Individual provider Active NPI

Mary Helen Calahan, PGC APRNRNP AGACNPBC

  • Acute Care Nurse Practitioner
  • Tucson, AZ
National Provider Identifier
1003632589
Registry record updated Apr 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
322429 Issued in AZ
Practice address
7255 E Snyder Rd Unit 1203
Tucson, AZ 85750-6241
Phone
(520) 437-8289
NPI assigned
Nov 29, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 15, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Nurse 163W00000X RN188674 AZ
Acute Care Nurse Practitioner 363LA2100X 322429 AZ Primary

Addresses

Primary practice location

7255 E Snyder Rd Unit 1203
Tucson, AZ 85750-6241

Mailing address

7255 E Snyder Rd Unit 1203
Tucson, AZ 85750-6241
Phone (520) 437-8289

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ
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 1

Enrollment IDStateProvider typePAC IDDetails
I20251007002791 AZ Practitioner - Nurse Practitioner 2466959499 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Naz Hospitalists IncGroup PAC ID 5294627816, 28 clinicians

Practice addresses (Care Compare)

1003 Willow Creek Rd
Prescott, AZ 86301-1641
Phone (928) 771-5470

Hospital & facility affiliations

  • Yavapai Regional Medical Center Hospital, Prescott, AZ, CCN 030012

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
RN188674AZMDRegistered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Naz Hospitalists Inc CurrentSince Jul 25, 2025 Accepting new patients
Yavapai Community Hospital Association Past Accepting new patients

Locations

1003 Willow Creek Rd
Prescott, AZ 86301
Phone (928) 445-2700

1003 Willow Creek Rd
Ste 1300
Prescott, AZ 86301

Organizations & group practices 2

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1732838400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744675200000",
    "number": "1003632589",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7255 E SNYDER RD UNIT 1203",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857506241",
            "telephone_number": "520-437-8289"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7255 E SNYDER RD UNIT 1203",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857506241",
            "telephone_number": "520-437-8289"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALAHAN",
        "first_name": "MARY",
        "middle_name": "HELEN",
        "credential": "PGC APRNRNP AGACNPBC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-11-29",
        "last_updated": "2025-04-15",
        "certification_date": "2025-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "AZ",
            "license": "RN188674",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "AZ",
            "license": "322429",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tucson, AZ

Sources for this page

Verify at the official NPI Registry.