William W. Walker, MD
Pulmonary Disease Physician · Anderson, SC
William W. Walker, MD is a pulmonary disease physician with a practice address in Anderson, South Carolina, and NPI 1700889904, issued on May 23, 2005. Check the license (South Carolina 7835, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William W. Walker
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 7835 SC
Self-reported in NPPES; status is on the state search - Practice location
- 2000 East Greenville St, Anderson, SC 29621
- Phone
- (864) 225-5667
- Enumerated
- May 23, 2005
- Record last updated
- Aug 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (864) 716-6746
- Medicaid IDs
- 000087326D GA
GP4557 SC
078356 SC - Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 202 in South Carolina → Look up another NPI →
Also registered at 2000 East Greenville St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristen Hall, APRN NPNurse Practitioner1346449550
- Stephen Hand, MDSleep Medicine (Internal Medicine) Physician1144225566
Verify William W. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 7835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
1,394 Medicare Part D claims for 160 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D.
Most prescribed
- Trelegy Ellipta181 claims
- Albuterol Sulfate Hfa149 claims
- Prednisone78 claims
- Breztri Aerosphere67 claims
- Azithromycin56 claims
- Breo Ellipta47 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: $507.26
29 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,806 providers of this specialty with any payment received $5,159.88 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.
William W. Walker among 202 pulmonary disease physician records in South Carolina
William W. Walker, MD is one of 202 pulmonary disease physician records with a practice address in South Carolina. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2011 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in South Carolina
There are 202 pulmonary disease physician records in South Carolina.
All 202 in South Carolina → Every provider in Anderson → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Emerald Rose Branch, MDAnderson, SC 296211548540578
- Christine Del Prado-Rico, MDAnderson, SC 296211992292510
- Megan Doyle McClam, M.D.Anderson, SC 296211740644343
- Syed Malik, MDAnderson, SC 296211184713992
- Charles Thompson, MDAnderson, SC 296211851394597
- Kenneth Walters, M.D.Anderson, SC 296211366679458
- William Curran, M.D.Greenville, SC 296151730128307
- Samuel Dickey, MDGreenville, SC 296151124557665
Common questions
What is William W. Walker, MD's NPI number?
William W. Walker, MD's National Provider Identifier (NPI) is 1700889904, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William W. Walker, MD located?
The NPPES record lists a practice address at 2000 East Greenville St, Anderson, SC, 29621. Phone: (864) 225-5667. Providers update this record themselves, so call before visiting.
How can I verify William W. Walker, MD's license?
NPPES lists South Carolina license number 7835, 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 W. Walker, MD prescribe under Medicare Part D?
In 2024, William W. Walker, MD had 1,394 Medicare Part D claims for 160 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.