Active NPI
Michael Richard Kahn, MD
- Critical Care Medicine (Internal Medicine) Physician
- Irvine, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Critical Care Medicine (Internal Medicine) Physician
- License
- A164953
- Practice address
- 1000 Fivepoint Ste a
Irvine, CA 92618-2377 - Phone
- (888) 333-4673
- NPI assigned
- Apr 15, 2018
- Sex
- Male
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | A164953 | CA | |
| Pulmonary Disease Physician | 207RP1001X | A164953 | CA | |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | A164953 | CA | Primary |
Addresses
Primary practice location
1000 Fivepoint Ste a
Irvine, CA 92618-2377
Mailing address
PO Box 512185
Los Angeles, CA 90051-0185
Other practice location 1
1500 Duarte Rd
Duarte, CA 91010-3012
Phone (800) 826-4673
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | direct@cityofhope.direct-ci.com | Direct | CITY OF HOPE MEDICAL FOUNDATION |
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
- Internal Medicine
- Education
- George Washington University School of Medicine, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1000 Fivepoint
Irvine, CA 92618-2377
Phone (949) 671-4673
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A164953 | CA | MD | Critical Care Medicine (Internal Medicine) Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| City of Hope Medical Foundation | Pulmonary Disease | Current | Accepting new patients |
| County of Los Angeles | Current | Accepting new patients | |
| County of Los Angeles | Current | Accepting new patients |
Locations
1500 Duarte Rd
Duarte, CA 91010
Phone (626) 359-8111
1000 Fivepoint
#1000A
Irvine, CA 92618
Phone (949) 671-4673
1000 Fivepoint
Ste A
Irvine, CA 92618
Phone (888) 333-4673
1000 Fivepoint
Irvine, CA 92618
Phone (888) 333-4673
1601 Avocado Ave
Newport Beach, CA 92660
Phone (949) 763-2204
209 Fair Oaks Ave
South Pasadena, CA 91030
Phone (626) 359-8111
14445 Olive View Dr
Rm 2B118
Sylmar, CA 91342
14445 Olive View Dr
Sylmar, CA 91342
Phone (881) 836-4303
Interoperability endpoints
- mkahn269826@cityofhope.direct-ci.com
- direct@cityofhope.direct-ci.com
Organizations & group practices 3
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.
-
- Hematology & Oncology Physician
- Duarte, CA
- NPI 1871886366
Pulmonary Disease
-
- General Acute Care Hospital
- Torrance, CA
- NPI 1851363188
-
- Clinic/Center
- Los Angeles, CA
- NPI 1295407401
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Duarte, CA
- NPI 1750358297
-
- General Acute Care Hospital
- Los Angeles, CA
- NPI 1598773715
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1523750400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752710400000",
"number": "1245727320",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 512185",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900510185"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1000 FIVEPOINT STE A",
"city": "IRVINE",
"state": "CA",
"postal_code": "926182377",
"telephone_number": "888-333-4673"
}
],
"practiceLocations": [
{
"address_1": "1500 Duarte Rd",
"address_purpose": "LOCATION",
"city": "Duarte",
"state": "CA",
"postal_code": "910103012",
"country_code": "US",
"telephone_number": "800-826-4673",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KAHN",
"first_name": "MICHAEL",
"middle_name": "RICHARD",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2018-04-15",
"last_updated": "2025-07-17",
"certification_date": "2025-07-17",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CA",
"license": "A164953",
"primary": false
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "CA",
"license": "A164953",
"primary": false
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "CA",
"license": "A164953",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "direct@cityofhope.direct-ci.com",
"affiliation": "Y",
"affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "1000 Fivepoint Ste A",
"city": "Irvine",
"state": "CA",
"country_code": "US",
"postal_code": "926182377",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Irvine, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 2025; 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.