Active NPI
Richard Chyan, MD
- Physical Medicine & Rehabilitation Physician
- Tustin, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physical Medicine & Rehabilitation Physician
- License
- A163678
- Practice address
- 13522 Newport Ave Ste 102
Tustin, CA 92780-3707 - Phone
- (714) 987-1211
- Fax
- (551) 236-2481
- NPI assigned
- May 9, 2018
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physical Medicine & Rehabilitation Physician | 208100000X | A163678 | CA | Primary |
Addresses
Primary practice location
13522 Newport Ave Ste 102
Tustin, CA 92780-3707
Mailing address
PO Box 5532
Irvine, CA 92616-5532
Phone (714) 987-1211
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
- Physical Medicine and Rehabilitation
- Education
- Loma Linda University School of Medicine, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1010 W la Veta Ave
Orange, CA 92868-4300
Phone (714) 869-7487
Hospital & facility affiliations
- Providence St. Jude Medical Center
- St Mary Medical Center
- St. Jude Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 18.93 of 100
- Quality
- 0
- Improvement activities
- 0
- Cost
- 63.1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A163678 | CA | MD | Physical Medicine & Rehabilitation Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Orca Rehab Inc | Physical Medicine & Rehabilitation | Current | Accepting new patients |
| Amirpasha Ehsan MD, Inc | Physical Medicine & Rehabilitation | Past | Accepting new patients |
Locations
101 E Valencia Mesa Dr
Fullerton, CA 92835
Phone (714) 446-7505
1010 W La Veta Ave
Orange, CA 92868
Phone (714) 221-1200
1100 W Stewart Dr
Orange, CA 92868
Phone (714) 532-8620
4070 Jurupa Ave
Riverside, CA 92506
Phone (949) 239-4410
13522 Newport Ave
Ste 102
Tustin, CA 92780
Phone (714) 573-8200
Organizations & group practices 2
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.
-
- Physical Medicine & Rehabilitation Physician
- Tustin, CA
- NPI 1952046963
-
- Physical Medicine & Rehabilitation Physician
- Irvine, CA
- NPI 1164813788
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Long Beach, CA
- NPI 1194840421
-
- General Acute Care Hospital
- Fullerton, CA
- NPI 1194926279
-
- General Acute Care Hospital
- Brea, CA
- NPI 1891904942
-
- Rehabilitation Hospital
- Fullerton, CA
- NPI 1942404165
Inpatient rehabilitation facility
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1525824000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752624000000",
"number": "1013406628",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 5532",
"city": "IRVINE",
"state": "CA",
"postal_code": "926165532",
"telephone_number": "714-987-1211"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "13522 NEWPORT AVE STE 102",
"city": "TUSTIN",
"state": "CA",
"postal_code": "927803707",
"telephone_number": "714-987-1211",
"fax_number": "551-236-2481"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHYAN",
"first_name": "RICHARD",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2018-05-09",
"last_updated": "2025-07-16",
"certification_date": "2025-07-16",
"status": "A"
},
"taxonomies": [
{
"code": "208100000X",
"taxonomy_group": "",
"desc": "Physical Medicine & Rehabilitation",
"state": "CA",
"license": "A163678",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Tustin, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 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.