NPIMap

Individual provider Active NPI

Youssef Y. Yassa, MD

  • Anesthesiology Physician
  • Springfield, MO
National Provider Identifier
1124163282
Registry record updated Nov 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
2002019269 Issued in MO
Practice address
1235 E Cherokee St
Springfield, MO 65804-2203
Phone
(417) 820-2829
Fax
(417) 820-8852
NPI assigned
Feb 20, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 13, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 2002019269 MO Primary

Addresses

Primary practice location

1235 E Cherokee St
Springfield, MO 65804-2203

Mailing address

PO Box 2580
Springfield, MO 65801-2580
Phone (417) 829-4620

Other practice location 1

525 Branson Landing Blvd
Branson, MO 65616-2052
Phone (000) 000-0000

Other identifiers 3

IdentifierTypeStateIssuer
148766001MedicaidAR
99372OtherMOAR BLUE SHIELD #
205891302MedicaidMO

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100804000994 MO Practitioner - Anesthesiology 7214060722 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
JC Edwards School of Medicine, Marshall University, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Clinic Springfield CommunitiesGroup PAC ID 7416865845, shared by 26 NPIs, 1,121 clinicians

Practice addresses (Care Compare)

1229 E Seminole
230 MC Pulmonology ASC
Springfield, MO 65804-2227
Phone (417) 888-6711

1229 E Seminole St
Springfield, MO 65804-2227

1229 E Seminole St FL
2 MC Spine Orthopedics Springfield
Springfield, MO 65804-2227
Phone (417) 820-2064

1235 E Cherokee St
Springfield, MO 65804-2203

1605 Martin Springs Dr
Rolla, MO 65401-2980

2115 S Fremont Ave
3050 MC Infectious Disease Whiteside
Springfield, MO 65804-2236
Phone (417) 820-3905

3045 S National Ave
Springfield, MO 65804-4268

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
2002019269MOMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Clinic Springfield Communities CurrentSince Aug 7, 2002 Accepting new patients
Mercy Clinic Springfield Communities CurrentSince Aug 7, 2002 Accepting new patients
Lester E Cox Medical Centers CurrentSince Nov 24, 2025 Accepting new patients
Mercy Clinic Springfield Communities CurrentSince Aug 1, 2013 Accepting new patients
Resource Anesthesiology Associates of Mo LLC Anesthesiology CurrentSince Nov 1, 2016 Accepting new patients
Clinton Anesthesia Associates Inc. Past Accepting new patients

Locations

1605 Martin Springs Dr
Rolla, MO 65401
Phone (573) 458-6379

1605 Martin Springs Dr
Ste 330
Rolla, MO 65401
Phone (573) 458-6379

1008 N Main St
Sikeston, MO 63801
Phone (573) 471-1600

620 S Glenstone Ave
Springfield, MO 65802
Phone (417) 829-4215

2115 S Fremont Ave
Ste 3050
Springfield, MO 65804
Phone (417) 820-3905

1235 E Cherokee St
Springfield, MO 65804
Phone (417) 820-2115

Organizations & group practices 8

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

Hospital & facility affiliations 10

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": "1171929600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762992000000",
    "number": "1124163282",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2580",
            "city": "SPRINGFIELD",
            "state": "MO",
            "postal_code": "658012580",
            "telephone_number": "417-829-4620",
            "fax_number": "417-829-4264"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1235 E CHEROKEE ST",
            "city": "SPRINGFIELD",
            "state": "MO",
            "postal_code": "658042203",
            "telephone_number": "417-820-2829",
            "fax_number": "417-820-8852"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "525 Branson Landing Blvd",
            "address_purpose": "LOCATION",
            "city": "Branson",
            "state": "MO",
            "postal_code": "656162052",
            "country_code": "US",
            "telephone_number": "000-000-0000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YASSA",
        "first_name": "YOUSSEF",
        "middle_name": "Y.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-20",
        "last_updated": "2025-11-13",
        "certification_date": "2025-11-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MO",
            "license": "2002019269",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "148766001",
            "state": "AR"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AR BLUE SHIELD #",
            "identifier": "99372",
            "state": "MO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "205891302",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Springfield, MO

Sources for this page

Verify at the official NPI Registry.