William Baskin Walkup, MD
Psychiatry Physician · Columbia, SC
William Baskin Walkup, MD is a psychiatry physician with a practice address in Columbia, South Carolina, and NPI 1386619948, issued on Feb 17, 2006. Check the license (South Carolina 16261, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Baskin Walkup
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 16261 SC
Self-reported in NPPES; status is on the state search - Practice location
- 125 Alpine Circle, Columbia, SC 29223
- Phone
- (803) 779-3548
- Enumerated
- Feb 17, 2006
- Record last updated
- Jan 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (803) 779-7055
- Medicaid IDs
- 162610 SC
400186 SC - Medicare enrollment
- Enrolled (PECOS I20040420001271); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 891 in South Carolina → Look up another NPI →
Also registered at 125 Alpine Circle
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Bank, MDPsychiatry Physician1982678686
- James Claytor, MDChild & Adolescent Psychiatry Physician1558335281
- Martha Freibert, MDPsychiatry Physician1144295874
- Warren Garrison, MDPsychiatry Physician1922073659
- E Hickman, LISW CP APClinical Social Worker1619922747
- Jaime Koenig, MDPsychiatry Physician1992779607
Verify William Baskin Walkup in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 16261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average psychiatry physician in 2024
2,987 Medicare Part D claims for 197 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Trazodone Hcl215 claims
- Bupropion Xl207 claims
- Alprazolam199 claims
- Venlafaxine Hcl Er178 claims
- Clonazepam166 claims
- Lorazepam155 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.
Bills Medicare through one group practice
- Charleston Counseling Center PCColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Baskin Walkup among 891 psychiatry physician records in South Carolina
William Baskin Walkup, MD is one of 891 psychiatry physician records with a practice address in South Carolina. 67% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 63% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1991 · median 2007 among the 365 with a school on file
- Record last updated2012 · 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 2084P0800X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
171 psychiatry physician records list a practice address in Columbia
They are 171 of the 11,200 NPPES records with a practice address in Columbia, and 891 psychiatry physician records in South Carolina.
All 891 in South Carolina → Every provider in Columbia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Robert Bank, MDColumbia, SC 292231982678686
- Martha Freibert, MDColumbia, SC 292231144295874
- Warren Garrison, MDColumbia, SC 292231922073659
- Melissa Kannaday, M.D.Columbia, SC 292231760681902
- Jaime Koenig, MDColumbia, SC 292231992779607
- Kevin Krebs, M.D.Columbia, SC 292231730159047
- Aziz Mohiuddin, MDColumbia, SC 292231982678660
- Ellie Mozingo, MDColumbia, SC 292231316912066
Common questions
What is William Baskin Walkup, MD's NPI number?
William Baskin Walkup, MD's National Provider Identifier (NPI) is 1386619948, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Baskin Walkup, MD located?
The NPPES record lists a practice address at 125 Alpine Circle, Columbia, SC, 29223. Phone: (803) 779-3548. Providers update this record themselves, so call before visiting.
How can I verify William Baskin Walkup, MD's license?
NPPES lists South Carolina license number 16261, 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.
How much does William Baskin Walkup, MD prescribe under Medicare Part D?
In 2024, William Baskin Walkup, MD had 2,987 Medicare Part D claims for 197 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.