniel W. Flis's National Provider Identifier is 1316266042. 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 Daniel W. Flis train?
Daniel W. Flis attended Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Daniel W. Flis been practicing?
Daniel W. Flis has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Daniel W. Flis do most often?
According to Medicare billing data, Daniel W. Flis performs procedures including diagnostic exam of voice box using a flexible endoscope, diagnostic exam of nasal passages using an endoscope and biopsy or removal of nasal polyp or tissue using an endoscope; provides treatments such as comprehensive hearing and speech recognition test, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Daniel W. Flis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Daniel W. Flis. If this is you, claiming it is free.
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