Karissa Wasiak, MD
Family Medicine Physician · Tucson, AZ
Karissa Wasiak, MD is a family medicine physician with a practice address in Tucson, Arizona, and NPI 1548823602, issued on Apr 15, 2019. Check the license (Arizona R77393, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karissa Wasiak
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R77393 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 707 N Alvernon Way Ste 101, Tucson, AZ 85711
- Phone
- (520) 694-8888
- Enumerated
- Apr 15, 2019
- Record last updated
- Mar 5, 2025
- Fax
- (520) 694-1640
- Medicare enrollment
- Enrolled (PECOS I20220706001752); accepts Medicare assignment
- Medical or professional school
- University Of Nevada School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 707 N Alvernon Way Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karissa Wasiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R77393Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average family medicine physician in 2024
1,274 Medicare Part D claims for 155 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 88 claims were for opioids.
Most prescribed
- Atorvastatin Calcium87 claims
- Amlodipine Besylate59 claims
- Lisinopril38 claims
- Albuterol Sulfate Hfa36 claims
- Fluticasone Propionate36 claims
- Gabapentin36 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
- Banner-University Medical GroupTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karissa Wasiak among 3,119 family medicine physician records in Arizona
Karissa Wasiak, MD is one of 3,119 family medicine physician records with a practice address in Arizona. 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 2019, is newer than 83% of them.
- NPI issued2019 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2006 among the 1,775 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
554 family medicine physician records list a practice address in Tucson
They are 554 of the 18,788 NPPES records with a practice address in Tucson, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Tucson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eamon Armstrong, M.D.Tucson, AZ 857111629036934
- Mary Blatt, M.D.Tucson, AZ 857111902883127
- Colleen Cagno, MDTucson, AZ 857111245202720
- Brian Donovan, M.D.Tucson, AZ 857111780686949
- Rinly Gecosala, M.D., M.P.H.Tucson, AZ 857111033177043
- Linda Granath, M.D.Tucson, AZ 857111447235841
- Ramesh Karra, MDTucson, AZ 857111891759452
- Randa Kutob, MDTucson, AZ 857111326145889
Common questions
What is Karissa Wasiak, MD's NPI number?
Karissa Wasiak, MD's National Provider Identifier (NPI) is 1548823602, issued on Apr 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Karissa Wasiak, MD located?
The NPPES record lists a practice address at 707 N Alvernon Way Ste 101, Tucson, AZ, 85711. Phone: (520) 694-8888. Providers update this record themselves, so call before visiting.
How can I verify Karissa Wasiak, MD's license?
NPPES lists Arizona license number R77393, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karissa Wasiak, MD prescribe under Medicare Part D?
In 2024, Karissa Wasiak, MD had 1,274 Medicare Part D claims for 155 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.