Ruby Samuel John, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

P1334 Issued in TX

Practice address

10020 Research Forest Dr
The Woodlands, TX 77354-6780

Phone

(281) 356-1945

Fax

(281) 356-1978

NPI assigned

Aug 15, 2008

Last updated

Jul 28, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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 TX

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, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Westwood Primary Care, PLLCGroup PAC ID 9638230121, 19 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hermann Hospital System Hospital, Houston, TX, CCN 450184

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Westwood Primary Care, PLLC

  dba Magnolia Family Medicine

  • Family Medicine Physician
  • Magnolia, TX
  • NPI 1851549851
  Medicare reassignment Care Compare group NPD

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

• Memorial Hermann Health System

  dba MHHS NW Radiation Therapy

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1013948553

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Woodlands Outpatient Imaging System

  • Radiology Clinic/Center
  • The Woodlands, TX
  • NPI 1275564858

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba Memorial Hermann Outpatient Imaging-Southwest

  • Radiology Clinic/Center
  • Houston, TX
  • NPI 1407959448

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Friendswood Imaging

  • Radiology Clinic/Center
  • Friendswood, TX
  • NPI 1508896267

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba MHHS Pearland Outpatient Imaging Center

  • Radiology Clinic/Center
  • Pearland, TX
  • NPI 1669402335

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1730132234
  Care Compare affiliation

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

{
    "created_epoch": "1218758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1629224118",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6912 FM 1488 RD",
            "city": "MAGNOLIA",
            "state": "TX",
            "postal_code": "773541527",
            "telephone_number": "281-356-1945",
            "fax_number": "281-356-1978"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10020 RESEARCH FOREST DR",
            "city": "THE WOODLANDS",
            "state": "TX",
            "postal_code": "773546780",
            "telephone_number": "281-356-1945",
            "fax_number": "281-356-1978"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHN",
        "first_name": "RUBY",
        "middle_name": "SAMUEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-08-15",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "P1334",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jorge Ivan Jimenez
• Maria Isabel Jimenez, BCBA
• JKJ Pathology
• Calvin Lee Jochetz, DDS
• John G Newkirk DDS Inc
• Sanjna John, DDS
• Tony John, MD
• Avonda Johnson, PHD
• Clint Weston Johnson, MD
• Cynthia P Johnson, R.N.

• Internal Medicine Physician in The Woodlands, TX
• Providers in The Woodlands, TX by specialty
• Internal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 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.