Shervin Assassi, M.D.

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

M2251 Issued in TX

Practice address

6431 Fannin St
MSB 5.270
Houston, TX 77030-1501

Phone

(713) 500-6900

Fax

(713) 500-0580

NPI assigned

Jun 6, 2006

Last updated

Jun 24, 2025By the provider in NPPES

Sex

Male

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

RheumatologyAlso: Internal Medicine

Education

Other, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ut PhysiciansGroup PAC ID 8426960360, 1,744 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hermann - Texas Medical Center Hospital, Houston, TX, CCN 450068

Merit-based Incentive Payment System (MIPS)

Final score

84.11 of 100Reported as group

Quality

69.15

Promoting interoperability

100

Improvement activities

40

Cost

73.63

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://epicproxy.et0909.epichosted.com/APIProxyPRD/api/FHIR/R4/
• Direct secure messaging: sassassi14314@direct.uth.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.

• Ut Physicians

  • Anesthesiology Physician
  • Houston, TX
  • NPI 1033157821
  Medicare reassignment Care Compare group NPD
• Physicians Referral Service

  • Multi-Specialty Clinic/Center
  • Houston, TX
  • NPI 1073574810
  Medicare reassignment NPD
• Ut Physicians

  dba UT Health Services

  • Health Educator
  • Houston, TX
  • NPI 1316534472
  NPD
• Univ of Texas MD Anderson Cancer Center

  • Clinic Pharmacy
  • Houston, TX
  • NPI 1457671042
  NPD (past)

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

• Memorial Hermann Health System

  dba Mhhs Hermann Outpatient Imaging Center

  • Portable X-ray and/or Other Portable Diagnostic Imaging Supplier
  • Houston, TX
  • NPI 1437189115

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  dba Memorial Hermann Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1982666111
  Care Compare affiliation

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

{
    "created_epoch": "1149552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750723200000",
    "number": "1043259567",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6431 FANNIN ST",
            "address_2": "MSB 5.270",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-500-6900",
            "fax_number": "713-500-0580"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6431 FANNIN ST",
            "address_2": "MSB 5.270",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-500-6900",
            "fax_number": "713-500-0580"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1515 Holcombe Blvd",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770304000",
            "country_code": "US",
            "telephone_number": "713-792-6161",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ASSASSI",
        "first_name": "SHERVIN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-06",
        "last_updated": "2025-06-24",
        "certification_date": "2025-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "TX",
            "license": "M2251",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Justina Raouf Assaad, OD
• Jean-Paul Taft Assad, DMD
• Lina W Assad, MD
• Steven Michael Assalita, M.D.
• Kelsey A Assarian, PA-C
• Rosalyn Assef, M.D.
• Aaron Robell Assefaw, M.D.
• Michael A Assel, PH.D.
• Assential Therapeutic Homecare LLC
• Assessment & Referral Associates, Inc.

• Rheumatology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Rheumatology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 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.