Lisa Thiel Vasak, M.D.
Internal Medicine Physician · Atascadero, CA
Lisa Thiel Vasak, M.D. is an internal medicine physician with a practice address in Atascadero, California, and NPI 1023081510, issued on Feb 7, 2006. Check the license (California G77546, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lisa Thiel Vasak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G77546 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5920 West Mall, Atascadero, CA 93422
- Phone
- (805) 466-0676
- Enumerated
- Feb 7, 2006
- Record last updated
- Nov 8, 2023
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5920 West Mall
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Timothy Tidwell, MDInternal Medicine Physician1275972325
- Christopher Tucker, PAPhysician Assistant1942853627
Verify Lisa Thiel Vasak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
123 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Nitrofurantoin Mono-Macro25 claims
- Doxycycline Hyclate15 claims
- Amoxicillin-Clavulanate Potass11 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Lisa Thiel Vasak among 17,696 internal medicine physician records in California
Lisa Thiel Vasak, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2023 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Atascadero
They are 15 of the 992 NPPES records with a practice address in Atascadero, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Atascadero → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Hossein Akhavan, M.D.Atascadero, CA 934221871779942
- Robin Alleyne, MD.Atascadero, CA 934221114957941
- Lymar Bik, M.D.Atascadero, CA 934221164530622
- Ben Cooke, MDAtascadero, CA 934221528512803
- Jason Green, M.D.Atascadero, CA 934221215000823
- Emily Luk, M.D.Atascadero, CA 934221023118007
- Jane McClenahan, M.D.Atascadero, CA 934221679599377
- Abiodun Obadina, M.D.,Atascadero, CA 934221790852945
Common questions
What is Lisa Thiel Vasak, M.D.'s NPI number?
Lisa Thiel Vasak, M.D.'s National Provider Identifier (NPI) is 1023081510, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lisa Thiel Vasak, M.D. located?
The NPPES record lists a practice address at 5920 West Mall, Atascadero, CA, 93422. Phone: (805) 466-0676. Providers update this record themselves, so call before visiting.
How can I verify Lisa Thiel Vasak, M.D.'s license?
NPPES lists California license number G77546, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lisa Thiel Vasak, M.D. prescribe under Medicare Part D?
In 2024, Lisa Thiel Vasak, M.D. had 123 Medicare Part D claims for 87 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lisa Thiel Vasak, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.