Aaron Ridder
Family Medicine Physician · Whittier, CA
Aaron Ridder is a family medicine physician with a practice address in Whittier, California, and NPI 1558947903, issued on Mar 23, 2021. Check the license (California 20A21053, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aaron Ridder
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A21053 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12291 Washington Blvd Ste 500, Whittier, CA 90606
- Phone
- (562) 698-0811
- Enumerated
- Mar 23, 2021
- Record last updated
- Jul 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20240919001444); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 12291 Washington Blvd Ste 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benjamin Birdsall, M.D.Family Medicine Physician1740458801
- Nelson Dalla Tor, MDFamily Medicine Physician1871634162
- Kunal DudejaStudent in an Organized Health Care Education/Training Program1427851385
- Valerie Gallegos, M.D.Family Medicine Physician1407105067
- Lien Ha, MDStudent in an Organized Health Care Education/Training Program1205776515
- Scott Kirsch, MDFamily Medicine Physician1821182403
Verify Aaron Ridder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A21053Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average family medicine physician in 2024
1,503 Medicare Part D claims for 420 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Atorvastatin Calcium140 claims
- Amlodipine Besylate108 claims
- Lisinopril92 claims
- Metformin Hcl71 claims
- Losartan Potassium49 claims
- Levothyroxine Sodium41 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: $61.04
3 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Community Medical Wellness Centers USALong Beach, CA
- Superior Hospitalist Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Ridder among 17,133 family medicine physician records in California
Aaron Ridder is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2021 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 58% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
87 family medicine physician records list a practice address in Whittier
They are 87 of the 2,836 NPPES records with a practice address in Whittier, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Whittier → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Abiva, PA-CWhittier, CA 906061295858215
- Benjamin Birdsall, M.D.Whittier, CA 906061740458801
- Emanuela Bonfoco, MD, PHDWhittier, CA 906061699959973
- Alexis Cambanis, M.D., MTROPMEDWhittier, CA 906061598819419
- Nelson Dalla Tor, MDWhittier, CA 906061871634162
- Cesar Espiritu, M.D.Whittier, CA 906061144418104
- Ronald Galbreath, M.D.Whittier, CA 906061629160551
- David Gothard, M.D.Whittier, CA 906061417083999
Common questions
What is Aaron Ridder's NPI number?
Aaron Ridder's National Provider Identifier (NPI) is 1558947903, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Ridder located?
The NPPES record lists a practice address at 12291 Washington Blvd Ste 500, Whittier, CA, 90606. Phone: (562) 698-0811. Providers update this record themselves, so call before visiting.
How can I verify Aaron Ridder's license?
NPPES lists California license number 20A21053, 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 Aaron Ridder prescribe under Medicare Part D?
In 2024, Aaron Ridder had 1,503 Medicare Part D claims for 420 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.