Walter Lo Sia Su, MD
Hospitalist Physician · St Cloud, MN
Walter Lo Sia Su, MD is a hospitalist physician with a practice address in St Cloud, Minnesota, and NPI 1477542371, issued on Oct 14, 2005. Check the license (Minnesota 37684, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Walter Lo Sia Su
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 37684 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1200 6TH Ave N, St Cloud, MN 56303
- Phone
- (320) 251-2700
- Enumerated
- Oct 14, 2005
- Record last updated
- Dec 21, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (320) 240-2118
- Medicaid ID
- 242513100 MN
- Medicare enrollment
- Enrolled (PECOS I20050408000871); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 401 in Minnesota → Look up another NPI →
Also registered at 1200 6TH Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Triniti Feldhege, CNPNeonatal Nurse Practitioner1962487017
- Kathryn Katka, APRN, CNPFamily Nurse Practitioner1669494159
- Wesley Lindquist, MDInternal Medicine Physician1104816768
- Thomas Math, MDInfectious Disease Physician1215927835
Verify Walter Lo Sia Su in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 37684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hospitalist physician in 2024
74 Medicare Part D claims for 30 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydralazine Hcl23 claims
- Metoprolol Succinate13 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
- Centracare ClinicSaint Cloud, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter Lo Sia Su among 401 hospitalist physician records in Minnesota
Walter Lo Sia Su, MD is one of 401 hospitalist physician records with a practice address in Minnesota. 92% 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, 96% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated1990 · median 2011 among the 354 with a school on file
- Record last updated2015 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 hospitalist physician records list a practice address in St Cloud
They are 29 of the 474 NPPES records with a practice address in St Cloud, and 401 hospitalist physician records in Minnesota.
All 401 in Minnesota → Every provider in St Cloud → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Olayiwola Adetunji, MBBSSt Cloud, MN 563031578552477
- Christopher Aronson, MDSaint Cloud, MN 563031649269291
- Melissa Barry, MDSaint Cloud, MN 563031700846425
- Gregory Cooper, MDSaint Cloud, MN 563031730179870
- Sherrie Erickson-Birkedahl, MDSt Cloud, MN 563031407830482
- Gemma Lim, MD, FACPSt Cloud, MN 563031497726749
- Paul Marek, MD, FHMSt Cloud, MN 563031134118920
- Eric McFarling, MDSt Cloud, MN 563031467437251
Common questions
What is Walter Lo Sia Su, MD's NPI number?
Walter Lo Sia Su, MD's National Provider Identifier (NPI) is 1477542371, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Walter Lo Sia Su, MD located?
The NPPES record lists a practice address at 1200 6TH Ave N, St Cloud, MN, 56303. Phone: (320) 251-2700. Providers update this record themselves, so call before visiting.
How can I verify Walter Lo Sia Su, MD's license?
NPPES lists Minnesota license number 37684, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Walter Lo Sia Su, MD prescribe under Medicare Part D?
In 2024, Walter Lo Sia Su, MD had 74 Medicare Part D claims for 30 beneficiaries; the average among hospitalist physician prescribers was 521. 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.