William Fuller Fearon, M.D.
Interventional Cardiology Physician · Stanford, CA
William Fuller Fearon, M.D. is an interventional cardiology physician with a practice address in Stanford, California, and NPI 1770671455, issued on Oct 10, 2006. Check the license (California A54553, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Fuller Fearon
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- A54553 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Oct 10, 2006
- Record last updated
- Apr 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20081203000854); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mohamad Abbass, MDNeurological Surgery Physician1679492151
Verify William Fuller Fearon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54553Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
1,100 Medicare Part D claims for 167 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Rosuvastatin Calcium158 claims
- Atorvastatin Calcium142 claims
- Clopidogrel95 claims
- Amlodipine Besylate77 claims
- Ezetimibe64 claims
- Lisinopril63 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): 76.5 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: $959.26
10 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 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.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Interventional Cardiology Physician providers in California
There are 632 interventional cardiology physician records in California.
Other interventional cardiology physician records in California
- Ayman AbdelkarimTorrance, CA1407353600
- Murrad Abdelkarim, M.D.Torrance, CA1073706495
- Obai Abdullah, MDCarmichael, CA1417263450
- Mohammad Abid, MD FACCIndio, CA1699857706
- Bader Abu Ghalyoun, MDStockton, CA1740492214
- Islam Abudayyeh, M.D.Redlands, CA1356451785
- Roger Acheatel, M.D.Escondido, CA1730182619
- Oluwayemisi Adejumo, M.D.Oakland, CA1699031179
- Ashish Aggarwal, M.D.Encino, CA1760682868
- Atul Aggarwal, MDBakersfield, CA1043290778
Common questions
What is William Fuller Fearon, M.D.'s NPI number?
William Fuller Fearon, M.D.'s National Provider Identifier (NPI) is 1770671455, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Fuller Fearon, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify William Fuller Fearon, M.D.'s license?
NPPES lists California license number A54553, 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 William Fuller Fearon, M.D. prescribe under Medicare Part D?
In 2024, William Fuller Fearon, M.D. had 1,100 Medicare Part D claims for 167 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
What is William Fuller Fearon, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.