Daniel O Siegel, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

35377 Issued in CO

Practice address

4500 E 9TH Ave
#720 S
Denver, CO 80220

Phone

(303) 355-3525

Fax

(303) 355-0255

NPI assigned

Sep 14, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CO

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 MedicineAlso: Gastroenterology

Education

Icahn School of Medicine at Mount Sinai, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Denver Digestive Health Specialists IncGroup PAC ID 8022090067, 17 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• HCA Healthone Rose Hospital, Denver, CO, CCN 060032

Merit-based Incentive Payment System (MIPS)

Final score

74.04 of 100Reported as group

Quality

48.8

Promoting interoperability

98

Improvement activities

40

Cost

66.32

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: danielsiegel@ddhs.allscriptsdirect.net

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.

• Denver Digestive Health Specialists Inc

  • Gastroenterology Physician
  • Denver, CO
  • NPI 1447278981
  Medicare reassignment Care Compare group NPD
• Colorado Gastroenterology Prof LLC

  • Gastroenterology Physician
  • Denver, CO
  • NPI 1396790101
  NPD

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

• HCA Healthone LLC

  • General Acute Care Hospital
  • Denver, CO
  • NPI 1023062098
  Care Compare affiliation

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

{
    "created_epoch": "1126656000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1174518344",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4500 E 9TH AVE",
            "address_2": "#720 S",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "80220",
            "telephone_number": "303-355-3525",
            "fax_number": "303-355-0255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 E 9TH AVE",
            "address_2": "#720 S",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "80220",
            "telephone_number": "303-355-3525",
            "fax_number": "303-355-0255"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIEGEL",
        "first_name": "DANIEL",
        "middle_name": "O",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-14",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "35377",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CO",
            "license": "35377",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01353770",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Elliane Marie Siebert, MD
• John Siebert, MD
• Paul N Siebert, MD
• Breanna Sieck
• Adrienne J Siefert, MSPT
• Erin Marie Siegel, LE. CLC, CMA
• Natalie Ann Siegel, SWC
• Samantha Siegel, MA
• Sandra Siegel, PH.D.
• G. Bryan Siegrist, DDS

• Gastroenterology Physician in Denver, CO
• Providers in Denver, CO by specialty
• Gastroenterology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.