William J. Pierce, M.D.
Surgery Physician · Lompoc, CA
William J. Pierce, M.D. is a surgery physician with a practice address in Lompoc, California, and NPI 1083620330, issued on Jul 31, 2006. Check the license (California G86834, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William J. Pierce
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G86834 CA
Self-reported in NPPES; status is on the state search - Practice location
- 136 N Third St, Lompoc, CA 93436
- Phone
- (805) 736-1253
- Enumerated
- Jul 31, 2006
- Record last updated
- Feb 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 736-3193
- Medicaid ID
- ZZZ37313Z CA
- Medicare enrollment
- Enrolled (PECOS I20050228001045); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 136 N Third St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa Ercolini-Bhatia, MDFamily Medicine Physician1982670626
- David Lemmel, M.D.General Practice Physician1871526590
- Emily Liebo, PA-C, MPHPhysician Assistant1780231795
- Randall Michel, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1225062623
- Miranda PierceNurse Practitioner1073230769
- Jennifer Vineyard, D.O.Internal Medicine Physician1477847630
Verify William J. Pierce in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G86834Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average surgery physician in 2024
44 Medicare Part D claims for 33 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Tramadol Hcl27 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.
Industry payments in 2024: $212.75
1 payment: education; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Lompoc Valley Medical CenterLompoc, CA · Acute Care Hospitals1 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
William J. Pierce among 3,118 surgery physician records in California
William J. Pierce, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1993 · median 2003 among the 1,901 with a school on file
- Record last updated2012 · 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Lompoc → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Peter Davis, MDLompoc, CA 934361851404743
- William Ganske, M.D.Lompoc, CA 934361952887234
- Bandhit Sinkaset, M.D.Lompoc, CA 934361710991146
- Christopher Taglia, M.D.Lompoc, CA 934361538562202
- Phillip McPeak, M.D.Vandenberg Afb, CA 934371497193486
- Dena Smith, M.D. FACSNipomo, CA 934441134500770
- Clifford Gelman, MDPismo Beach, CA 934491083688782
- Edwin Hayashi, M.D.Pismo Beach, CA 934491295797397
Common questions
What is William J. Pierce, M.D.'s NPI number?
William J. Pierce, M.D.'s National Provider Identifier (NPI) is 1083620330, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William J. Pierce, M.D. located?
The NPPES record lists a practice address at 136 N Third St, Lompoc, CA, 93436. Phone: (805) 736-1253. Providers update this record themselves, so call before visiting.
How can I verify William J. Pierce, M.D.'s license?
NPPES lists California license number G86834, 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 J. Pierce, M.D. prescribe under Medicare Part D?
In 2024, William J. Pierce, M.D. had 44 Medicare Part D claims for 33 beneficiaries; the average among surgery physician prescribers was 147. 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.