Active NPI
John N Slingerland, PA-C
- Physician Assistant
- Orange, CA
National Provider Identifier
1710592811
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 61973
- Practice address
- 1120 W la Veta Ave Ste 300
Orange, CA 92868-4246 - Phone
- (714) 598-1745
- NPI assigned
- Sep 15, 2020
- 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 |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 61973 | CA | Primary |
Addresses
Primary practice location
1120 W la Veta Ave Ste 300
Orange, CA 92868-4246
Mailing address
1120 W la Veta Ave Ste 300
Orange, CA 92868-4246
Phone (714) 598-1745
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: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2022
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1120 W la Veta Ave
Suite 300
Orange, CA 92868-4246
Phone (714) 598-1745
Hospital & facility affiliations
- Providence St. Joseph Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
Organizations & group practices 1
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.
-
- Orthopaedic Surgery Physician
- Orange, CA
- NPI 1013306174
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Orange, CA
- NPI 1912982216
-
- General Acute Care Hospital
- Orange, CA
- NPI 1558575746
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1600128000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778716800000",
"number": "1710592811",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1120 W LA VETA AVE STE 300",
"city": "ORANGE",
"state": "CA",
"postal_code": "928684246",
"telephone_number": "714-598-1745"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1120 W LA VETA AVE STE 300",
"city": "ORANGE",
"state": "CA",
"postal_code": "928684246",
"telephone_number": "714-598-1745"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SLINGERLAND",
"first_name": "JOHN",
"middle_name": "N",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-09-15",
"last_updated": "2026-05-14",
"certification_date": "2026-05-14",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "CA",
"license": "61973",
"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 May 14, 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.