ELMER BIGAYAN DOROSAN NP
NPI 1649638842
Nurse Practitioner in Los Angeles, CA
About Elmer Bigayan Dorosan Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELMER BIGAYAN DOROSAN NP (NPI 1649638842) is an individual nurse practitioner in Los Angeles, California, licensed in California (NP95003750) and active in the NPI registry since February 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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
Elmer Bigayan Dorosan Np 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
4Medicare enrollment records show Elmer Dorosan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
Glendale, CA 91204
- Reassigned Medicare billing, California enrollment
- 49 clinicians in this Medicare group
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- 43 clinicians in this Medicare group
Huntington Beach, CA 92648
- Reassigned Medicare billing, California enrollment
- 7 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Elmer Dorosan's NPI number?
The NPI number for Elmer Dorosan is 1649638842. It was assigned to this individual provider in the NPPES registry on February 2, 2016.
Where is Elmer Dorosan located?
Elmer Dorosan practices at 1520 San Pablo St Ste 3000, Los Angeles, CA 90033. The listed phone number is (323) 442-5710.
What is Elmer Dorosan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Elmer Dorosan enrolled in Medicare?
Yes. Elmer Dorosan 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 Elmer Dorosan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elmer Dorosan reassigns Medicare benefits to 4 organizations: Usc Care Medical Group, Inc (Los Angeles, CA), Cedar Springs Hospitalist Medical Group, Inc. (Glendale, CA), Sycamore Hill Hospitalist Medical Group Inc (Los Angeles, CA) and Summit Neurology Inc (Huntington Beach, 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 Elmer Dorosan'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 Elmer Dorosan was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Elmer Bigayan Dorosan, NP · NPI 1649638842
Nurse Practitioner physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since February 2, 2016.
## Identity
- **NPI:** 1649638842 (Entity type: Individual)
- **Enumerated:** February 2, 2016
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** NP95003750 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1520 SAN PABLO ST STE 3000, Los Angeles, CA 90033-5315
- **Phone:** (323) 442-5710
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); Cedar Springs Hospitalist Medical Group, Inc. (NPI 1245799279, Glendale, CA); Sycamore Hill Hospitalist Medical Group Inc (NPI 1588139836, Los Angeles, CA); Summit Neurology Inc (NPI 1982386280, Huntington Beach, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** November 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1649638842) · Data from the CMS NPPES public registry.