Active NPI
Mahsa Nashid, MD
- Family Medicine Physician
- Orange, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- A146094
- Practice address
- 101 The City Dr S
Orange, CA 92868-3201 - Phone
- (714) 456-8888
- NPI assigned
- Jun 27, 2013
- Last updated
- Jul 29, 2026
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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, CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Other, 2005
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Southwest Suffolk Medical, P.C. | Current | Accepting new patients | |
| Hospitalist Medicine Physicians of California, Inc | Family Medicine | Current | Accepting new patients |
| Acute Care Associates of California PC | Family Medicine | Current | Accepting new patients |
| Southwest Suffolk Medical PC | Family Medicine | Current | Accepting new patients |
| Inpatient Specialists of California, PC | Family Medicine | Current | 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.
-
- Internal Medicine Physician
- Wildomar, CA
- NPI 1194588392
Family Medicine
-
- Internal Medicine Physician
- Apple Valley, CA
- NPI 1184663965
Family Medicine
-
dba UC Irvine Hospitalist Program
- Hospitalist Physician
- Orange, CA
- NPI 1154479723
-
- Internal Medicine Physician
- San Bernardino, CA
- NPI 1952792475
Family Medicine
-
- Surgical Oncology Physician
- Smithtown, NY
- NPI 1104096049
-
dba Samaritan Primary Care
- Family Medicine Physician
- Lindenhurst, NY
- NPI 1770919763
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Palmdale Regional Medical Center
- General Acute Care Hospital
- Palmdale, CA
- NPI 1508856535
-
dba Providence St. Mary Medical Center
- Advanced Practice Midwife
- Apple Valley, CA
- NPI 1043406440
Hospital
-
dba Providence St. Mary Medical Center
- General Acute Care Hospital
- Apple Valley, CA
- NPI 1669456299
-
dba Providence St. Mary Medical Center
- General Acute Care Hospital
- Apple Valley, CA
- NPI 1710109186
-
dba University of California Irvine - Cac Urgent Care
- Urgent Care Clinic/Center
- Irvine, CA
- NPI 1518739309
Hospital
-
dba Uci Health
- General Acute Care Hospital
- Orange, CA
- NPI 1689608150
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.