Active NPI
Hassan Hashm
- Pulmonary Disease Physician
- Orange, CA
National Provider Identifier
1528589405
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pulmonary Disease Physician
- License
- 20A22584
- Practice address
- 101 The City Dr S
Orange, CA 92868-3201 - Phone
- (800) 465-3203
- NPI assigned
- Jun 30, 2017
- Last updated
- Jan 27, 2026
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 20A22584 | CA | |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 20A22584 | CA | |
| Pulmonary Disease Physician | 207RP1001X | 20A22584 | 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 (800) 465-3203
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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Critical Care (Intensivists)
- Education
- Alabama College of Osteopathic Medicine, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7004
136 Broadway
Costa Mesa, CA 92627-2818
Phone (949) 873-5537
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 22584 | CA | MD | Addiction (Substance Use Disorder) Counselor |
| 20A22584 | CA | MD | Critical Care Medicine (Internal Medicine) Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Montefiore Medical Center | Internal Medicine | Current | Accepting new patients |
| Prestige Pulmonary Consultants Inc | Critical Care Medicine | Current | Accepting new patients |
| UC Regents | Pulmonary Disease | Current | Accepting new patients |
| Mesa Pulmonary Group, Inc. | Internal Medicine | Current | Accepting new patients |
Locations
136 Broadway
Costa Mesa, CA 92627
Phone (949) 288-5377
500 N Garfield Ave
Ste 204
Monterey Park, CA 91754
Phone (626) 280-4393
101 The City Dr S
Orange, CA 92868
Phone (714) 456-6054
111 E 210th St
Bronx, NY 10467
100 Corporate Dr
Ste 100
Yonkers, NY 10701
Phone (914) 378-6148
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- hhashm905320@direct.memorialcare.org
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.
-
- Pulmonary Disease Physician
- Costa Mesa, CA
- NPI 1821610874
Internal Medicine
-
- Critical Care Medicine (Internal Medicine) Physician
- Monterey Park, CA
- NPI 1295370351
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Newport Beach, CA
- NPI 1518951300
-
- General Acute Care Hospital
- Laguna Hills, CA
- NPI 1275576381
-
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": "1498780800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1769472000000",
"number": "1528589405",
"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": "800-465-3203"
},
{
"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": "800-465-3203"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HASHM",
"first_name": "HASSAN",
"name_prefix": "Dr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-06-30",
"last_updated": "2026-01-27",
"certification_date": "2026-01-27",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CA",
"license": "20A22584",
"primary": false
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "CA",
"license": "20A22584",
"primary": false
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "CA",
"license": "20A22584",
"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 Jan 27, 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.