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PHOENIX WEST INTERNAL MEDICINE LLC
NPI 1609805530
Internal Medicine in Phoenix, AZ

Active since July 02, 2006
4150 N 108TH AVE, STE 142, PHOENIX, AZ 85037(623) 322-1145(623) 466-9552 Get Directions Write a Review

NPPES record last updated: March 8, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Phoenix West Internal Medicine Llc NPPES

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

PHOENIX WEST INTERNAL MEDICINE LLC (NPI 1609805530) is a healthcare organization registered as an internal medicine in Phoenix, Arizona and active in the NPI registry since July 2006. The organization lists Fernando Raul De Castro, Owner, as its authorized official.

NPPES Registry Identity

NPI1609805530
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePHOENIX WEST INTERNAL MEDICINE LLC
Location Address4150 N 108TH AVE, STE 142Phoenix, AZ 85037-5467
Mailing Address9524 W Camelback Rd, Ste 130 Pmb186Glendale, AZ 85305-3104 · (623) 322-1145 · Fax (623) 466-9552
Phone(623) 322-1145
Fax(623) 466-9552
Organization SubpartNo
Authorized OfficialFernando Raul De CastroOwner · (623) 322-1145
Enumeration DateJuly 2, 2006
Last NPPES UpdateMarch 8, 2011
✔ NPI 1609805530 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 30062
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.
4150 N 108TH AVE, Phoenix, AZ 85037
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Other Identifiers 3

Medicaid648735AZ
Medicare UPING63348AZ
Medicare PINZ111745AZ

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)

Phoenix West Internal Medicine Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Phoenix West Internal Medicine LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Fernando Raul De Castro, MD
Internal Medicine
NPI 1184617979
4150 N 108TH AVE STE 142
Phoenix, AZ 85037
(623) 322-1145
✔ PECOSSame address
Silvia Sanchez Cardenas, MD
Internal Medicine
NPI 1295299402
6544 W THOMAS RD STE 1
Phoenix, AZ 85033
(602) 834-5515
✔ PECOS✔ Accepts Medicare5.3 mi
Stefany Irizarry
Nurse Practitioner
NPI 1679174262
750 N ESTRELLA PKWY STE 40
Goodyear, AZ 85338
(623) 223-7093
✔ PECOS✔ Accepts Medicare6.4 mi
Katherine Gross, M.D.
Pulmonary Disease
NPI 1336584184
14300 W GRANITE VALLEY DR STE E23
Sun City West, AZ 85375
(623) 975-0500
✔ PECOS✔ Accepts Medicare12 mi
Antonio Uvas, MD
Family Practice
NPI 1730109745
14300 W GRANITE VALLEY DR SUITE B-7
Sun City West, AZ 85375
(623) 776-3047
✔ PECOS✔ Accepts Medicare12 mi

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

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 Phoenix West Internal Medicine LLC's NPI number?

The NPI number for Phoenix West Internal Medicine LLC is 1609805530. It was assigned to this organization in the NPPES registry on July 2, 2006.

Where is Phoenix West Internal Medicine LLC located?

Phoenix West Internal Medicine LLC is located at 4150 N 108th Ave Ste 142, Phoenix, AZ 85037. The listed phone number is (623) 322-1145.

What is Phoenix West Internal Medicine LLC's specialty?

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

Is Phoenix West Internal Medicine LLC enrolled in Medicare?

Yes. Phoenix West Internal Medicine LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Phoenix West Internal Medicine LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians reassign their Medicare billing to Phoenix West Internal Medicine LLC, in Family Practice, Internal Medicine, Nurse Practitioner and Pulmonary Disease. 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, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Phoenix West Internal Medicine LLC was last updated on March 8, 2011. 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.