Greggory Gahn

MD | Retina Specialist


 3172 N Swan Rd, Tucson
    Arizona, 85712-1227

 520-881-1400    Maps & Directions
Greggory Gahn is a Tucson, Arizona based Retina Specialist who is specialized in Retina Specialist. Active license number of Greggory Gahn is 80326 for Retina Specialist in Arizona.
Greggory Gahn specializes in the diagnosis and treatment of vitreoretinal diseases. This subspecialty includes the medical and surgical management of retinal and vitreous diseases, including retinal detachment, diabetic retinopathy, macular degeneration, and other disorders of the retina and vitreous.
Complete Profile:
Greggory Gahn speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Specialization: Retina Specialist
Credentials: MD
Gender:Male
Practice Address:3172 N Swan Rd, Tucson,
Arizona, 85712-1227
Phone:520-881-1400
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.
NPI Number: 1720541147
NPI Enumeration Date: 11 Apr, 2019
NPI Last Update On: 09 Sep, 2026
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Greggory Gahn are as mentioned below.
License NumberSpecializationStateStatus
80326Retina Specialist ArizonaPrimary
Other Medical Identifiers:
Other legacy medical identifiers associated with Greggory Gahn such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
CP8528OtherNevadaCP8528
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 3172 N Swan Rd,
Tucson, Arizona
Zip: 85712-1227
Phone Number: 520-881-1400
Patients can reach Greggory Gahn at 3172 N Swan Rd, Tucson, Arizona or can call to book an appointment on 520-881-1400.
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.