Brian Arellano Reyes, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A73587 Issued in CA

Practice address

6600 Lone Tree Way Ste B
Brentwood, CA 94513-5256

Phone

(925) 276-9908

Fax

(925) 276-9893

NPI assigned

Jan 30, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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

Specialty

Internal Medicine

Education

Other, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Home Health Services Home health agency, Concord, CA, CCN 057276
• JMJ Home Health Services Home health agency, Brentwood, CA, CCN 059309
• Amavi Home Health and Hospice Care Services, Inc. Home health agency, Brentwood, CA, CCN 559139
• Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523

Merit-based Incentive Payment System (MIPS)

Final score

90.98 of 100Reported as apm

Quality

80.39

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: breyes11271@ehr.johnmuirhealth.com
• Direct secure messaging: breyes154426@hisp.ehr.sutterhealth.org

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.

• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405
  Medicare reassignment Care Compare group NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• John Muir Health

  • Rehabilitation Hospital Unit
  • Walnut Creek, CA
  • NPI 1447269303
  NPD (past)
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  NPD (past)
• San Ramon Regional Medical Center, LLC

  • General Acute Care Hospital
  • San Ramon, CA
  • NPI 1932131489
  NPD (past)
• Sutter Delta Medical Center

  • General Acute Care Hospital
  • Antioch, CA
  • NPI 1124135132
  NPD (past)
• Sutter East Bay Medical Foundation

  • Clinical Medical Laboratory
  • Berkeley, CA
  • NPI 1831381623
  NPD (past)

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

• Amavi Home Health and Hospice Care Services, Inc.

  • Home Health Agency
  • Brentwood, CA
  • NPI 1669887592
  Care Compare affiliation
• JMJ Healthcare, Inc

  dba JMJ Home Health Services

  • Home Health Agency
  • Brentwood, CA
  • NPI 1184777344
  Care Compare affiliation
• John Muir Health

  dba John Muir Home Health Services

  • Home Health Agency
  • Concord, CA
  • NPI 1437161452
  Care Compare affiliation
• Sutter Bay Hospitals

  dba Sutter Delta Medical Center

  • General Acute Care Hospital
  • Antioch, CA
  • NPI 1467808659
  Care Compare affiliation

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

{
    "created_epoch": "1138579200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750982400000",
    "number": "1972574739",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6600 LONE TREE WAY",
            "city": "BRENTWOOD",
            "state": "CA",
            "postal_code": "945135256",
            "telephone_number": "925-276-9908",
            "fax_number": "925-276-9893"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6600 LONE TREE WAY STE B",
            "city": "BRENTWOOD",
            "state": "CA",
            "postal_code": "945135256",
            "telephone_number": "925-276-9908",
            "fax_number": "925-276-9893"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REYES",
        "first_name": "BRIAN",
        "middle_name": "ARELLANO",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-01-30",
        "last_updated": "2025-06-27",
        "certification_date": "2025-06-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A73587",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Tuyen Resto, RPH
• Revive Counseling Family Services
• Revive Day Program (ReVive)
• Jose Manuel Reyes Rivera III
• Brenda Reyes, DDS
• Carrington Armanti Reyes
• Kimberly Reyes
• Nathan Russell Reyes
• Jill Denise Reynolds
• Elizabeth Ann Rhodes

• Internal Medicine Physician in Brentwood, CA
• Providers in Brentwood, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 27, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.