Kristen M. Walters, MD
Allergy & Immunology Physician · Aliso Viejo, CA
Kristen M. Walters, MD is an allergy & immunology physician with a practice address in Aliso Viejo, California, and NPI 1437442308, issued on May 25, 2011. Check the license (California A129955, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kristen M. Walters
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A129955 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Journey Ste 201, Aliso Viejo, CA 92656
- Phone
- (949) 287-4900
- Enumerated
- May 25, 2011
- Record last updated
- Sep 11, 2023
- Medicare enrollment
- Enrolled (PECOS I20160725000914); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 2 Journey Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gillian Bassirpour, MDAllergy Physician1811216765
Verify Kristen M. Walters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A129955Check 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
154 Medicare Part D claims for 45 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Ipratropium Bromide14 claims
- Odactra14 claims
- Montelukast Sodium11 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: $965.15
32 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme 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.
Kristen M. Walters among 444 allergy & immunology physician records in California
Kristen M. Walters, 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 2011, is newer than 74% of them.
- NPI issued2011 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 281 with a school on file
- Record last updated2023 · 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 Aliso Viejo → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Loula Amin, M.D.Newport Beach, CA 926601043452782
- John Chiu, MDNewport Beach, CA 926601326121716
- Min Jung Lee, MDNewport Beach, CA 926601295050508
- William Sokol, MDNewport Beach, CA 926601497756522
- Ripdeep Mangat, M.D.Newport Beach, CA 926631518069590
- Vivian Aranez, M.D.Huntington Beach, CA 926481699032805
- Steven Weinstein, MDHuntington Beach, CA 926471518035120
- Marc Dyer, MDLaguna Niguel, CA 926771144341918
Common questions
What is Kristen M. Walters, MD's NPI number?
Kristen M. Walters, MD's National Provider Identifier (NPI) is 1437442308, issued on May 25, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kristen M. Walters, MD located?
The NPPES record lists a practice address at 2 Journey Ste 201, Aliso Viejo, CA, 92656. Phone: (949) 287-4900. Providers update this record themselves, so call before visiting.
How can I verify Kristen M. Walters, MD's license?
NPPES lists California license number A129955, 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 Kristen M. Walters, MD prescribe under Medicare Part D?
In 2024, Kristen M. Walters, MD had 154 Medicare Part D claims for 45 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.