Individual provider Active NPI

Preston Charles Maxim, MD

  • Emergency Medicine Physician
  • San Francisco, CA
National Provider Identifier
1427090042
Registry record updated Jan 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A70159 Issued in CA
Practice address
1001 Potrero Ave
RM 1E21
San Francisco, CA 94110-3518
Phone
(415) 206-5753
Fax
(415) 206-5818
NPI assigned
Jun 11, 2006
Last updated
Jan 16, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 16, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 59325 AZ
Emergency Medicine Physician 207P00000X A70159 CA Primary

Addresses

Primary practice location

1001 Potrero Ave
RM 1E21
San Francisco, CA 94110-3518

Mailing address

PO Box 7464
San Francisco, CA 94120-7464
Phone (415) 206-3103

Other identifiers 2

IdentifierTypeStateIssuer
930100761OtherCARAILROAD MEDICARE
00A701590MedicaidCA

Electronic endpoints 1

TypeEndpointUseAffiliation
SOAP URL https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq Health Information Exchange (HIE) The Permanente Medical Group

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, NM, AZ, TX4 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 4

Enrollment IDStateProvider typePAC IDDetails
I20080711000420 CA Practitioner - Emergency Medicine 2860564598 Reassigns benefits to 4 organizations
I20161011003040 NM Practitioner - Emergency Medicine 2860564598 Reassigns benefits to 1 organization
I20200115001559 AZ Practitioner - Emergency Medicine 2860564598 Reassigns benefits to 1 organization
I20200303001081 TX Practitioner - Emergency Medicine 2860564598 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Washington School of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Innova Emergency Medical Associates PCGroup PAC ID 2860633435, 69 clinicians

Practice addresses (Care Compare)

1313 E 32ND St
Silver City, NM 88061-7251
Phone (575) 538-4000

1501 N Williamson Ave
Winslow, AZ 86047-2735
Phone (844) 466-6827

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
89.21 of 100Reported as group
Quality
76.88
Promoting interoperability
76
Improvement activities
40
Cost
73.83

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A70159CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California SFGH Medical Group CurrentSince Dec 8, 1999 Accepting new patients
Permanente Medical Group Inc Emergency Medicine Current Accepting new patients
Winslow Indian Health Care Center, Inc CurrentSince Aug 7, 2023 Accepting new patients
Gila River Health Care Corporation CurrentSince Feb 4, 2020 Accepting new patients
Innova Emergency Medical Associates PC Emergency Medicine CurrentSince Sep 1, 2016 Accepting new patients
Dilkon Medical Center Current Accepting new patients
University of California SFGH Medical Group Emergency Medicine CurrentSince Dec 8, 1999 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
Gila River Health Care Corporation Current Accepting new patients
Team Physicians of California Medical Group Inc Emergency Medicine CurrentSince Nov 1, 2025 Accepting new patients
Winslow Indian Health Care Center, Inc CurrentSince Aug 7, 2023 Accepting new patients
Permanente Medical Group, Inc CurrentSince May 9, 2014 Accepting new patients
Gila River Health Care CurrentSince Feb 4, 2020 Accepting new patients
San Francisco Physicians International Medical Group, Inc Emergency Medicine CurrentSince Jan 25, 2021 Accepting new patients
Permanente Medical Group Inc Emergency Medicine CurrentSince May 9, 2014 Accepting new patients

Locations

3269 N Stockton Hill Rd
Kingman, AZ 86409
Phone (928) 757-0626

2200 E Show Low Lake Rd
Show Low, AZ 85901
Phone (928) 537-4375

1501 N Williamson Ave
Winslow, AZ 86047
Phone (928) 289-4691

500 Indiana Ave
Winslow, AZ 86047

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

1001 Potrero Ave
Rm 1E21
San Francisco, CA 94110
Phone (415) 206-5752

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

6001 Norris Canyon Rd
San Ramon, CA 94583
Phone (925) 275-8273

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

1800 N California St
Stockton, CA 95204
Phone (209) 467-6400

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

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

1425 S Main St
Walnut Creek, CA 94596
Phone (925) 295-4130

1313 E 32nd St
Silver City, NM 88061
Phone (505) 537-4953

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 5

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": "1149984000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1736985600000",
    "number": "1427090042",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7464",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941207464",
            "telephone_number": "415-206-3103",
            "fax_number": "415-206-3872"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVE",
            "address_2": "RM 1E21",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941103518",
            "telephone_number": "415-206-5753",
            "fax_number": "415-206-5818"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAXIM",
        "first_name": "PRESTON",
        "middle_name": "CHARLES",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-11",
        "last_updated": "2025-01-16",
        "certification_date": "2025-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "AZ",
            "license": "59325",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A70159",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "930100761",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A701590",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq",
            "affiliation": "Y",
            "endpointDescription": "Carequality",
            "affiliationName": "The Permanente Medical Group",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "1425 S Main St",
            "city": "Walnut Creek",
            "state": "CA",
            "country_code": "US",
            "postal_code": "945965318",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.