Kathleen Tajiri, MD
Allergy & Immunology Physician · Napa, CA
Kathleen Tajiri, MD is an allergy & immunology physician with a practice address in Napa, California, and NPI 1689624983, issued on May 10, 2006. Check the license (California G65086, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathleen Tajiri
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- G65086 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Pear Tree LN, Napa, CA 94558
- Phone
- (707) 258-8100
- Enumerated
- May 10, 2006
- Record last updated
- Apr 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 258-0734
- Medicare enrollment
- Enrolled (PECOS I20101030000025); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 1100 Pear Tree LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sam Ahn, M.D.Allergy & Immunology (Internal Medicine) Physician1558423814
- Ravdeep Kaur, M.D.Allergy & Immunology (Internal Medicine) Physician1134567092
- Amber Keenan, FNPNurse Practitioner1972022465
Verify Kathleen Tajiri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
159 Medicare Part D claims for 43 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Montelukast Sodium27 claims
- Azelastine Hcl24 claims
- Trelegy Ellipta16 claims
- Azelastine-Fluticasone12 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.
Industry payments in 2024: $49.42
3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- North Bay Allergy And AsthmaNapa, CA
- Sutter Valley Medical FoundationFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Tajiri among 444 allergy & immunology physician records in California
Kathleen Tajiri, 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
- Graduated1986 · median 2004 among the 281 with a school on file
- Record last updated2010 · 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 Napa → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Larry Posner, MDNapa, CA 945581548271216
- Frank Orson, M.D.Lafayette, CA 945491982626131
- Madeleine Chollet, M.D., PH.D.Dublin, CA 945681518351667
- Raymond Hong, M.D.Dublin, CA 945681881890200
- Natalie CacHayward, CA 945451205006657
- Michael Louie, MDHayward, CA 945451629156492
- Robert Sachs, MDHayward, CA 945451083792857
- Paul Cheng, MDSan Leandro, CA 945771073619706
Common questions
What is Kathleen Tajiri, MD's NPI number?
Kathleen Tajiri, MD's National Provider Identifier (NPI) is 1689624983, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Tajiri, MD located?
The NPPES record lists a practice address at 1100 Pear Tree LN, Napa, CA, 94558. Phone: (707) 258-8100. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Tajiri, MD's license?
NPPES lists California license number G65086, 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 Kathleen Tajiri, MD prescribe under Medicare Part D?
In 2024, Kathleen Tajiri, MD had 159 Medicare Part D claims for 43 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.