Mark Luther Schlauderaff, M.D.
Internal Medicine Physician · Shelton, WA
Mark Luther Schlauderaff, M.D. is an internal medicine physician with a practice address in Shelton, Washington, and NPI 1487651667, issued on Jul 5, 2005. Check the license (Washington MD00019248, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mark Luther Schlauderaff
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00019248 WA
Self-reported in NPPES; status is on the state search - Practice location
- 237 Professional Way, Shelton, WA 98584
- Phone
- (360) 426-2500
- Enumerated
- Jul 5, 2005
- Record last updated
- Apr 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (360) 462-2500
- Medicaid ID
- 8466971 WA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 237 Professional Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Flores, PA-CMedical Physician Assistant1063634277
- Kc Graham, PA-CPhysician Assistant1467857532
- Kathryn Hackney, PACMedical Physician Assistant1639166176
- Rebecca Hendryx, M.D.Family Medicine Physician1467494799
- Peggy Hosford, M.D.Family Medicine Physician1205831179
- Amie Mower, D.O.Family Medicine Physician1235493784
Verify Mark Luther Schlauderaff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00019248Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average internal medicine physician in 2024
758 Medicare Part D claims for 199 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium66 claims
- Amlodipine Besylate38 claims
- Tamsulosin Hcl37 claims
- Losartan Potassium32 claims
- Lisinopril31 claims
- Levothyroxine Sodium30 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.
Mark Luther Schlauderaff among 3,079 internal medicine physician records in Washington
Mark Luther Schlauderaff, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2017 · 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 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Washington
There are 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Shelton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Anderson, M.D.Shelton, WA 985841780909556
- Douglas Lindahl, D.O.Shelton, WA 985841043215916
- Jimmy Wesson, M.D.Shelton, WA 985841407262496
- In Kyu Yoo, M.D.Shelton, WA 985841033452073
- Jack Hamson, M.D.South Bend, WA 985861932633385
- Alexander Dreisin, MBBS, MDBattle Ground, WA 986041255868592
- Quoc Ho, M.D.Mossyrock, WA 985641710278775
- Navin Nagaraj, MDBattle Ground, WA 986041154586238
Common questions
What is Mark Luther Schlauderaff, M.D.'s NPI number?
Mark Luther Schlauderaff, M.D.'s National Provider Identifier (NPI) is 1487651667, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Luther Schlauderaff, M.D. located?
The NPPES record lists a practice address at 237 Professional Way, Shelton, WA, 98584. Phone: (360) 426-2500. Providers update this record themselves, so call before visiting.
How can I verify Mark Luther Schlauderaff, M.D.'s license?
NPPES lists Washington license number MD00019248, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Luther Schlauderaff, M.D. prescribe under Medicare Part D?
In 2024, Mark Luther Schlauderaff, M.D. had 758 Medicare Part D claims for 199 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.