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DESERT SAGE INTERNAL MEDICINE, LTD
NPI 1497713796
Internal Medicine in Oro Valley, AZ

Active since May 03, 2006CLIA 03D0982413 · Microscopy
1834 E INNOVATION PARK DR, ORO VALLEY, AZ 85755(520) 825-9656(520) 818-2525 Get Directions Write a Review

NPPES record last updated: November 8, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Desert Sage Internal Medicine, Ltd NPPES

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

DESERT SAGE INTERNAL MEDICINE, LTD (NPI 1497713796) is a healthcare organization registered as an internal medicine in Oro Valley, Arizona and active in the NPI registry since May 2006. The organization holds a CLIA Microscopy certificate valid through August 31, 2028 and lists Pamela Anne Dowell, President, as its authorized official.

NPPES Registry Identity

NPI1497713796
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDESERT SAGE INTERNAL MEDICINE, LTD
Location Address1834 E INNOVATION PARK DROro Valley, AZ 85755-1963
Mailing Address1834 E Innovation Park DrOro Valley, AZ 85755-1963 · (520) 825-9656 · Fax (520) 818-2525
Phone(520) 825-9656
Fax(520) 818-2525
Organization SubpartNo
Authorized OfficialPamela Anne DowellPresident · (520) 825-9656
Enumeration DateMay 3, 2006
Last NPPES UpdateNovember 8, 2010
✔ NPI 1497713796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
1834 E INNOVATION PARK DR, Oro Valley, AZ 85755
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Other Identifiers 1

Medicare PINZ63416

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Desert Sage Internal Medicine, Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Desert Sage Internal Medicine, Ltd, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Pamela Dowell, MD
Internal Medicine
NPI 1326059239
1834 E INNOVATION PARK DR
Oro Valley, AZ 85755
(520) 825-9656
✔ PECOS✔ Accepts MedicareSame address
Robert Irwin, MD
Internal Medicine
NPI 1215948039
1834 E INNOVATION PARK DR
Oro Valley, AZ 85755
(520) 825-9656
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 03D0982413

Desert Sage Internal Medicine Ltd · Oro Valley, AZ
Active · expires Aug 31, 2028
CLIA Number03D0982413
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorPamela A. Dowell
Laboratory Phone(520) 825-9656
Laboratory LocationDesert Sage Internal Medicine Ltd1834 E Innovation Park Dr, Oro Valley, AZ 85755
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Desert Sage Internal Medicine, Ltd's NPI number?

The NPI number for Desert Sage Internal Medicine, Ltd is 1497713796. It was assigned to this organization in the NPPES registry on May 3, 2006.

Where is Desert Sage Internal Medicine, Ltd located?

Desert Sage Internal Medicine, Ltd is located at 1834 E Innovation Park Dr, Oro Valley, AZ 85755. The listed phone number is (520) 825-9656.

What is Desert Sage Internal Medicine, Ltd's specialty?

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

Is Desert Sage Internal Medicine, Ltd enrolled in Medicare?

Yes. Desert Sage Internal Medicine, Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Desert Sage Internal Medicine, Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Desert Sage Internal Medicine, Ltd. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Desert Sage Internal Medicine, Ltd hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 03D0982413) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Desert Sage Internal Medicine, Ltd was last updated on November 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.