Individual provider Active NPI

Deron Theodore Warren, D.O.

  • Emergency Medicine Physician
  • Mariposa, CA
National Provider Identifier
1962491670
Registry record updated Dec 14, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
20A10992 Issued in CA
Practice address
5189 Hospital Rd
Mariposa, CA 95338-9524
Phone
(209) 966-3631
NPI assigned
Oct 14, 2005
Sex
Male
Sole proprietor
No

Organizations & group practices 10

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.

Hospital & facility affiliations 1

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

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Pacific Redwood Medical Group Inc 58 clinicians
Carbon Health Medical Group of California PC 335 clinicians

Practice addresses (Care Compare)

1 Marcela Dr
Willits, CA 95490-5769
Phone (707) 994-6486

1390 Market St
Suite 109
San Francisco, CA 94102-5403
Phone (415) 918-5766

2131 Irving St
San Francisco, CA 94122-1609
Phone (415) 231-2546

Hospital & facility affiliations

  • Adventist Health St Helena Hospital, Saint Helena, CA, CCN 050013

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
94.76
Improvement activities
40

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, HI2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20151112001812 CA Practitioner - Emergency Medicine 1355658741 Reassigns benefits to 4 organizations
I20200402002378 HI Practitioner - Emergency Medicine 1355658741 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
20A10992CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Team Physicians of California Medical Group Inc Emergency Medicine CurrentSince Feb 15, 2016 Accepting new patients
Sierra ER Department Physicians Medical Group Inc. Emergency Medicine CurrentSince Sep 12, 2016 Accepting new patients
Carbon Health Medical Group of California PC CurrentSince Oct 19, 2025 Accepting new patients
Hawaii Emergency Physicians Associated Inc Emergency Medicine CurrentSince Apr 6, 2020 Accepting new patients
Pacific Redwood Medical Group Inc Emergency Medicine CurrentSince May 5, 2024 Accepting new patients
Acute Medical Providers - Inpatient Inc. Past Accepting new patients
Central California Radiology Associates Inc Past Accepting new patients
Sierra Rural Physicians, Inc. Emergency Medicine Past Accepting new patients
Carbon Health Medical Group of California PC Past Accepting new patients
Carbon Health Primary Care of California PC PastSince Jul 20, 2025 Accepting new patients

Locations

2690 5th St
Ste B
Alameda, CA 94501
Phone (510) 439-9447

7330 El Camino Real
Atascadero, CA 93422
Phone (805) 703-2501

1760 S Bascom Ave
Ste 140
Campbell, CA 95008
Phone (408) 214-9732

6971 El Camino Real
Ste 101
Carlsbad, CA 92009
Phone (760) 258-4971

4156 Manzanita Ave
Ste 100
Carmichael, CA 95608
Phone (916) 483-5400

11971 Central Ave
Ste B
Chino, CA 91710
Phone (909) 310-1488

15630 18th Ave
Clearlake, CA 95422
Phone (707) 995-5820

3955 Bedford Canyon Rd
Unit 103
Corona, CA 92883
Phone (951) 293-4722

303 Corte Madera Town Ctr
Corte Madera, CA 94925
Phone (415) 840-8615

14443 Culver Dr
#14443A
Irvine, CA 92604
Phone (949) 767-8173

975 S Fairmont Ave
Lodi, CA 95240
Phone (209) 339-7575

806 New Los Angeles Ave
Moorpark, CA 93021
Phone (805) 334-8650

401 Grand Ave
#1112
Oakland, CA 94610
Phone (800) 756-4206

10 Woodland Rd
Saint Helena, CA 94574
Phone (707) 963-2002

1390 Market St
Ste 109
San Francisco, CA 94102
Phone (415) 918-5766

46 Hillsdale Mall
San Mateo, CA 94403
Phone (650) 769-5612

525 W Acacia St
Stockton, CA 95203
Phone (209) 944-5410

1800 Spring Ridge Dr
Susanville, CA 96130
Phone (530) 252-2225

275 Hospital Dr
Ukiah, CA 95482
Phone (707) 462-7900

1 Marcela Dr
Willits, CA 95490
Phone (707) 456-3001

1190 Waianuenue Ave
Hilo, HI 96720
Phone (808) 932-3000

640 Ulukahiki St
Kailua, HI 96734
Phone (808) 261-3326

128 Lehua St
Wahiawa, HI 96786
Phone (808) 621-4330

NPPES NPI Registry

Updated by the provider on Dec 14, 2021

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 20A10992 CA Primary

Addresses

Primary practice location

5189 Hospital Rd
Mariposa, CA 95338-9524

Mailing address

101 Bodin Cir
Travis Afb, CA 94535-1809

NPI Registry JSON

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

{
    "created_epoch": "1129248000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1639440000000",
    "number": "1962491670",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 BODIN CIR",
            "city": "TRAVIS AFB",
            "state": "CA",
            "postal_code": "945351809"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5189 HOSPITAL RD",
            "city": "MARIPOSA",
            "state": "CA",
            "postal_code": "953389524",
            "telephone_number": "209-966-3631"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WARREN",
        "first_name": "DERON",
        "middle_name": "THEODORE",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-14",
        "last_updated": "2021-12-14",
        "certification_date": "2021-12-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "20A10992",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mariposa, CA

Sources for this page

Verify at the official NPI Registry.