Individual provider Active NPI

Dragos Diaconescu, M.D.

  • Anesthesiology Physician
  • Orange, CA
National Provider Identifier
1851325518
Registry record updated Nov 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
C128632 Issued in CA
Practice address
101 The City Dr S
Orange, CA 92868-3201
Phone
(714) 456-8888
NPI assigned
Jul 10, 2006
Last updated
Nov 7, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 7, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pain Medicine (Anesthesiology) Physician 207LP2900X C128632 CA
Anesthesiology Physician 207L00000X C128632 CA Primary

Addresses

Primary practice location

101 The City Dr S
Orange, CA 92868-3201

Mailing address

101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-8888

Other practice location 1

2409 Simplicity
Irvine, CA 92620-3811
Phone (617) 905-8380

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20140627002104 CA Practitioner - AnesthesiologyPractitioner - Pain Management 2466559521 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
AnesthesiologyAlso: Pain Management
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Regents of the University ofGroup PAC ID 8729983473, 236 clinicians
Socal Anesthesia Solutions IncGroup PAC ID 0042607426, 46 clinicians
Allied Anesthesia Medical Group IncGroup PAC ID 6103728407, 185 clinicians
Talbert Anesthesia Group IncorporatedGroup PAC ID 6406171461, 27 clinicians

Practice addresses (Care Compare)

101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7004

1400 S Grand Ave
Suite 700
Los Angeles, CA 90015-3068
Phone (213) 866-1900

16250 Sand Canyon Ave
Irvine, CA 92618-3714
Phone (855) 999-4641

24331 El Toro Rd
Suite 150
Laguna Woods, CA 92637-8818
Phone (949) 855-0562

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
227343MAMDClinical Social Worker
C128632CAMDPain Medicine (Anesthesiology) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Talbert Anesthesia Group Incorporated Anesthesiology CurrentSince Nov 1, 2025 Accepting new patients
Allied Anesthesia Medical Group Inc Anesthesiology CurrentSince Jul 27, 2022 Accepting new patients
Socal Anesthesia Solutions, Inc Anesthesiology CurrentSince Aug 1, 2023 Accepting new patients
Regents of the University of Anesthesiology CurrentSince Dec 15, 2025 Accepting new patients
Clarity Anesthesia Medical Group Anesthesiology CurrentSince Apr 12, 2017 Accepting new patients

Locations

1124 S Main St
Ste 101
Corona, CA 92882
Phone (951) 737-6363

18111 Brookhurst St
Fountain Vly, CA 92708
Phone (714) 369-1100

18111 Brookhurst St
Ste 3200
Fountain Vly, CA 92708
Phone (714) 369-1100

9920 Talbert Ave
Fountain Vly, CA 92708
Phone (714) 236-4000

7677 Center Ave
Ste 104
Huntington Beach, CA 92647
Phone (714) 881-8700

16250 Sand Canyon Ave
Irvine, CA 92618
Phone (855) 999-4641

19208 Jamboree Rd
Irvine, CA 92612
Phone (657) 579-3460

24331 El Toro Rd
Ste 150
Laguna Woods, CA 92637
Phone (949) 855-0562

27462 Portola Pkwy
Ste 100
Lake Forest, CA 92610
Phone (949) 280-6497

3747 Worsham Ave
Long Beach, CA 90808
Phone (562) 430-4513

10904 Reagan St
Los Alamitos, CA 90720
Phone (562) 592-3140

1400 S Grand Ave
Ste 700
Los Angeles, CA 90015
Phone (213) 765-7500

1401 S Grand Ave
Los Angeles, CA 90015
Phone (213) 742-5555

101 The City Dr S
Orange, CA 92868
Phone (714) 456-6054

455 S Main St
Orange, CA 92868
Phone (714) 289-4511

1301 N Rose Dr
Placentia, CA 92870
Phone (714) 524-4252

255 E Bonita Ave
Pomona, CA 91767
Phone (866) 724-4127

999 San Bernardino Rd
Upland, CA 91786
Phone (909) 920-4841

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1152489600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762473600000",
    "number": "1851325518",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2409 Simplicity",
            "address_purpose": "LOCATION",
            "city": "Irvine",
            "state": "CA",
            "postal_code": "926203811",
            "country_code": "US",
            "telephone_number": "617-905-8380",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIACONESCU",
        "first_name": "DRAGOS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-10",
        "last_updated": "2025-11-07",
        "certification_date": "2025-11-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "CA",
            "license": "C128632",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "C128632",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Orange, CA

Sources for this page

Verify at the official NPI Registry.