NPIMap

Individual provider Active NPI

Marian Lacy, M.D.

  • Infectious Disease Physician
  • Flagstaff, AZ
National Provider Identifier
1780987073
Registry record updated Nov 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
52413 Issued in AZ
Practice address
1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone
(928) 213-6235
Fax
(928) 213-6292
NPI assigned
Dec 8, 2010
Last updated
Nov 4, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 4, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X 52413 AZ Primary

Addresses

Primary practice location

1200 N Beaver St
Flagstaff, AZ 86001-3118

Mailing address

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone (928) 213-6235

Other identifiers 1

IdentifierTypeStateIssuer
173257MedicaidAZ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ, MI2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20160822002681 AZ Practitioner - Internal MedicinePractitioner - HospitalistPractitioner - Pediatric Medicine 5799088340 Reassigns benefits to 2 organizations
I20260515001515 MI Practitioner - Infectious Disease 5799088340 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Hospitalist, Pediatric Medicine
Education
Johns Hopkins University School of Medicine, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone (928) 779-3366

1215 N Beaver St
Suite 203
Flagstaff, AZ 86001-3126
Phone (928) 773-2249

2000 S Thompson St
Flagstaff, AZ 86001-8759
Phone (928) 226-6400

269 S Candy LN
Cottonwood, AZ 86326-4158
Phone (928) 639-6000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.13 of 100Reported as group
Quality
66.85
Promoting interoperability
99
Improvement activities
40
Cost
74.4

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Northern Arizona Healthcare Corporation CurrentSince Nov 28, 2018 Accepting new patients
Flagstaff Pathology Associates Current Accepting new patients
Einfectionmd PC Infectious Disease CurrentSince Apr 1, 2025 Accepting new patients
Northern Arizona Healthcare Corporation Pediatrics CurrentSince Nov 28, 2018 Accepting new patients

Locations

269 S Candy Ln
Cottonwood, AZ 86326
Phone (928) 634-2251

1200 N Beaver St
Flagstaff, AZ 86001
Phone (928) 213-6235

1215 N Beaver St
Ste 203
Flagstaff, AZ 86001
Phone (928) 773-2249

2375 E Camelback Rd
Ste 600
Phoenix, AZ 85016
Phone (602) 341-5248

Organizations & group practices 5

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.

Hospital & facility affiliations 7

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": "1291766400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762214400000",
    "number": "1780987073",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-213-6235",
            "fax_number": "928-213-6292"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-213-6235",
            "fax_number": "928-213-6292"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LACY",
        "first_name": "MARIAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-12-08",
        "last_updated": "2025-11-04",
        "certification_date": "2025-11-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "AZ",
            "license": "52413",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "173257",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Flagstaff, AZ

Sources for this page

Verify at the official NPI Registry.