Mihaela S Stefan, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

DR.0074949 Issued in CO

Practice address

2735 5TH St
Boulder, CO 80304-3229

Phone

(516) 581-3013

NPI assigned

Sep 7, 2005

Last updated

Apr 25, 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 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Baystate Affiliated Practice Organization

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1043256043
  NPD (past)

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

{
    "created_epoch": "1126051200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745539200000",
    "number": "1114911088",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2735 5TH ST",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803043229",
            "telephone_number": "516-581-3013"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2735 5TH ST",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803043229",
            "telephone_number": "516-581-3013"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STEFAN",
        "first_name": "MIHAELA",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-07",
        "last_updated": "2025-04-25",
        "certification_date": "2025-04-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "223648",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MA",
            "license": "223648",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR.0074949",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110040687A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Krista Eleanor Steckman, DPT
• Eve Marie Steed, MA, CCC-SLP
• Jennifer Steel
• John Whitney Steele, PH.D.
• Jamie L Steenport, SURGICAL ASSISTANT
• Katherine M Stefanski, LSW
• Audrey Michelle Steffen, SLP
• Heather L. Steffen, PSYD
• Steven David Steinbach
• Tasha Kaye Steinbach

• Internal Medicine Physician in Boulder, CO
• Providers in Boulder, CO by specialty
• Internal Medicine Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.