NPPES file of Aug 9, 2026

Caitlyn Olivia Anderson, DO

Emergency Medicine Physician · Colton, CA

Caitlyn Olivia Anderson, DO is an emergency medicine physician with a practice address in Colton, California, and NPI 1275191744, issued on May 30, 2019. Check the license (California 20A19842, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275191744
Name
Caitlyn Olivia Anderson
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
20A19842 CA
Self-reported in NPPES; status is on the state search
Practice location
400 N Pepper Ave, Colton, CA 92324
Phone
(909) 580-2159
Enumerated
May 30, 2019
Record last updated
Sep 26, 2022
Medicare enrollment
Enrolled (PECOS I20230719002864); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 400 N Pepper Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shangrila AbaricoRegistered Nurse1609659325
  2. Susana AbaroRegistered Nurse1114425162
  3. Patricia AbbaRegistered Nurse1013188838
  4. Mohammad Hossein Abbasi, MD, MPHStudent in an Organized Health Care Education/Training Program1609622166
  5. Ala AbedrabboCertified Registered Nurse Anesthetist1972333144
  6. Mary AboagyeLicensed Vocational Nurse1982875605

Verify Caitlyn Olivia Anderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A19842
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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11% fewer Medicare Part D claims than the average emergency medicine physician in 2024

201 Medicare Part D claims for 134 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 21 claims were for opioids.

  1. Caitlyn Anderson201
  2. Specialty average226

Most prescribed

  1. Prednisone28 claims
  2. Azithromycin21 claims
  3. Ondansetron Odt15 claims
  4. Oxycodone-Acetaminophen15 claims
  5. Cephalexin11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Emergency Physicians OF Connecticut PCWaterbury, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Caitlyn Olivia Anderson among 7,751 emergency medicine physician records in California

Caitlyn Olivia Anderson, DO is one of 7,751 emergency 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 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2019 · median 2011 among the 4,560 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

110 emergency medicine physician records list a practice address in Colton

They are 110 of the 2,459 NPPES records with a practice address in Colton, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Rodney Borger, M.DColton, CA 923241619917465
  2. Richard Hausman, D.O.Colton, CA 923241922049113
  3. Ali Jamehdor, D.OColton, CA 923241528009008
  4. Robert Kollen, M.DColton, CA 923241073554531
  5. Eugene Kwong, M.DColton, CA 923241003857020
  6. Carol Lee, M.DColton, CA 923241043251143
  7. Pamela Lux, D.OColton, CA 923241427090323
  8. Thomas Minahan, D.OColton, CA 923241457394827

Common questions

What is Caitlyn Olivia Anderson, DO's NPI number?

Caitlyn Olivia Anderson, DO's National Provider Identifier (NPI) is 1275191744, issued on May 30, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Caitlyn Olivia Anderson, DO located?

The NPPES record lists a practice address at 400 N Pepper Ave, Colton, CA, 92324. Phone: (909) 580-2159. Providers update this record themselves, so call before visiting.

How can I verify Caitlyn Olivia Anderson, DO's license?

NPPES lists California license number 20A19842, 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 Caitlyn Olivia Anderson, DO prescribe under Medicare Part D?

In 2024, Caitlyn Olivia Anderson, DO had 201 Medicare Part D claims for 134 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Caitlyn Olivia Anderson, DO's MIPS final score?

The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.