Jamar Williams, MD, MPH

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

U9456 Issued in TX

Practice address

710 Cypress Creek Pkwy
Houston, TX 77090-3402

Phone

(281) 440-1000

NPI assigned

Sep 24, 2013

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY, NJ, TX3 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 3

Specialty

Emergency Medicine

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Medicine Services of TX, PLLCGroup PAC ID 3375909351, 374 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• HCA Houston Healthcare Northwest Hospital, Houston, TX, CCN 450638

Merit-based Incentive Payment System (MIPS)

Final score

87.07 of 100Reported as group

Quality

76.5

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jwilliams249232@epicdirect.rwjbh.org

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.

• Emergency Medicine Services of TX, PLLC

  • Emergency Medicine Physician
  • San Antonio, TX
  • NPI 1245938729
  Medicare reassignment Care Compare group NPD
• Rwjbh Emergency Medicine Associates, LLC

  • Emergency Medicine Physician
  • Somerset, NJ
  • NPI 1912510041
  Medicare reassignment NPD
• Rwjbh Observation Associates LLC

  • Emergency Medicine Physician
  • Livingston, NJ
  • NPI 1760095806
  Medicare reassignment NPD
• Wyckoff Professional Medical Services, PC

  • Internal Medicine Physician
  • Brooklyn, NY
  • NPI 1659710796
  Medicare reassignment NPD

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

• Houston Northwest Operating Company, LLC

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1740450121
  Care Compare affiliation

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

{
    "created_epoch": "1379980800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1689000465",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9803 SH-242 W",
            "address_2": "SUITE 200",
            "city": "CONROE",
            "state": "TX",
            "postal_code": "77385",
            "telephone_number": "929-503-4678",
            "fax_number": "347-906-7172"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "710 CYPRESS CREEK PKWY",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770903402",
            "telephone_number": "281-440-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "JAMAR",
        "credential": "MD, MPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-09-24",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "289711",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "U9456",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Iriel Arlette Williams
• Jabbar Abdul Williams, LPC
• Jacob Malone Williams, PHD
• Jacqueline Yvette Williams, RN
• Jaelyn Williams
• Jamarcus M Williams, PHARMD
• Jameson Williams
• Janae Williams, PHARMD
• Janay Williams
• Jane T. Williams, RN, FNP

• Emergency Medicine Physician in Houston, TX
• Providers in Houston, TX by specialty
• Emergency Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2026; 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.