Aleksandra Dorota Bokszczanin-Knosala, MD
Allergy & Immunology Physician · San Jose, CA
Aleksandra Dorota Bokszczanin-Knosala, MD is an allergy & immunology physician with a practice address in San Jose, California, and NPI 1669544409, issued on Nov 15, 2006. Check the license (California C51352, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aleksandra Dorota Bokszczanin-Knosala
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- C51352 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 International Cir, San Jose, CA 95119
- Phone
- (408) 972-7000
- Enumerated
- Nov 15, 2006
- Record last updated
- Jan 10, 2022
- Medicaid ID
- 00C513520 CA
- Medicare enrollment
- Enrolled (PECOS I20040423000651); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 260 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Aleksandra Dorota Bokszczanin-Knosala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C51352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
591 Medicare Part D claims for 157 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Montelukast Sodium79 claims
- Spiriva Respimat41 claims
- Fluticasone Propionate40 claims
- Alvesco39 claims
- Levocetirizine Dihydrochloride37 claims
- Albuterol Sulfate Hfa27 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
- Permanente Medical Group IncSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aleksandra Dorota Bokszczanin-Knosala among 444 allergy & immunology physician records in California
Aleksandra Dorota Bokszczanin-Knosala, MD is one of 444 allergy & immunology 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 7% of them.
- NPI issued2006 · 7% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2004 among the 281 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in San Jose → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Mona Liu, MDSan Jose, CA 951191043755754
- Deepti Vellaichamy Manian, MDSan Jose, CA 951191255884672
- Kristi Annecone, FNPSan Jose, CA 951171316038581
- Alan Goldsobel, MDSan Jose, CA 951171063528321
- Toby Levenson, MDSan Jose, CA 951171649288945
- Thomas Santora, MDSan Jose, CA 951171417098799
- Robert Torrano, MDSan Jose, CA 951171306854708
- James Wolfe, MDSan Jose, CA 951171194733428
Common questions
What is Aleksandra Dorota Bokszczanin-Knosala, MD's NPI number?
Aleksandra Dorota Bokszczanin-Knosala, MD's National Provider Identifier (NPI) is 1669544409, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Aleksandra Dorota Bokszczanin-Knosala, MD located?
The NPPES record lists a practice address at 260 International Cir, San Jose, CA, 95119. Phone: (408) 972-7000. Providers update this record themselves, so call before visiting.
How can I verify Aleksandra Dorota Bokszczanin-Knosala, MD's license?
NPPES lists California license number C51352, 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 Aleksandra Dorota Bokszczanin-Knosala, MD prescribe under Medicare Part D?
In 2024, Aleksandra Dorota Bokszczanin-Knosala, MD had 591 Medicare Part D claims for 157 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.