NPPES file of Aug 9, 2026

J William Sparks, M.D.

Anesthesiology Physician · San Diego, CA

J William Sparks, M.D. is an anesthesiology physician with a practice address in San Diego, California, and NPI 1366414013, issued on Feb 6, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1366414013
Name
J William Sparks
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
203531 MA
Self-reported in NPPES; status is on the state search
Practice location
34800 Bob Wilson Dr, San Diego, CA 92134
Phone
(619) 532-6460
Enumerated
Feb 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(619) 532-6299
Medicare enrollment
Enrolled (PECOS I20090713000520); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 1998
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 34800 Bob Wilson Dr

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

  1. Jose Acosta, MDSurgical Critical Care Physician1861418618
  2. Nehkonti Adams, M.D.Infectious Disease Physician1194985705
  3. Maryam Adebayo, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1346799269
  4. Caleb Adkins, DOGeneral Practice Physician1689430860
  5. Kyle Adkins, PHARMDPharmacist1477740884
  6. Phillip Adriano, M.D.Emergency Medicine Physician1568576585

Verify J William Sparks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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Bills Medicare through one group practice

  1. Chmc Anesthesia Foundation IncBoston, MA

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

J William Sparks among 7,571 anesthesiology physician records in California

J William Sparks, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1998 · median 2006 among the 4,868 with a school on file
  • Record last updated2007 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

686 anesthesiology physician records list a practice address in San Diego

They are 686 of the 52,937 NPPES records with a practice address in San Diego, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Sean Birmingham, MDSan Diego, CA 921341053382622
  2. Christopher Cornelissen, D.O.San Diego, CA 921341013989144
  3. Cory Gaconnet, M.D.San Diego, CA 921341235101379
  4. Richard Green, M.D.San Diego, CA 921341285602623
  5. Robert Hackworth, M.D.San Diego, CA 921341891757456
  6. Richard Hirasuna, M.D.San Diego, CA 921341073585543
  7. Arthur Kelleher, M.D.San Diego, CA 921341023080736
  8. Albert Lim, D.O.San Diego, CA 921341871568642

Common questions

What is J William Sparks, M.D.'s NPI number?

J William Sparks, M.D.'s National Provider Identifier (NPI) is 1366414013, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is J William Sparks, M.D. located?

The NPPES record lists a practice address at 34800 Bob Wilson Dr, San Diego, CA, 92134. Phone: (619) 532-6460. Providers update this record themselves, so call before visiting.

How can I verify J William Sparks, M.D.'s license?

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.

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.