NPIMap

Individual provider Active NPI

Hla Myint Maung Shin Jian Hwang, M.D.

  • Nephrology Physician
  • Ontario, CA
National Provider Identifier
1356357560
Registry record updated Jan 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
A55844 Issued in CA
Practice address
1131 W 6TH St Ste 150
Ontario, CA 91762-1116
Phone
(909) 482-4462
Fax
(909) 321-2130
NPI assigned
Jul 31, 2006
Last updated
Jan 2, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 2, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A55844 CA
Nephrology Physician 207RN0300X A55844 CA Primary
Hospitalist Physician 208M00000X A55844 CA

Addresses

Primary practice location

1131 W 6TH St Ste 150
Ontario, CA 91762-1116

Mailing address

840 Towne Center Dr
Pomona, CA 91767-5900
Phone (909) 398-1550

Other practice location 1

9190 Haven Ave Ste 102
Rancho Cucamonga, CA 91730-5431
Phone (909) 981-0989

Other identifiers 1

IdentifierTypeStateIssuer
00A558440MedicaidCA

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
I20080222000443 CA Practitioner - NephrologyPractitioner - Internal Medicine 4688621113 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Our Family Medical Group IncGroup PAC ID 8729369665, 5 clinicians
Chaparral Medical Group IncGroup PAC ID 6800709403, shared by 2 NPIs, 66 clinicians

Practice addresses (Care Compare)

1131 W 6TH St
Suite 150
Ontario, CA 91762-1116
Phone (909) 482-4462

9190 Haven Ave
Rancho Cucamonga, CA 91730-5431
Phone (909) 581-6732

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
78.08 of 100Reported as group
Quality
40.87
Promoting interoperability
75
Improvement activities
40
Cost
74.84

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
55844CAMDPharmacist
A55844CAMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Chaparral Medical Group, Inc. Internal Medicine Current Accepting new patients
Chaparral Medical Group Inc Internal Medicine CurrentSince Oct 1, 2015 Accepting new patients
Chaparral Medical Group, Inc. Current Accepting new patients
Chaparral Medical Group Inc. CurrentSince Oct 1, 2015 Accepting new patients
Chaparral Medical Group Inc. CurrentSince Oct 1, 2015 Accepting new patients
Our Family Medical Group, Inc. Internal Medicine CurrentSince Dec 3, 2025 Accepting new patients
Chino Medical Group, Inc Internal Medicine Past Accepting new patients

Locations

138 Harvard Ave
Claremont, CA 91711
Phone (909) 624-4503

1131 W 6th St
Ste 150
Ontario, CA 91762
Phone (909) 482-4462

1801 W Olympic Blvd
Pasadena, CA 91199

1818 N Orange Grove Ave
Ste 204
Pomona, CA 91767
Phone (909) 620-7200

1866 N Orange Grove Ave
Ste 202
Pomona, CA 91767
Phone (909) 623-8796

1880 N Orange Grove Ave
Pomona, CA 91767
Phone (909) 620-7200

840 Towne Center Dr
Pomona, CA 91767

9190 Haven Ave
Ste 101
Rancho Cucamonga, CA 91730
Phone (909) 581-6732

9190 Haven Ave
Ste 102
Rch Cucamonga, CA 91730
Phone (909) 527-8110

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: hlamyintmaungshinjian.hwang.p11@direct.lifelinevascular.nextgenshare.com

Organizations & group practices 9

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": "1154304000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767312000000",
    "number": "1356357560",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "840 TOWNE CENTER DR",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917675900",
            "telephone_number": "909-398-1550",
            "fax_number": "909-398-1488"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1131 W 6TH ST STE 150",
            "city": "ONTARIO",
            "state": "CA",
            "postal_code": "917621116",
            "telephone_number": "909-482-4462",
            "fax_number": "909-321-2130"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9190 Haven Ave Ste 102",
            "address_purpose": "LOCATION",
            "city": "Rancho Cucamonga",
            "state": "CA",
            "postal_code": "917305431",
            "country_code": "US",
            "telephone_number": "909-981-0989",
            "fax_number": "909-321-2120",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HWANG",
        "first_name": "HLA MYINT MAUNG",
        "middle_name": "SHIN JIAN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-31",
        "last_updated": "2026-01-02",
        "certification_date": "2026-01-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A55844",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "A55844",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A55844",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A558440",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Ontario, CA

Sources for this page

Verify at the official NPI Registry.