Individual provider Active NPI

Mahsa Nashid, MD

  • Family Medicine Physician
  • Orange, CA
National Provider Identifier
1558701102
Registry record updated Jul 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
A146094 Issued in CA
Practice address
101 The City Dr S
Orange, CA 92868-3201
Phone
(714) 456-8888
NPI assigned
Jun 27, 2013
Last updated
Jul 29, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 29, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 285258 NY
Hospitalist Physician 208M00000X A146094 CA
Family Medicine Physician 207Q00000X A146094 CA Primary

Addresses

Primary practice location

101 The City Dr S
Orange, CA 92868-3201

Mailing address

1276 Fulton Ave
Bronx, NY 10456-3402
Phone (718) 901-8297

Other practice location 1

149 Avalon Cir
Smithtown, NY 11787-3871
Phone (901) 335-5960

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, CA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20171117000746 NY Practitioner - HospitalistPractitioner - Family Practice 4587920913 Reassigns benefits to 1 organization
I20220810003394 CA Practitioner - Family PracticePractitioner - Hospitalist 4587920913 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family PracticeAlso: Hospitalist
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Regents of the University of California-IrvineGroup PAC ID 3971609611, 116 clinicians
Hospitalist Medicine Physicians of California IncGroup PAC ID 8426062027, 120 clinicians
Acute Care Associates of California PCGroup PAC ID 2668812215, 55 clinicians

Practice addresses (Care Compare)

101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7890

18300 US Hwy 18
Apple Valley, CA 92307-2206
Phone (760) 242-2311

38600 Medical Ctr Dr
Palmdale, CA 93551-4483
Phone (951) 696-6000

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Southwest Suffolk Medical, P.C. CurrentSince Sep 26, 2017 Accepting new patients
Hospitalist Medicine Physicians of California, Inc Family Medicine CurrentSince Oct 1, 2023 Accepting new patients
Acute Care Associates of California PC Family Medicine CurrentSince Jan 7, 2025 Accepting new patients
Southwest Suffolk Medical PC Family Medicine CurrentSince Sep 26, 2017 Accepting new patients
Inpatient Specialists of California, PC Family Medicine CurrentSince Jul 16, 2023 Accepting new patients

Locations

18300 US Highway 18
Apple Valley, CA 92307
Phone (760) 424-2311

2309 Antonio Ave
Camarillo, CA 93010
Phone (805) 389-5655

1600 N Rose Ave
Oxnard, CA 93030
Phone (805) 988-2500

38600 Medical Center Dr
Palmdale, CA 93551
Phone (661) 382-5000

215 W Janss Rd
Thousand Oaks, CA 91360
Phone (805) 379-5435

36485 Inland Valley Dr
Wildomar, CA 92595
Phone (909) 677-9778

245 Old Country Rd
Melville, NY 11747
Phone (631) 465-6141

48 Route 25A
Smithtown, NY 11787
Phone (631) 862-3540

50 Route 25A
Smithtown, NY 11787
Phone (631) 465-6225

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 6

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": "1372291200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1558701102",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1276 FULTON AVE",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104563402",
            "telephone_number": "718-901-8297"
        },
        {
            "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": "149 Avalon Cir",
            "address_purpose": "LOCATION",
            "city": "Smithtown",
            "state": "NY",
            "postal_code": "117873871",
            "country_code": "US",
            "telephone_number": "901-335-5960",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NASHID",
        "first_name": "MAHSA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2013-06-27",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "285258",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A146094",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A146094",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Orange, CA

Sources for this page

Verify at the official NPI Registry.