NPPES file of Aug 9, 2026

Neville W. N Williams, MD

Urology Physician · Pasadena, CA

Neville W. N Williams, MD is a urology physician with a practice address in Pasadena, California, and NPI 1588774368, issued on Aug 30, 2006. Check the license (California A34071, 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
1588774368
Name
Neville W. N Williams
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
A34071 CA
Self-reported in NPPES; status is on the state search
Practice location
10 Congress St, Pasadena, CA 91105
Phone
(626) 577-8640
Enumerated
Aug 30, 2006
Record last updated
Jan 26, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(626) 577-6502
Medicaid ID
00A34071 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 10 Congress St

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

  1. Syeda Ali, MDNephrology Physician1528051984
  2. Aykut Bayrak, MDReproductive Endocrinology Physician1679586218
  3. Rizwan Bhatti, M.D.Ophthalmology Physician1588724108
  4. Barry Blum, MDInternal Medicine Physician1639141716
  5. Gerald Bowns, MDOphthalmology Physician1225000672
  6. Samuel Bruce, M.D.Maternal & Fetal Medicine Physician1417069105

Verify Neville W. N Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A34071
    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

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99% fewer Medicare Part D claims than the average urology physician in 2024

20 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Neville Williams20
  2. Specialty average1,340

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.

Urology Physician providers in California

There are 1,524 urology physician records in California.

Other urology physician records in California

  1. David Aaronson, MDOakland, CA1215053129
  2. Jason Abber, MDPanorama City, CA1356366926
  3. Marc Abboud, MDLos Alamitos, CA1265096531
  4. George AbdelsayedAnaheim, CA1568721843
  5. Garen AbediDowney, CA1285909051
  6. Jennifer Abidari, MDStanford, CA1811098197
  7. Sherif Aboseif, MDOxnard, CA1093882995
  8. Parwiz Abrahimi, M.D., PH.D.Los Angeles, CA1154857613
  9. Anthony Acquaviva, MDVallejo, CA1457439283
  10. Theodore Affue, M.D.El Centro, CA1386674000

Common questions

What is Neville W. N Williams, MD's NPI number?

Neville W. N Williams, MD's National Provider Identifier (NPI) is 1588774368, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Neville W. N Williams, MD located?

The NPPES record lists a practice address at 10 Congress St, Pasadena, CA, 91105. Phone: (626) 577-8640. Providers update this record themselves, so call before visiting.

How can I verify Neville W. N Williams, MD's license?

NPPES lists California license number A34071, 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 Neville W. N Williams, MD prescribe under Medicare Part D?

In 2024, Neville W. N Williams, MD had 20 Medicare Part D claims; 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.