Active NPI
John Sanford Cross III, M.D.
- Anesthesiology Physician
- Orange, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- G78540
- Practice address
- 1100 W Stewart Dr
Orange, CA 92868-3849 - Phone
- (714) 633-9111
- Fax
- (714) 744-8695
- NPI assigned
- Jul 24, 2006
- Last updated
- Nov 23, 2025
- 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 |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | G78540 | CA | Primary |
Addresses
Primary practice location
1100 W Stewart Dr
Orange, CA 92868-3849
Mailing address
PO Box 548
Hermosa Beach, CA 90254-0548
Phone (714) 619-4730
Other practice location 1
100 Woods Rd
Valhalla, NY 10595-1530
Phone (914) 493-7000
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00G785400 | Other | CA | BLUE SHIELD |
| 00G785400 | Medicaid | CA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA, NY
- 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
- Anesthesiology
- Education
- University of Missouri, Columbia School of Medicine, 1992
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
100 Woods Rd
Valhalla, NY 10595-1530
1100 W Stewart Dr
Orange, CA 92868-3849
Phone (714) 744-8700
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G78540 | CA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| South Bay Anesthesia Medical Group Inc. | Anesthesiology | Current | Accepting new patients |
| Allied Anesthesia Medical Group Inc | Anesthesiology | Current | Accepting new patients |
| Westchester Medical Center Advanced Physician Services PC | Anesthesiology | Current | Accepting new patients |
Locations
1100 W Stewart Dr
Orange, CA 92868
Phone (714) 532-8620
455 S Main St
Orange, CA 92868
Phone (714) 289-4511
1798 N Garey Ave
Pomona, CA 91767
Phone (909) 865-9810
255 E Bonita Ave
Pomona, CA 91767
Phone (866) 724-4127
4101 Torrance Blvd
Torrance, CA 90503
Phone (310) 540-7676
100 Woods Rd
Valhalla, NY 10595
Phone (914) 490-7000
Organizations & group practices 4
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.
-
- Anesthesiology Physician
- Orange, CA
- NPI 1346267267
-
- Surgery Physician
- Valhalla, NY
- NPI 1912131392
-
- Anesthesiology Physician
- Torrance, CA
- NPI 1073531836
-
- Anesthesiology Physician
- Valhalla, NY
- NPI 1740687458
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Providence St. Joseph Hospital
- General Acute Care Hospital
- Orange, CA
- NPI 1912982216
-
dba Providence St. Joseph Hospital
- General Acute Care Hospital
- Orange, CA
- NPI 1558575746
-
dba Westchester Medical Center
- General Acute Care Hospital
- Valhalla, NY
- NPI 1932280666
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153699200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763856000000",
"number": "1538181755",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 548",
"city": "HERMOSA BEACH",
"state": "CA",
"postal_code": "902540548",
"telephone_number": "714-619-4730",
"fax_number": "714-560-1585"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1100 W STEWART DR",
"city": "ORANGE",
"state": "CA",
"postal_code": "928683849",
"telephone_number": "714-633-9111",
"fax_number": "714-744-8695"
}
],
"practiceLocations": [
{
"address_1": "100 Woods Rd",
"address_purpose": "LOCATION",
"city": "Valhalla",
"state": "NY",
"postal_code": "105951530",
"country_code": "US",
"telephone_number": "914-493-7000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CROSS",
"first_name": "JOHN",
"middle_name": "SANFORD",
"name_suffix": "III",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-24",
"last_updated": "2025-11-23",
"certification_date": "2025-11-23",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "CA",
"license": "G78540",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BLUE SHIELD",
"identifier": "00G785400",
"state": "CA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "00G785400",
"state": "CA"
}
],
"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 Nov 23, 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.