Stevie Mazyck, MD
Internal Medicine Physician · Walla Walla, WA
Stevie Mazyck, MD is an internal medicine physician with a practice address in Walla Walla, Washington, and NPI 1902835697, issued on Jul 3, 2006. Check the license (Washington MD60616133, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Stevie Mazyck
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD60616133 WA
036109544 IL
Self-reported in NPPES; status is on the state search - Practice location
- 401 W Poplar St, Walla Walla, WA 99362
- Phone
- (509) 897-3320
- Enumerated
- Jul 3, 2006
- Record last updated
- Oct 25, 2023
- Medicaid ID
- 1902835697 WA
- Medicare enrollment
- Enrolled (PECOS I20160303001038); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 401 W Poplar St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexandra Baker, DNPNurse Practitioner1306473202
Verify Stevie Mazyck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60616133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Providence Health And Services - WashingtonEverett, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stevie Mazyck among 3,079 internal medicine physician records in Washington
Stevie Mazyck, MD 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2000 · median 2006 among the 1,852 with a school on file
- Record last updated2023 · 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).
37 internal medicine physician records list a practice address in Walla Walla
They are 37 of the 1,276 NPPES records with a practice address in Walla Walla, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Walla Walla → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kevin Andrews, MDWalla Walla, WA 993621174513873
- Eric Ball, M.D.Walla Walla, WA 993621275507485
- Karen Geheb, M.D.Walla Walla, WA 993621972532745
- Dan Grinstead, M.D.Walla Walla, WA 993621881668010
- Philip Hooper, MDWalla Walla, WA 993621154307742
- Eric Jauhiainen, M.D.Walla Walla, WA 993621235103466
- Patricia McIlvaine, M.D.Walla Walla, WA 993621689648594
- Cynthia Rasch, MDWalla Walla, WA 993621124075841
Common questions
What is Stevie Mazyck, MD's NPI number?
Stevie Mazyck, MD's National Provider Identifier (NPI) is 1902835697, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stevie Mazyck, MD located?
The NPPES record lists a practice address at 401 W Poplar St, Walla Walla, WA, 99362. Phone: (509) 897-3320. Providers update this record themselves, so call before visiting.
How can I verify Stevie Mazyck, MD's license?
NPPES lists Washington license number MD60616133, 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.
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.