Individual provider Active NPI

Tamara Lynn Siemer, CNP

  • Family Nurse Practitioner
  • Columbus, OH
National Provider Identifier
1679799191
Registry record updated Jul 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
NP-06006 Issued in OH
Practice address
3000 Corporate Exchange Dr
Columbus, OH 43231
Phone
(888) 562-5442
Fax
(562) 499-6171
NPI assigned
Apr 17, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 15, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 29328A SC
Family Nurse Practitioner 363LF0000X NP-06006 OH Primary

Addresses

Primary practice location

3000 Corporate Exchange Dr
Columbus, OH 43231

Mailing address

200 Oceangate Ste 100
Long Beach, CA 90802-4317
Phone (562) 435-3666

Other practice location 1

375 Dixmyth Ave
Cincinnati, OH 45220-2475
Phone (513) 862-2563

Other identifiers 1

IdentifierTypeStateIssuer
3031178MedicaidOH

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH, KY, MA, VA, MI, SC6 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 6

Enrollment IDStateProvider typePAC IDDetails
I20090423000138 OH Practitioner - Nurse Practitioner 5294883617 Reassigns benefits to 1 organization
I20211216002967 KY Practitioner - Nurse Practitioner 5294883617 Reassigns benefits to 1 organization
I20221019003118 MA Practitioner - Nurse Practitioner 5294883617 Reassigns benefits to 1 organization
I20230602000130 VA Practitioner - Nurse Practitioner 5294883617
I20240322004011 MI Practitioner - Nurse Practitioner 5294883617 Reassigns benefits to 1 organization
I20241120002929 SC Practitioner - Nurse Practitioner 5294883617 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Nurse Practitioner, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
NP-06006OHMDFamily Nurse Practitioner

Interoperability endpoints

  • Direct secure messaging: tsiemer8441@direct-prd.molinahealthcare.com

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1176768000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1679799191",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 OCEANGATE STE 100",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908024317",
            "telephone_number": "562-435-3666",
            "fax_number": "562-499-6171"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3000 CORPORATE EXCHANGE DR",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "43231",
            "telephone_number": "888-562-5442",
            "fax_number": "562-499-6171"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "375 Dixmyth Ave",
            "address_purpose": "LOCATION",
            "city": "Cincinnati",
            "state": "OH",
            "postal_code": "452202475",
            "country_code": "US",
            "telephone_number": "513-862-2563",
            "fax_number": "513-751-8638",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIEMER",
        "first_name": "TAMARA",
        "middle_name": "LYNN",
        "name_prefix": "Mrs.",
        "credential": "CNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-04-17",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "SC",
            "license": "29328A",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "OH",
            "license": "NP-06006",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3031178",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Columbus, OH

Sources for this page

Verify at the official NPI Registry.