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- 2557 Mowry Ave Ste 30, Fremont, CA 94538
About Dr. Van Tassel
Jason Van Tassel, M.D. is a healthcare provider in Fremont, CA specializing in otolaryngology (ent). Jason trained at Georgetown University School of Medicine, graduating in 1997. According to Medicare claims data, Jason cared for 1,818 Medicare patients across 2,181 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, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and removal of impacted ear wax. This provider record is associated with NPI 1225143084.
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
- (510) 248-1590
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2557 MOWRY AVE STE 30
Fremont, CA 94538
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
Cancer
- Nasopharyngeal cancer
- Oropharyngeal cancer
- Sinonasal cancer
- Laryngeal cancer
- Oral cavity cancer
- Skin cancer of the head and neck
Pediatric and congenital
Most searched conditions
Balance
Ear and hearing
- Cholesteatoma
- Eustachian tube dysfunction
- Hearing loss
- Otosclerosis
- Perforated eardrum
- Swimmer's ear
Head, neck, and salivary
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
Head & Neck
Throat & Voice
Procedures & services
Cosmetic
Ear & Hearing
Ear procedures
- Bone-anchored hearing-device placement
- Cochlear implant surgery
- Ear-tube placement
- Eardrum repair
- Mastoid surgery
- Stapes surgery
- Earwax removal
Endocrine Surgery
Facial plastic and reconstructive
Head & Neck
Head and neck surgery
- Parathyroid surgery
- Submandibular gland removal
- Thyroid removal surgery
- Transoral robotic surgery
- Voice-box removal
- Neck lymph-node dissection
- Parotid gland surgery
Nose & Sinus
Nose and sinus procedures
- Balloon sinus dilation
- Endoscopic sinus surgery
- Nasal cautery for nosebleeds
- Nasal-polyp removal
- Reduction of a broken nose
- Septoplasty
- Turbinate reduction
- Rhinoplasty
Office diagnosis
- Balance and vestibular testing
- ENT consultation
- Fine-needle aspiration of a neck mass
- Flexible laryngoscopy
- Hearing test
- Nasal endoscopy
- Rigid laryngoscopy
Throat, voice, and swallowing
Most searched procedures
Sleep and airway
Throat & Voice
Procedures Most Often Billed to Medicare
2,181 services · 1,818 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of impacted ear wax | Procedure | 69210 |
300 | More than most peers in Otolaryngology (ENT) |
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
178 | More than most peers in Otolaryngology (ENT) |
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
81 | More often than most peers in Otolaryngology (ENT) |
| Complex control of nose bleed | Procedure | 30903 |
40 | More than most peers in Otolaryngology (ENT) |
| Evaluation of sleep-disordered breathing by examination of upper airway using an endoscope | Procedure | 42975 |
12 | Less often than most peers in Otolaryngology (ENT) |
| Reshaping of nasal cartilage | Procedure | 30520 |
11 | Less often than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
704 | More than most peers in Otolaryngology (ENT) |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
374 | More than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
203 | More often than most peers in Otolaryngology (ENT) |
| Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing | Billing code | G0268 |
127 | More often than most peers in Otolaryngology (ENT) |
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 otolaryngology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 30 related providers in 4 groups
Other otolaryngology specialists in Fremont 7
Same specialty, same city.
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of impacted ear wax 7
Providers in CA who bill this service to Medicare most often.
Common questions
What is Jason Van Tassel's specialty?
Jason Van Tassel is an otolaryngology (ent) in Fremont, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Jason Van Tassel?
Jason Van Tassel is listed at 2557 Mowry Ave Ste 30, Fremont, CA 94538. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Jason Van Tassel?
The number on file is (510) 248-1590. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Jason Van Tassel's NPI number?
Jason Van Tassel's National Provider Identifier is 1225143084. 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 Jason Van Tassel's education?
Jason Van Tassel attended Georgetown University School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Jason Van Tassel been practicing?
Jason Van Tassel has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What is Jason Van Tassel known for?
According to Medicare billing data, Jason Van Tassel performs procedures including removal of impacted ear wax, diagnostic exam of voice box using a flexible endoscope and diagnostic exam of nasal passages using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jason Van Tassel confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jason Van Tassel. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.