Fadi F Siyam, M.D.

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

2013002833 Issued in MO

Practice address

12700 Southfork Rd Ste 205
Saint Louis, MO 63128-3201

Phone

(314) 525-7350

Fax

(314) 525-7356

NPI assigned

Jul 21, 2008

Last updated

Feb 4, 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 3

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO, IL2 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 2

Specialty

EndocrinologyAlso: Internal Medicine

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mercy Clinic Endocrinology LLCGroup PAC ID 7416073531, 7 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital St Louis Hospital, Saint Louis, MO, CCN 260020
• Mercy Hospital South Hospital, Saint Louis, MO, CCN 260077
• Mercy Hospital Jefferson Hospital, Crystal City, MO, CCN 260023
• Mercy Hospital Washington Hospital, Washington, MO, CCN 260052

Merit-based Incentive Payment System (MIPS)

Final score

92 of 100Reported as group

Quality

84.7

Promoting interoperability

100

Improvement activities

40

Cost

79.21

Merit-based Incentive Payment System (MIPS)

Final score

94.81 of 100Reported as apm

Quality

85.98

Promoting interoperability

100

Improvement activities

40

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.

• Mercy Clinic Endocrinology, LLC

  • Endocrinology, Diabetes & Metabolism Physician
  • Saint Louis, MO
  • NPI 1922328442
  Medicare reassignment Care Compare group NPD
• HSHS Medical Group Inc

  • Multi-Specialty Clinic/Center
  • Springfield, IL
  • NPI 1962644807
  Medicare reassignment
• SJL Health Systems Inc

  dba Prairie Rose Health Care Center

  • Skilled Nursing Facility
  • Pana, IL
  • NPI 1215037353
  NPD
• Physician Groups LC

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1285664268

  Endocrinology, Diabetes & Metabolism

  NPD (past)

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

• Mercy Hospital Jefferson

  • General Acute Care Hospital
  • Festus, MO
  • NPI 1508859661
  Care Compare affiliation
• Mercy Hospital South

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1568481984
  Care Compare affiliation
• Mercy Hospitals East Communities

  dba Mercy Hospital Washington

  • General Acute Care Hospital
  • Washington, MO
  • NPI 1285664177
  Care Compare affiliation
• Mercy Hospitals East Communities

  dba Mercy Hospital St Louis

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1427098169
  Care Compare affiliation
• Mercy Hospitals East Communities

  dba Mercy St. Louis Transport Ambulance

  • Land Ambulance
  • Saint Louis, MO
  • NPI 1881329902

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1216598400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1738627200000",
    "number": "1558526574",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12700 SOUTHFORK RD STE 205",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631283201",
            "telephone_number": "314-525-7350",
            "fax_number": "314-525-7356"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12700 SOUTHFORK RD STE 205",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631283201",
            "telephone_number": "314-525-7350",
            "fax_number": "314-525-7356"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIYAM",
        "first_name": "FADI",
        "middle_name": "F",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-21",
        "last_updated": "2025-02-04",
        "certification_date": "2025-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MO",
            "license": "2013002833",
            "primary": true
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "OR",
            "license": "MD220356",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "IL",
            "license": "036150752",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "fsiyam262424@ewd.direct.hshs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "775 Sunset Blvd Ste B",
            "city": "O Fallon",
            "state": "IL",
            "country_code": "US",
            "postal_code": "622691960",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Dawn L Sitler, APRN-CNS
• Donald Joseph Sitner
• Harold Barrie Sitrin, MD
• Amanda Johns Sivewright, PNP
• Andrew Sivils, MD
• Elizabeth Anne Size, ATC
• Joel Andrew Sjerven
• Brittany Boyer Skaer, MSOT, OTR/L, CLT
• Camille Nell Skaer, FNP
• Ghassan Skaf, OTR/L

• Endocrinology, Diabetes & Metabolism Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Endocrinology, Diabetes & Metabolism Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 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.