NPIMap

Individual provider Active NPI

Robert Sexton Kollen, M.D

  • Emergency Medicine Physician
  • Colton, CA
National Provider Identifier
1073554531
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
C33600 Issued in CA
Practice address
400 N. Pepper Avenue
Colton, CA 92324
Phone
(909) 580-1400
NPI assigned
Jun 8, 2006
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X C33600 CA Primary

Addresses

Primary practice location

400 N. Pepper Avenue
Colton, CA 92324

Mailing address

2100 Powell Street
Ste 920
Emeryville, CA 94608-1803
Phone (510) 350-2777

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050801000906 CA Practitioner - Emergency MedicinePractitioner - Internal Medicine 3476581307 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency MedicineAlso: Internal Medicine
Education
University of Minnesota Medical School, 1969
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

173 E Webster St
Colusa, CA 95932-2949
Phone (209) 287-6308

741 N Main St
Cedarville, CA 96104-0246

PO Box
Suite 246
Cedarville, CA 96104

PO Box
Suite 246
Cedarville, CA 96104-0246

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
33600CAMDMental Health Counselor
C33600CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine Current Accepting new patients
Surprise Valley Health Care District CurrentSince Oct 14, 2020 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Dec 1, 2008 Accepting new patients
American Specialty Physicians Group Inc Emergency Medicine CurrentSince Feb 1, 2024 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Dec 1, 2008 Accepting new patients
Surprise Valley Health Care District CurrentSince Oct 14, 2020 Accepting new patients
Grand Avenue Emergency Physicians Medical Group Inc Emergency Medicine CurrentSince Feb 7, 2018 Accepting new patients
Surprise Valley Health Care District Past Accepting new patients

Locations

2215 Truxtun Ave
Bakersfield, CA 93301
Phone (661) 477-9283

751 Medical Center Ct
#1182
Chula Vista, CA 91911

2755 Herndon Ave
Clovis, CA 93611
Phone (559) 323-4000

1191 Phelps Ave
Coalinga, CA 93210
Phone (559) 897-5841

400 N Pepper Ave
Colton, CA 92324
Phone (909) 580-1400

151 E Webster St
Ste B
Colusa, CA 95932
Phone (209) 287-6308

1250 E Almond Ave
Madera, CA 93637
Phone (559) 675-5501

1205 E North St
Manteca, CA 95336
Phone (209) 239-8301

1441 Florida Ave
Modesto, CA 95350
Phone (209) 214-7235

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 350-2663

700 17th St
Ste 205
Modesto, CA 95354
Phone (209) 248-7851

4445 Magnolia Ave
Riverside, CA 92501
Phone (800) 498-7156

869 N Cherry St
Tulare, CA 93274
Phone (559) 326-2800

Interoperability endpoints

  • FHIR API: https://fhir-usa.unify.chbase.com/org/survalh-86281d9a

Organizations & group practices 8

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.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1149724800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1073554531",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 POWELL STREET",
            "address_2": "STE 920",
            "city": "EMERYVILLE",
            "state": "CA",
            "postal_code": "946081803",
            "telephone_number": "510-350-2777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 N. PEPPER AVENUE",
            "city": "COLTON",
            "state": "CA",
            "postal_code": "92324",
            "telephone_number": "909-580-1400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOLLEN",
        "first_name": "ROBERT",
        "middle_name": "SEXTON",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-08",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "C33600",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Colton, CA

Sources for this page

Verify at the official NPI Registry.