Mark Joseph Siegel, M.D.

Primary specialty

Dermatology PhysicianTaxonomy code 207N00000X

License

38050 Issued in SC

Practice address

169 Ashley Ave
Room 202 Main Hospital Musc333
Charleston, SC 29425

Phone

(843) 792-3876

Fax

(843) 876-1435

NPI assigned

Apr 28, 2015

Last updated

Aug 12, 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

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in SC

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

DermatologyAlso: Pediatric Medicine

Education

Univ of Central Florida, College of Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University Medical Associates of the Medical University of South CarolGroup PAC ID 6305758574, 1,634 clinicians

Mt Pleasant DermatologyGroup PAC ID 6204721285, 7 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Musc Medical Center Hospital, Charleston, SC, CCN 420004

Merit-based Incentive Payment System (MIPS)

Final score

79.02 of 100Reported as group

Quality

62.41

Promoting interoperability

99

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: msiegel184341@direct.musc.edu
• Direct secure messaging: msiegel20877@directmcleodehealth.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.

• Mt Pleasant Dermatology

  • Dermatology Physician
  • Mount Pleasant, SC
  • NPI 1821048828
  Medicare reassignment Care Compare group NPD
• University Medical Associates of the Medical University of South Carol

  dba MUSC Physicians

  • Multi-Specialty Clinic/Center
  • Charleston, SC
  • NPI 1043241110
  Medicare reassignment Care Compare group NPD
• University Medical Associates

  • Pediatric Emergency Medicine (Pediatrics) Physician
  • Charleston, SC
  • NPI 1548413453
  NPD
• University Medical Associates of the Medical University of South Carol

  dba MUSC PHysicians

  • Family Medicine Physician
  • Charleston, SC
  • NPI 1982678496
  NPD

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

• Medical University Hospital Authority

  • General Acute Care Hospital
  • Charleston, SC
  • NPI 1073605879
  Care Compare affiliation
• Medical University Hospital Authority

  dba MUSC Health- Rehabiliation - orangeburg - part of musc medical center

  • Rehabilitation Hospital
  • Orangeburg, SC
  • NPI 1154020147
  Care Compare affiliation
• Medical University Hospital Authority

  • General Acute Care Hospital
  • Charleston, SC
  • NPI 1659435840
  Care Compare affiliation
• Medical University Hospital Authority

  dba MUSC Health - Psychiatry - Orangeburg - part of MUSC Medical Center Ch

  • Psychiatric Hospital
  • Orangeburg, SC
  • NPI 1669171740
  Care Compare affiliation
• Medical University Hospital Authority

  dba MUSC Health - Orangeburg, part of the MUSC Medical Center - Charleston

  • General Acute Care Hospital
  • Orangeburg, SC
  • NPI 1710683354
  Care Compare affiliation
• Medical University Hospital Authority

  dba MUSC Health - Orangeburg, part of MUSC Medical Center - CHarleston

  • General Acute Care Hospital
  • Orangeburg, SC
  • NPI 1770280299
  Care Compare affiliation

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

{
    "created_epoch": "1430179200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1437536463",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "570 LONG POINT RD STE 200",
            "city": "MT PLEASANT",
            "state": "SC",
            "postal_code": "294647940",
            "telephone_number": "843-881-0320",
            "fax_number": "843-881-5453"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "169 ASHLEY AVE",
            "address_2": "ROOM 202 MAIN HOSPITAL MUSC333",
            "city": "CHARLESTON",
            "state": "SC",
            "postal_code": "29425",
            "telephone_number": "843-792-3876",
            "fax_number": "843-876-1435"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "570 Long Point Rd Ste 200",
            "address_purpose": "LOCATION",
            "city": "MT Pleasant",
            "state": "SC",
            "postal_code": "294647940",
            "country_code": "US",
            "telephone_number": "843-881-0320 x230",
            "fax_number": "843-881-5453",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIEGEL",
        "first_name": "MARK",
        "middle_name": "JOSEPH",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-28",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "SC",
            "license": "38050",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "38050",
            "state": "SC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "380509",
            "state": "SC"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mariah Siciliano
• Rachel Siciliano, PHD
• Najeeb Irtaza Siddique, MD
• Mitchell J Siegan, MD
• Libby Siegel
• Paul Siegel, PH.D.
• Nicholas Siemers
• Jeffrey Ryan Siewicki, PHARMD
• Barry William Sigal, MD
• Meredith Sigler, PHARM.D.

• Dermatology Physician in Charleston, SC
• Providers in Charleston, SC by specialty
• Dermatology Physician in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.