Individual provider Active NPI

Mariam Hasan, M.D

  • Internal Medicine Physician
  • Oakland, CA
National Provider Identifier
1851604847
Registry record updated Apr 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A124405 Issued in CA
Practice address
1411 E 31St St
Oakland, CA 94602-1018
Phone
(408) 332-1755
NPI assigned
Jul 19, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A124405 CA Primary

Addresses

Primary practice location

1411 E 31St St
Oakland, CA 94602-1018

Mailing address

1411 E 31St St
Oakland, CA 94602-1018

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130812000306 CA Practitioner - Internal MedicinePractitioner - Hospitalist 7517109127 Reassigns benefits to 11 organizations
Practice locations: Milpitas, CA

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Onclick Healthcare IncorporatedGroup PAC ID 9830511260, 63 clinicians

Practice addresses (Care Compare)

10230 Artesia Blvd
Suite 104
Bellflower, CA 90706-6768
Phone (562) 804-4764

1272 Arroyo Lindo Dr
Santa Ana, CA 92705-3016
Phone (818) 230-2116

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Knee replacement1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Global Mobile Medical Alliances, Inc. CurrentSince Mar 23, 2020 Accepting new patients
Openloop Healthcare Partners California PC CurrentSince Dec 1, 2024 Accepting new patients
Pinehurst Hospitalist Medical Group, Inc. Hospitalist CurrentSince Mar 17, 2020 Accepting new patients
Mobile Physicians Medical Allied Group Inc CurrentSince Mar 25, 2020 Accepting new patients
California Emergency Physicians Medical Group, a Professional Corp Internal Medicine CurrentSince Oct 9, 2017 Accepting new patients
Cesca Medical Group Inc CurrentSince Jun 1, 2021 Accepting new patients
Boundless Care, Inc. CurrentSince Feb 1, 2025 Accepting new patients
Alameda Health System Current Accepting new patients
Innovi Healthcare Inc. Internal Medicine CurrentSince Feb 7, 2020 Accepting new patients
County of San Mateo CurrentSince Feb 15, 2018 Accepting new patients
Innovi Healthcare Inc. Current Accepting new patients
Openloop Healthcare Partners PC CurrentSince Jun 20, 2023 Accepting new patients
County of San Mateo CurrentSince Feb 15, 2018 Accepting new patients
California Emergency Physicians Medical Group, a Professional Corp Current Accepting new patients
Superior Hospitalist Medical Group Inc Internal Medicine CurrentSince Sep 17, 2022 Accepting new patients
Openloop Healthcare Partners California PC CurrentSince Dec 1, 2024 Accepting new patients
Alameda Health System CurrentSince Jul 1, 2013 Accepting new patients
County of San Mateo CurrentSince Feb 15, 2018 Accepting new patients
Alameda Health System CurrentSince Jul 1, 2013 Accepting new patients
California Emergency Physicians Medical Group a Professional Corp CurrentSince Oct 9, 2017 Accepting new patients
Ozarks Medical Center Past Accepting new patients
Good Samaritan Hospital, L.P. Past Accepting new patients
Evergreen Sleep Center Past Accepting new patients
County of Santa Clara Past Accepting new patients

Locations

10230 Artesia Blvd
Ste 104
Bellflower, CA 90706
Phone (562) 356-9692

2121 E Coast Hwy
Ste 270
Corona del Mar, CA 92625
Phone (949) 694-4937

664 Southland Mall
Hayward, CA 94545
Phone (510) 266-1700

15424 Hawthorne Blvd
Ste 302
Lawndale, CA 90260
Phone (424) 310-2707

1680 E 120th St
Los Angeles, CA 90059
Phone (424) 338-8000

818 W 7th St
Los Angeles, CA 90017
Phone (949) 694-4937

14966 Terreno de Flores Ln
Los Gatos, CA 95032
Phone (408) 356-8136

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

6066 Civic Terrace Ave
Newark, CA 94560
Phone (510) 505-1600

6955 Foothill Blvd
Ste 200
Oakland, CA 94605
Phone (510) 567-5700

1411 E 31st St
Oakland, CA 94602
Phone (510) 437-4323

72650 Fred Waring Dr
Ste 106
Palm Desert, CA 92260
Phone (760) 230-9990

71935 Highway 111
Rancho Mirage, CA 92270
Phone (949) 694-4937

2425 Samaritan Dr
San Jose, CA 95124
Phone (408) 354-2114

5988 Silver Creek Valley Rd
Ste 60
San Jose, CA 95138
Phone (408) 217-0818

222 W 39th Ave
San Mateo, CA 94403
Phone (415) 573-2222

75 Nielson St
Watsonville, CA 95076
Phone (831) 724-4741

818 W Cameron Ave
West Covina, CA 91790
Phone (626) 264-8847

1535 W Merced Ave
Ste 201
West Covina, CA 91790
Phone (626) 337-6246

317 6th Ave
Ste 400
Des Moines, IA 50309
Phone (515) 612-9097

100 Chesterfield Business Pkwy
Fl 2
Chesterfield, MO 63005
Phone (314) 355-8585

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
All Lives Matter HospiceSan Bernardino, CA, CCN B31763 Hospice Contracted Managing Employee Jul 1, 2025

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 26

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.

View all 26

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": "1279497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1851604847",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1411 E 31ST ST",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946021018"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1411 E 31ST ST",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946021018",
            "telephone_number": "408-332-1755"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HASAN",
        "first_name": "MARIAM",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-07-19",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A124405",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oakland, CA

Sources for this page

Verify at the official NPI Registry.