Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Marian Lacy, MD

Individual provider Infectious Disease Physician · NPI 1780987073

Dr. Marian Lacy, MD is an Internal Medicine in Flagstaff, Arizona. Graduated from Johns Hopkins University School of Medicine in 2012, 14 years ago. Practices with Northern Arizona Healthcare Corporation, a 395-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
14
Trained at
Johns Hopkins University School of Medicine
Licensed in
AZ
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone: (928) 213-6235
Fax: (928) 213-6292
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 52413 (AZ)

Record details

NPI number1780987073
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 8, 2010
Last updated in NPPESNovember 4, 2025
Certification dateNovember 4, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST, PEDIATRIC MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Northern Arizona Healthcare Corporation — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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