DR. KAREN ELISA MILIAN OLMOS M.D., M.P.H.
NPI 1457582439
Family Medicine in Harbor City, CA
About Dr. Karen Elisa Milian Olmos M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN ELISA MILIAN OLMOS M.D., M.P.H. (NPI 1457582439) is an individual family medicine provider in Harbor City, California, licensed in California (A114027) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Beverly Hills, and is a graduate of University Of California, San Francisco School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Dr. Karen Elisa Milian Olmos M.d., M.p.h. 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.
Medicare Billing Reassignments
2Medicare enrollment records show Karen Olmos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Torrance, CA 90502
- Reassigned Medicare billing, California enrollment
- 1,939 clinicians in this Medicare group
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 1,766 clinicians in this Medicare group
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 90710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HARBOR CITY, CA 90710
HARBOR CITY, CA 90710
HARBOR CITY, CA 90710
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 Karen Olmos's NPI number?
The NPI number for Karen Olmos is 1457582439. It was assigned to this individual provider in the NPPES registry on August 7, 2009.
Where is Karen Olmos located?
Karen Olmos practices at 1403 Lomita Blvd Ste 102, Harbor City, CA 90710. The listed phone number is (310) 534-7600.
What is Karen Olmos's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karen Olmos enrolled in Medicare?
Yes. Karen Olmos 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 Karen Olmos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Olmos reassigns Medicare benefits to 2 organizations: County Of Los Angeles (Torrance, CA) and The Regents Of The University Of California (Los Angeles, 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 Karen Olmos'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 Karen Olmos was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.
# Dr. Karen Elisa Milian Olmos, M.D., M.P.H. · NPI 1457582439
Family Medicine physician in Harbor City, California. Individual provider, active in the CMS NPPES registry since August 7, 2009.
## Identity
- **NPI:** 1457582439 (Entity type: Individual)
- **Enumerated:** August 7, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A114027 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1403 LOMITA BLVD STE 102, Harbor City, CA 90710-2084
- **Phone:** (310) 534-7600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): County Of Los Angeles (NPI 1851363188, Torrance, CA); The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** October 19, 2026
- **Other identifiers:** Other A114027 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1457582439) · Data from the CMS NPPES public registry.