William Joseph Westerkam, MD
Pediatrics Physician · Columbia, SC
William Joseph Westerkam, MD is a pediatrics physician with a practice address in Columbia, South Carolina, and NPI 1013978600, issued on Mar 31, 2006. Check the license (South Carolina 6229, as entered in NPPES) on the South Carolina Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Joseph Westerkam
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 6229 SC
Self-reported in NPPES; status is on the state search - Practice location
- 320 Harbison Blvd, Columbia, SC 29212
- Phone
- (803) 749-0181
- Enumerated
- Mar 31, 2006
- Record last updated
- Apr 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (803) 749-3229
- Medicaid ID
- 06229 SC
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,136 in South Carolina → Look up another NPI →
Also registered at 320 Harbison Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Debra Prosser, N.P.Family Nurse Practitioner1659393890
Verify William Joseph Westerkam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 6229Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Joseph Westerkam among 1,136 pediatrics physician records in South Carolina
William Joseph Westerkam, MD is one of 1,136 pediatrics physician records with a practice address in South Carolina. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileNo · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2008 · 52% 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 South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
162 pediatrics physician records list a practice address in Columbia
They are 162 of the 11,200 NPPES records with a practice address in Columbia, and 1,136 pediatrics physician records in South Carolina. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,136 in South Carolina → Every provider in Columbia → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Joshua Cone, DOColumbia, SC 292121952530354
- Lloyd Kapp, M.D., F.A.A.P.Columbia, SC 292121043327190
- Kay Moore, MDColumbia, SC 292121932216991
- John Rider, MDColumbia, SC 292121073585204
- Beverley Wilson, MDColumbia, SC 292121013079870
- Douglas Holtzman, MDColumbia, SC 292101902881717
- Thomas Brady, M.D.Columbia, SC 292091295705200
- John Carroll, M.D.Columbia, SC 292091669442869
Common questions
What is William Joseph Westerkam, MD's NPI number?
William Joseph Westerkam, MD's National Provider Identifier (NPI) is 1013978600, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Joseph Westerkam, MD located?
The NPPES record lists a practice address at 320 Harbison Blvd, Columbia, SC, 29212. Phone: (803) 749-0181. Providers update this record themselves, so call before visiting.
How can I verify William Joseph Westerkam, MD's license?
NPPES lists South Carolina license number 6229, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. 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. 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.