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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ALLISON POPE RYAN D.O.
NPI 1598742157
Internal Medicine in Henderson, NV

Active since December 26, 2005
1902 WHISPERING CIR, HENDERSON, NV 89012(702) 896-4279(702) 450-6497 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Allison Pope Ryan D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALLISON POPE RYAN D.O. (NPI 1598742157) is an individual internal medicine provider in Henderson, Nevada, licensed in Nevada (1051) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1598742157
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALLISON POPE RYANCredential: D.O.
Location Address1902 WHISPERING CIRHenderson, NV 89012-3485
Mailing Address1902 Whispering CirHenderson, NV 89012-3485 · (702) 896-4279 · Fax (702) 450-6497
Phone(702) 896-4279
Fax(702) 450-6497
Sole ProprietorNo
Enumeration DateDecember 26, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1598742157 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NV · 1051
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1902 WHISPERING CIR, Henderson, NV 89012
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allison Ryan's NPI number?

The NPI number for Allison Ryan is 1598742157. It was assigned to this individual provider in the NPPES registry on December 26, 2005.

Where is Allison Ryan located?

Allison Ryan practices at 1902 Whispering Cir, Henderson, NV 89012. The listed phone number is (702) 896-4279.

What is Allison Ryan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Allison Ryan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.