William Francis Nicholson, M.D.
Cardiovascular Disease Physician · Fremont, CA
William Francis Nicholson, M.D. is a cardiovascular disease physician with a practice address in Fremont, California, and NPI 1144381278, issued on Dec 13, 2006. Check the license (California G47903, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Francis Nicholson
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G47903 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2557 Mowry Ave Ste 33, Fremont, CA 94538
- Phone
- (510) 745-8100
- Enumerated
- Dec 13, 2006
- Record last updated
- Jul 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (510) 797-4983
- Medicaid ID
- 00G479031 CA
- Medicare enrollment
- Enrolled (PECOS I20101213000462); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2557 Mowry Ave Ste 33
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucia Yumena, M.D.Nephrology Physician1508927633
Verify William Francis Nicholson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G47903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,666 Medicare Part D claims for 211 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium232 claims
- Carvedilol149 claims
- Amlodipine Besylate134 claims
- Lisinopril119 claims
- Eliquis105 claims
- Metformin Hcl97 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Washington Township Hospital DistrictFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Francis Nicholson among 2,574 cardiovascular disease physician records in California
William Francis Nicholson, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1981 · median 1999 among the 1,742 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Fremont → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Sangeetha Balakrishnan, M.D.Fremont, CA 945381326055658
- Carl Carlson, M.D.Fremont, CA 945381386669489
- Vanessa Go, MDFremont, CA 945381780762351
- Aung Hla, MDFremont, CA 945381588749246
- Ingrid Hogberg, M.D.Fremont, CA 945381275683286
- Ashit Jain, M.D.Fremont, CA 945381154344919
- Romesh Japra, M.D.Fremont, CA 945381144250184
- Pradeep Kumar, MD FACC FSCAIFremont, CA 945381295838746
Common questions
What is William Francis Nicholson, M.D.'s NPI number?
William Francis Nicholson, M.D.'s National Provider Identifier (NPI) is 1144381278, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Francis Nicholson, M.D. located?
The NPPES record lists a practice address at 2557 Mowry Ave Ste 33, Fremont, CA, 94538. Phone: (510) 745-8100. Providers update this record themselves, so call before visiting.
How can I verify William Francis Nicholson, M.D.'s license?
NPPES lists California license number G47903, 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 Francis Nicholson, M.D. prescribe under Medicare Part D?
In 2024, William Francis Nicholson, M.D. had 2,666 Medicare Part D claims for 211 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is William Francis Nicholson, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.