Active NPI
Mary Lou Leitner, FNP
- Family Nurse Practitioner
- Tucson, AZ
National Provider Identifier
1730161829
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- RN017399
- Practice address
- 839 W Congress St
Tucson, AZ 85745-2819 - Phone
- (520) 792-9890
- Fax
- (520) 670-3816
- NPI assigned
- Nov 15, 2005
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Nurse Practitioner | 363LF0000X | RN017399 | AZ | Primary |
Addresses
Primary practice location
839 W Congress St
Tucson, AZ 85745-2819
Mailing address
839 W Congress St
Tucson, AZ 85745-2819
Phone (520) 792-9890
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 760076 | Medicaid | AZ |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| RN017399 | AZ | MD | Family Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1132012800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1730161829",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "839 W CONGRESS ST",
"city": "TUCSON",
"state": "AZ",
"postal_code": "857452819",
"telephone_number": "520-792-9890",
"fax_number": "520-670-3816"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "839 W CONGRESS ST",
"city": "TUCSON",
"state": "AZ",
"postal_code": "857452819",
"telephone_number": "520-792-9890",
"fax_number": "520-670-3816"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LEITNER",
"first_name": "MARY",
"middle_name": "LOU",
"credential": "FNP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-11-15",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "AZ",
"license": "RN017399",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "760076",
"state": "AZ"
}
],
"endpoints": [],
"other_names": []
}Other providers in Tucson, AZ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.