Dagmara Olsen, MD
Internal Medicine Physician · Pico Rivera, CA
Dagmara Olsen, MD is an internal medicine physician with a practice address in Pico Rivera, California, and NPI 1356912059, issued on Jul 5, 2021. Check the license (California 193842, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dagmara Olsen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 193842 CA
T-4368 MS
Self-reported in NPPES; status is on the state search - Practice location
- 8337 Telegraph RD Ste 102, Pico Rivera, CA 90660
- Phone
- (562) 445-3181
- Enumerated
- Jul 5, 2021
- Record last updated
- Jul 15, 2025
- Medicare enrollment
- Enrolled (PECOS I20250305001875); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Dagmara Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 193842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
404 Medicare Part D claims for 73 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium24 claims
- Losartan Potassium23 claims
- Atorvastatin Calcium19 claims
- Metoprolol Succinate17 claims
- Sertraline Hcl13 claims
- Carvedilol12 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: $28.52
2 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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 one group practice
- The Roads Foundation, IncCompton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dagmara Olsen among 17,696 internal medicine physician records in California
Dagmara Olsen, MD is one of 17,696 internal medicine 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Pico Rivera
They are 6 of the 470 NPPES records with a practice address in Pico Rivera, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pico Rivera → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Parveen Ahmed, M.D.Pico Rivera, CA 906601669480745
- David Ding, MDPico Rivera, CA 906601144583758
- Gemma Ko, M.D.Pico Rivera, CA 906601437167715
- Lam Nguyen, M.D.Pico Rivera, CA 906601538594122
- Khalid Nur, M.D.Pico Rivera, CA 906601235147521
- Alast AhmadiNorwalk, CA 906501962088799
- Dane Copeland, M.D.Santa Fe Springs, CA 906701356409726
- Jennifer Cruz, NPNorwalk, CA 906501689309130
Common questions
What is Dagmara Olsen, MD's NPI number?
Dagmara Olsen, MD's National Provider Identifier (NPI) is 1356912059, issued on Jul 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dagmara Olsen, MD located?
The NPPES record lists a practice address at 8337 Telegraph RD Ste 102, Pico Rivera, CA, 90660. Phone: (562) 445-3181. Providers update this record themselves, so call before visiting.
How can I verify Dagmara Olsen, MD's license?
NPPES lists California license number 193842, 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 Dagmara Olsen, MD prescribe under Medicare Part D?
In 2024, Dagmara Olsen, MD had 404 Medicare Part D claims for 73 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.