Desiree Sierra Velez, MD

Primary specialty

Pediatric Gastroenterology PhysicianTaxonomy code 2080P0206X

License

275022 Issued in MA

Practice address

300 Longwood Ave
Boston, MA 02115-5724

Phone

(617) 355-6000

NPI assigned

Sep 12, 2014

Last updated

Dec 1, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Pediatric Medicine

Education

University of Puerto Rico School of Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Children's Hospital Pediatric Associates, IncGroup PAC ID 3476541830, 333 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Boston Children's Hospital Hospital, Boston, MA, CCN 223302

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dsierravelez28480@direct.bostonchildrens.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.

• Children's Hospital Pediatric Associates, Inc

  • Pediatrics Physician
  • Boston, MA
  • NPI 1457306664
  Medicare reassignment Care Compare group NPD

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

• Children's Hospital Corporation

  dba Boston Children's Hospital

  • Children's Hospital
  • Boston, MA
  • NPI 1710087127
  Care Compare affiliation

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

{
    "created_epoch": "1410480000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764547200000",
    "number": "1558762203",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724",
            "telephone_number": "617-355-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIERRA VELEZ",
        "first_name": "DESIREE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-09-12",
        "last_updated": "2025-12-01",
        "certification_date": "2025-12-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "275022",
            "primary": false
        },
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "MA",
            "license": "275022",
            "primary": true
        },
        {
            "code": "2080B0002X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Obesity Medicine",
            "state": "MA",
            "license": "275022",
            "primary": false
        },
        {
            "code": "2080P1004X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Physician Nutrition Specialist",
            "state": "MA",
            "license": "275022",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brian Siembor, PH.D.
• Andrew Dean Siemens, MD
• Kyla Nicollette Siemens
• Kaitlin Ann Siempelkamp, LCSW-MA
• Peter Sienko, MD
• Kailan Sierra-Davidson
• Angelica Sierra, LICSW
• Diana Sierra, MASTERS
• Lisandra Sierra
• Andrew Conrad Siesennop, M.D.

• Pediatric Gastroenterology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Pediatric Gastroenterology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 1, 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.