Active NPI
Richard Allen Guerrero Jr., M.D.
- Surgery Physician
- Fountain Valley, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- A79327
- Practice address
- 11100 Warner Ave Ste 266
Fountain Valley, CA 92708-7512 - Phone
- (714) 617-4733
- Fax
- (714) 617-4748
- NPI assigned
- Jul 20, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Surgery Physician | 208600000X | A79327 | CA | Primary |
Addresses
Primary practice location
11100 Warner Ave Ste 266
Fountain Valley, CA 92708-7512
Mailing address
5267 Warner Ave
#322
Huntington Beach, CA 92649-4079
Phone (714) 617-4733
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
- General Surgery
- Education
- University of Southern California Keck School of Medicine, 2000
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
11100 Warner Ave
Suite 258
Fountain Valley, CA 92708-4011
74361 Hwy 111
Suite 5
Palm Desert, CA 92260-4125
Phone (760) 610-5573
Hospital & facility affiliations
- Uci Health-Orange
- Garden Grove Hospital & Medical Center
- Huntington Beach Hospital
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 1-10 |
| Hernia repair (minimally invasive) | 1-10 |
| Mastectomy | 1-10 |
| Coronary artery bypass graft (CABG) | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
| Varicose vein removal | 187 |
| Melanoma (skin cancer) excision | 1-10 |
| Removal of tissue | 39 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Orange Coast Memorial Medical Center | Past | Accepting new patients | |
| Central California Inpatient Physicians | Surgery | Past | Accepting new patients |
| Surgical Specialists a Medical Corporation | Surgery | Past | Accepting new patients |
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
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 and National Provider Directory roles.
-
- Surgery Physician
- Fountain Valley, CA
- NPI 1518112382
-
- Surgery Physician
- Napa, CA
- NPI 1255579421
-
- General Acute Care Hospital
- Fountain Valley, CA
- NPI 1497702575
-
- Surgery Physician
- Santa Maria, CA
- NPI 1235168337
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Huntington Beach, CA
- NPI 1083622120
-
- General Acute Care Hospital
- Garden Grove, CA
- NPI 1659538858
-
- 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": "1153353600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785456000000",
"number": "1891715835",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5267 WARNER AVE",
"address_2": "#322",
"city": "HUNTINGTON BEACH",
"state": "CA",
"postal_code": "926494079",
"telephone_number": "714-617-4733",
"fax_number": "714-617-4748"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11100 WARNER AVE STE 266",
"city": "FOUNTAIN VALLEY",
"state": "CA",
"postal_code": "927087512",
"telephone_number": "714-617-4733",
"fax_number": "714-617-4748"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GUERRERO",
"first_name": "RICHARD",
"middle_name": "ALLEN",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-07-20",
"last_updated": "2026-07-31",
"certification_date": "2026-07-31",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "CA",
"license": "A79327",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fountain Valley, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 31, 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.