William Charles Paul, MD
Pediatrics Physician · San Diego, CA
William Charles Paul, MD is a pediatrics physician with a practice address in San Diego, California, and NPI 1366538605, issued on Oct 5, 2006. Check the license (California G13594, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Charles Paul
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- G13594 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3930 4TH Ave, San Diego, CA 92103
- Phone
- (619) 297-9610
- Enumerated
- Oct 5, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (619) 299-7562
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 3930 4TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nicki Karlo, PTAPhysical Therapy Assistant1134136948
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Verify William Charles Paul in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G13594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average pediatrics physician in 2024
26 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
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.
William Charles Paul among 9,272 pediatrics physician records in California
William Charles Paul, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in San Diego → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Denise Brownlee, MDSan Diego, CA 921031073547477
- Jenny Clifford, M.D.San Diego, CA 921031699705806
- Bertha Gee-Lew, M.D.San Diego, CA 921031376645978
- Nicole Gorton, MDSan Diego, CA 921031356371421
- Eustratia Hubbard, MDSan Diego, CA 921031790743185
- Alisa Lawrie, M.D.San Diego, CA 921031407847908
- Michelle Leff, MDSan Diego, CA 921031053334292
- Jamie Lien, M.D.San Diego, CA 921031609880723
Common questions
What is William Charles Paul, MD's NPI number?
William Charles Paul, MD's National Provider Identifier (NPI) is 1366538605, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Charles Paul, MD located?
The NPPES record lists a practice address at 3930 4TH Ave, San Diego, CA, 92103. Phone: (619) 297-9610. Providers update this record themselves, so call before visiting.
How can I verify William Charles Paul, MD's license?
NPPES lists California license number G13594, 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 Charles Paul, MD prescribe under Medicare Part D?
In 2024, William Charles Paul, MD had 26 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.