NPIMap

Individual provider Active NPI

Mark Evans Fleming, DO

  • Orthopaedic Trauma Physician
  • Los Angeles, CA
National Provider Identifier
1881638583
Registry record updated Sep 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Trauma PhysicianTaxonomy code 207XX0801X
License
14334 Issued in CA
Practice address
1200 N State St
Los Angeles, CA 90089-1001
Phone
(301) 956-0583
NPI assigned
Jun 15, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 12, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Trauma Physician 207XX0801X 14334 CA Primary

Addresses

Primary practice location

1200 N State St
Los Angeles, CA 90089-1001

Mailing address

225 S Grand Ave Apt 1801
Los Angeles, CA 90012-4433
Phone (301) 956-0583

Other practice location 1

18523 Corwin Rd Ste A
Apple Valley, CA 92307-2300
Phone (909) 712-2764

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20220106002693 MA Practitioner - Orthopedic Surgery 8426061128 Reassigns benefits to 2 organizations
I20260430004118 CA Practitioner - Orthopedic Surgery 8426061128 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Paul J Wisniewski DO IncGroup PAC ID 5092240606, 19 clinicians

Practice addresses (Care Compare)

18523 Corwin Rd
Suite a
Apple Valley, CA 92307-2300
Phone (407) 335-6950

Hospital & facility affiliations

  • Los Angeles General Medical Center Hospital, Los Angeles, CA, CCN 050373
  • Providence St Mary Medical Center Hospital, Apple Valley, CA, CCN 050300

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Nov 1, 2021 Accepting new patients
Massachusetts General Physicians Organization Inc Orthopaedic Surgery CurrentSince Nov 1, 2021 Accepting new patients
Memorial Hospital and Medical Center of Cumberland, Inc. Past Accepting new patients
Scott Watkins MD PC Past Accepting new patients
Upmc Western Maryland Health Services, LLC Past Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 6

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 4

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": "1150329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757635200000",
    "number": "1881638583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "225 S GRAND AVE APT 1801",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900124433",
            "telephone_number": "301-956-0583"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 N STATE ST",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900891001",
            "telephone_number": "301-956-0583"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "18523 Corwin Rd Ste A",
            "address_purpose": "LOCATION",
            "city": "Apple Valley",
            "state": "CA",
            "postal_code": "923072300",
            "country_code": "US",
            "telephone_number": "909-712-2764",
            "fax_number": "909-752-8719",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLEMING",
        "first_name": "MARK",
        "middle_name": "EVANS",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-15",
        "last_updated": "2025-09-12",
        "certification_date": "2025-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "CA",
            "license": "14334",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.