DR. MATTHEW DEARDORFF MD, PHD
NPI 1164541181
Medical Genetics - Clinical Genetics (M.D.) in Los Angeles, CA
About Dr. Matthew Deardorff Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW DEARDORFF MD, PHD (NPI 1164541181) is an individual clinical genetics (m.d.) provider in Los Angeles, California, licensed in California (C168510) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Matthew Deardorff Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Matthew Deardorff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- 23 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.
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 Matthew Deardorff's NPI number?
The NPI number for Matthew Deardorff is 1164541181. It was assigned to this individual provider in the NPPES registry on March 29, 2007.
Where is Matthew Deardorff located?
Matthew Deardorff practices at 4650 W Sunset Blvd # Ms 43, Los Angeles, CA 90027. The listed phone number is (877) 543-9522.
What is Matthew Deardorff's specialty?
The primary specialty registered for this NPI is Medical Genetics, specializing in Clinical Genetics (M.D.), with taxonomy code 207SG0201X.
Is Matthew Deardorff enrolled in Medicare?
Yes. Matthew Deardorff is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Matthew Deardorff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Deardorff reassigns Medicare benefits to Chlamg-Pathology LP (Los Angeles, CA). The 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 Matthew Deardorff'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 Matthew Deardorff was last updated on April 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Matthew Deardorff, MD, PHD · NPI 1164541181
Clinical Genetics (M.D.) physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 29, 2007.
## Identity
- **NPI:** 1164541181 (Entity type: Individual)
- **Enumerated:** March 29, 2007
- **Primary specialty:** Medical Genetics - Clinical Genetics (M.D.) · taxonomy 207SG0201X
- **State license:** C168510 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4650 W SUNSET BLVD # MS 43, Los Angeles, CA 90027-6062
- **Phone:** (877) 543-9522
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Chlamg-Pathology LP (NPI 1316241102, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 30, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1164541181) · Data from the CMS NPPES public registry.