Active NPI
Peter F Keenan III, MD
- Emergency Medicine Physician
- Los Alamitos, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 140040
- Practice address
- 3751 Katella Ave
Los Alamitos, CA 90720-3113 - Phone
- (562) 598-1311
- NPI assigned
- May 24, 2011
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | Q3901 | TX | |
| Emergency Medicine Physician | 207P00000X | 140040 | CA | Primary |
Addresses
Primary practice location
3751 Katella Ave
Los Alamitos, CA 90720-3113
Mailing address
Los Alamitos Medical Center Emergency Department
3751 Katella Ave
Los Alamitos, CA 90720
Phone (562) 598-1311
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
- Emergency Medicine
- Education
- Boston University School of Medicine, 2011
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7004
Hospital & facility affiliations
- Uci Health-Orange
- Uci Health-Lakewood
Merit-based Incentive Payment System (MIPS)
- Final score
- 96.69 of 100
- Quality
- 90
- Improvement activities
- 40
- Cost
- 78.43
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 140040 | CA | MD | Marriage & Family Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Regents of the University of | Emergency Medicine | Current | Accepting new patients |
| Cep America-California | Emergency Medicine | Current | Accepting new patients |
| Michael S. Agron, M.D., Inc. | Emergency Medicine | Current | Accepting new patients |
| American Current Care of California, a Medical Corporation | Current | Accepting new patients | |
| American Current Care of California, a Medical Corporation | Current | Accepting new patients | |
| Cep America - California | Emergency Medicine | Current | Accepting new patients |
| Golden State Emergency Physicians Inc | Emergency Medicine | Current | Accepting new patients |
| American Current Care of California, a Medical Corporation | Current | Accepting new patients | |
| Cep America - California | Emergency Medicine | Current | Accepting new patients |
| Glass Beach Medical Services a Medical Corporation | Emergency Medicine | Past | Accepting new patients |
| Maimonides Medical Center - MMC Emergency Physicians FPP | Emergency Medicine | Past | Accepting new patients |
| University of California Irvine | Past | Accepting new patients |
Locations (25 of 26)
300 W Huntington Dr
Arcadia, CA 91007
Phone (626) 445-4441
1800 Westwind Dr
Ste 301
Bakersfield, CA 93301
Phone (661) 327-9617
15302 El Prado Rd
Chino, CA 91710
Phone (909) 393-7222
751 Medical Center Ct
#1182
Chula Vista, CA 91911
2555 S East Ave
Fresno, CA 93706
Phone (559) 499-2400
3700 South St
Lakewood, CA 90712
Phone (562) 424-2900
3751 Katella Ave
Los Alamitos, CA 90720
Phone (562) 799-3160
1401 S Grand Ave
Los Angeles, CA 90015
Phone (213) 742-5555
1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423
1340 Mitchell Rd
Modesto, CA 95351
Phone (209) 581-9711
25115 Madison Ave
Murrieta, CA 92562
Phone (951) 600-9070
1101 S Milliken Ave
Ste C
Ontario, CA 91761
Phone (909) 390-2799
101 The City Dr S
Orange, CA 92868
Phone (714) 456-6054
1851 Lombard St
Ste 100
Oxnard, CA 93030
Phone (805) 983-2234
640 S Placentia Ave
Placentia, CA 92870
Phone (714) 579-7772
15031 Rinaldi St
San Fernando, CA 91345
Phone (818) 365-8051
2 Connecticut St
San Francisco, CA 94107
Phone (415) 621-5055
2587 Merced St
San Leandro, CA 94577
Phone (510) 351-3553
740 Nordahl Rd
Ste 131
San Marcos, CA 92069
Phone (760) 432-9000
800 N Tustin Ave
Ste A
Santa Ana, CA 92705
Phone (714) 245-0800
988 Walsh Ave
Santa Clara, CA 95050
Phone (408) 988-6868
1221 N Dutton Ave
Santa Rosa, CA 95401
Phone (707) 543-8360
3 S Linden Ave
South San Francisco, CA 94080
Phone (650) 238-1500
3663 Arch Rd
Ste 400
Stockton, CA 95215
Phone (209) 943-2202
21081 S Western Ave
Ste 150
Torrance, CA 90501
Phone (310) 782-3333
Organizations & group practices 12
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.
-
- Emergency Medicine Physician
- Orange, CA
- NPI 1154379394
-
- Clinic/Center
- Los Angeles, CA
- NPI 1750573622
-
- Emergency Medicine Physician
- Santa Ana, CA
- NPI 1548667843
-
- Emergency Medicine Physician
- Los Angeles, CA
- NPI 1770886558
-
- Emergency Medicine Physician
- Arcadia, CA
- NPI 1699716100
-
- Urgent Care Clinic/Center
- Rocklin, CA
- NPI 1598232761
-
- Urgent Care Clinic/Center
- Ontario, CA
- NPI 1811464084
-
- Emergency Medicine Physician
- Valencia, CA
- NPI 1710686035
-
- Emergency Medicine Physician
- Murrieta, CA
- NPI 1588552848
-
- Emergency Medicine Physician
- San Ramon, CA
- NPI 1710336300
-
- Infusion Therapy Clinic/Center
- Irvine, CA
- NPI 1417027475
-
- Emergency Medicine Physician
- Brooklyn, NY
- NPI 1982708202
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Lakewood, CA
- NPI 1184655581
-
- 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": "1306195200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1742947200000",
"number": "1699068601",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "LOS ALAMITOS MEDICAL CENTER EMERGENCY DEPARTMENT",
"address_2": "3751 KATELLA AVE",
"city": "LOS ALAMITOS",
"state": "CA",
"postal_code": "90720",
"telephone_number": "562-598-1311"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3751 KATELLA AVE",
"city": "LOS ALAMITOS",
"state": "CA",
"postal_code": "907203113",
"telephone_number": "562-598-1311"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KEENAN",
"first_name": "PETER",
"middle_name": "F",
"name_prefix": "Dr.",
"name_suffix": "III",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-05-24",
"last_updated": "2025-03-26",
"certification_date": "2025-03-26",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "TX",
"license": "Q3901",
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "CA",
"license": "140040",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Los Alamitos, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 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.