DR. DRAGOS DIACONESCU M.D.
NPI 1851325518
Anesthesiology in Orange, CA
About Dr. Dragos Diaconescu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DRAGOS DIACONESCU M.D. (NPI 1851325518) is an individual anesthesiology provider in Orange, California, licensed in California (C128632) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Irvine, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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. Dragos Diaconescu M.d. 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
5Medicare enrollment records show Dragos Diaconescu reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 420 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 63 clinicians in this Medicare group
Foothill Ranch, CA 92610
- Reassigned Medicare billing, California enrollment
- 11 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 76 clinicians in this Medicare group
- Reassigned Medicare billing, California enrollment
- 420 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 4
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Dragos Diaconescu's NPI number?
The NPI number for Dragos Diaconescu is 1851325518. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Dragos Diaconescu located?
Dragos Diaconescu practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Dragos Diaconescu's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Dragos Diaconescu enrolled in Medicare?
Yes. Dragos Diaconescu 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 Dragos Diaconescu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dragos Diaconescu reassigns Medicare benefits to 5 organizations: Regents Of The University Of (Orange, CA), Talbert Anesthesia Group Incorporated (Los Alamitos, CA), Clarity Anesthesia Medical Group (Foothill Ranch, CA), Socal Anesthesia Solutions, Inc (Los Angeles, CA) and Allied Anesthesia Medical Group Inc (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 Dragos Diaconescu'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 Dragos Diaconescu was last updated on November 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Dragos Diaconescu, M.D. · NPI 1851325518
Anesthesiology physician in Orange, California. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1851325518 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** C128632 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of (NPI 1487602546, Orange, CA); Talbert Anesthesia Group Incorporated (NPI 1144626714, Los Alamitos, CA); Clarity Anesthesia Medical Group (NPI 1922533918, Foothill Ranch, CA); Socal Anesthesia Solutions, Inc (NPI 1407596901, Los Angeles, CA); Allied Anesthesia Medical Group Inc (CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** November 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1851325518) · Data from the CMS NPPES public registry.