Jason Van Tassel, M.D.
Otolaryngology Physician · Fremont, CA
Jason Van Tassel, M.D. is an otolaryngology physician with a practice address in Fremont, California, and NPI 1225143084, issued on Aug 20, 2006. Check the license (California A79305, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason Van Tassel
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A79305 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2557 Mowry Ave Ste 30, Fremont, CA 94538
- Phone
- (510) 248-1590
- Enumerated
- Aug 20, 2006
- Record last updated
- Sep 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20041117001254); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2557 Mowry Ave Ste 30
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Ortlip, M.D.Facial Plastic Surgery Physician1518223981
- Megha Patel, NPNurse Practitioner1992643605
Verify Jason Van Tassel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79305Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average otolaryngology physician in 2024
1,525 Medicare Part D claims for 514 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims. 48 claims were for opioids.
Most prescribed
- Pantoprazole Sodium294 claims
- Fluticasone Propionate252 claims
- Ipratropium Bromide198 claims
- Famotidine162 claims
- Fluocinolone Acetonide Oil115 claims
- Neomycin-Polymyxin-Hc48 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $658.34
34 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Washington Township Medical FoundationFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
Other otolaryngology physician records in California
- Arman Abdalkhani, MDPalo Alto, CA1356536130
- Abdul-Rahman Abdel-ReheemLos Angeles, CA1831770437
- Ahmed AbdelmeguidPalo Alto, CA1447744180
- Rami Abdou, M.D.Santa Rosa, CA1700143013
- Eric AbelloOrange, CA1922566215
- Mohamed Aboueisha, MDLos Angeles, CA1316678881
- Marianne Abouyared, M.D.Sacramento, CA1235472200
- Norton Abramson, M.D.San Clemente, CA1356488696
- Basil Adad, MDWalnut Creek, CA1487732574
- Brett Adams, MDStockton, CA1407934227
Common questions
What is Jason Van Tassel, M.D.'s NPI number?
Jason Van Tassel, M.D.'s National Provider Identifier (NPI) is 1225143084, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason Van Tassel, M.D. located?
The NPPES record lists a practice address at 2557 Mowry Ave Ste 30, Fremont, CA, 94538. Phone: (510) 248-1590. Providers update this record themselves, so call before visiting.
How can I verify Jason Van Tassel, M.D.'s license?
NPPES lists California license number A79305, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jason Van Tassel, M.D. prescribe under Medicare Part D?
In 2024, Jason Van Tassel, M.D. had 1,525 Medicare Part D claims for 514 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Jason Van Tassel, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.