DAGMARA OLSEN MD
NPI 1356912059
Internal Medicine in Pico Rivera, CA

Q: What is Dagmara Olsen's NPI number?

The NPI number for Dagmara Olsen is 1356912059. It was assigned to this individual provider in the NPPES registry on July 5, 2021.

Q: What is Dagmara Olsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Dagmara Olsen was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 05, 2021PECOS EnrolledAccepts Medicare Assignment

8337 TELEGRAPH RD STE 102, PICO RIVERA, CA 90660(562) 445-3181 Get Directions Write a Review

NPPES record last updated: July 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dagmara Olsen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAGMARA OLSEN MD (NPI 1356912059) is an individual internal medicine provider in Pico Rivera, California, licensed in California (193842) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1356912059

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDAGMARA OLSENCredential: MD

Location Address8337 TELEGRAPH RD STE 102Pico Rivera, CA 90660-4933

Mailing Address8337 Telegraph Rd Ste 102Pico Rivera, CA 90660-4933

Phone(562) 445-3181

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateJuly 5, 2021

Last NPPES UpdateJuly 15, 2025

NPPES CertifiedJuly 15, 2025

✔ NPI 1356912059 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · 193842✔ Licensed in MS · T-4368

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

8337 TELEGRAPH RD STE 102, Pico Rivera, CA 90660

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Other Identifiers 2

OtherT-4368MS · Medical License

OtherT-4368MS · Medical Board Of Ms

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dagmara Olsen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800317983

PECOS Enrollment IDI20250305001875

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Dagmara Olsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Prohealth Partners, A Medical Group, Inc.

Same address

Internal Medicine

8337 TELEGRAPH RD STE 102
Pico Rivera, CA 90660

Reassigned Medicare billing, California enrollment
279 clinicians in this Medicare group

NPI 1912899394 (562) 445-3181

The Roads Foundation, Inc.

7.2 mi

Community Health

121 S LONG BEACH BLVD
Compton, CA 90221

Reassigned Medicare billing, California enrollment
58 clinicians in this Medicare group

NPI 1508278359 (310) 627-5850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90660 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RONALD E. PINKERTON, M.D. A MEDICAL CORPORATION

Family Medicine

8337 TELEGRAPH RD STE 102
PICO RIVERA, CA 90660

Los Angeles County (562) 445-3181

PROHEALTH PARTNERS, A MEDICAL GROUP, INC.

Internal Medicine

8337 TELEGRAPH RD STE 102
PICO RIVERA, CA 90660

Los Angeles County (562) 445-3181

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dagmara Olsen's NPI number?

The NPI number for Dagmara Olsen is 1356912059. It was assigned to this individual provider in the NPPES registry on July 5, 2021.

Where is Dagmara Olsen located?

Dagmara Olsen practices at 8337 Telegraph Rd Ste 102, Pico Rivera, CA 90660. The listed phone number is (562) 445-3181.

What is Dagmara Olsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Dagmara Olsen enrolled in Medicare?

Yes. Dagmara Olsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Dagmara Olsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dagmara Olsen reassigns Medicare benefits to 2 organizations: Prohealth Partners, A Medical Group, Inc. (Pico Rivera, CA) and The Roads Foundation, Inc. (Compton, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dagmara Olsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Dagmara Olsen was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.