NPPES file of Aug 9, 2026

Sidney Horatio Wilberforce, M.D.

Urology Physician · Walnut Creek, CA

Sidney Horatio Wilberforce, M.D. is a urology physician with a practice address in Walnut Creek, California, and NPI 1346423449, issued on Dec 11, 2007. Check the license (California A117191, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346423449
Name
Sidney Horatio Wilberforce
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
A117191 CA
Self-reported in NPPES; status is on the state search
Practice location
1425 S Main St, Walnut Creek, CA 94596
Phone
(925) 295-4060
Enumerated
Dec 11, 2007
Record last updated
Feb 11, 2022
Fax
(925) 295-5544
Medicare enrollment
Enrolled (PECOS I20111011000116); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1425 S Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eric AaserudeEmergency Medicine Physician1811491194
  2. Derek Abbassi, MDObstetrics & Gynecology Physician1841364155
  3. Peter Ackerman, MDEmergency Medicine Physician1427435023
  4. Aaron Mark Acosta, DOEmergency Medicine Physician1538789987
  5. Basil Adad, MDOtolaryngology Physician1487732574
  6. Derek Ailes, M.D.Emergency Medical Services (Emergency Medicine) Physician1992001804

Verify Sidney Horatio Wilberforce in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A117191
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4% more Medicare Part D claims than the average urology physician in 2024

1,387 Medicare Part D claims for 371 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 81 claims were for opioids.

  1. Sidney Wilberforce1,387
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl296 claims
  2. Finasteride230 claims
  3. Trospium Chloride161 claims
  4. Myrbetriq137 claims
  5. Cefadroxil67 claims
  6. Mirabegron Er56 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncWalnut Creek, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sidney Horatio Wilberforce among 1,524 urology physician records in California

Sidney Horatio Wilberforce, M.D. is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 40% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2006 · median 2003 among the 1,049 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California.

The 8 urology physician records with the nearest ZIP codes

  1. Amir Arsanjani, MDWalnut Creek, CA 945961154486793
  2. Andrew Chen, M.D.Walnut Creek, CA 945961811039480
  3. Michael Choi, MDWalnut Creek, CA 945961215015797
  4. Jason Frankel, MDWalnut Creek, CA 945961750729976
  5. Scot Hagey, MDWalnut Creek, CA 945961215015896
  6. Gregory Marshall, MDWalnut Creek, CA 945961437237526
  7. John Oh, MDWalnut Creek, CA 945961649358730
  8. Raymond Rosenbaum, MDWalnut Creek, CA 945961679651749

Common questions

What is Sidney Horatio Wilberforce, M.D.'s NPI number?

Sidney Horatio Wilberforce, M.D.'s National Provider Identifier (NPI) is 1346423449, issued on Dec 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sidney Horatio Wilberforce, M.D. located?

The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4060. Providers update this record themselves, so call before visiting.

How can I verify Sidney Horatio Wilberforce, M.D.'s license?

NPPES lists California license number A117191, 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 Sidney Horatio Wilberforce, M.D. prescribe under Medicare Part D?

In 2024, Sidney Horatio Wilberforce, M.D. had 1,387 Medicare Part D claims for 371 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

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.