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DR. CARLOS GUILLERMO RAMOS M.D.
NPI 1205047545
Pediatrics - Neonatal-Perinatal Medicine in Glendale, AZ

Active since May 25, 2007PECOS Enrolled
5555 W THUNDERBIRD RD, GLENDALE, AZ 85306(602) 805-2669 Get Directions Write a Review

NPPES record last updated: August 7, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Carlos Guillermo Ramos M.d. NPPES

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

DR. CARLOS GUILLERMO RAMOS M.D. (NPI 1205047545) is an individual neonatal-perinatal medicine provider in Glendale, Arizona, licensed in Arizona (48287) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205047545
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDR. CARLOS GUILLERMO RAMOSCredential: M.D.
Location Address5555 W THUNDERBIRD RDGlendale, AZ 85306-4622
Mailing Address1661 E Camelback Rd Ste 200Phoenix, AZ 85016-3913 · (623) 231-3686
Phone(602) 805-2669
Sole ProprietorNo
Enumeration DateMay 25, 2007
Last NPPES UpdateAugust 7, 2025
NPPES CertifiedAugust 7, 2025
✔ NPI 1205047545 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
Licenses✔ Licensed in AZ · 48287✔ Licensed in NM · MD2009-0253✔ Licensed in CA · A91944
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
5555 W THUNDERBIRD RD, Glendale, AZ 85306
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Carlos Guillermo Ramos M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Carlos Ramos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California
295 mi
Pediatrics
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 16 clinicians in this Medicare group
NPI 1386746741 (800) 926-8273

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAVID CONNOR M.D.
Emergency Medicine
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 588-5555
KURT FARR DICKSON MD
Personal Emergency Response Attendant
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 588-5501
DR. JOSEPH PATRICK LOZON M.D.
Emergency Medicine
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 588-5555
ARYA JOHN NIKAMAL D.O.
Internal Medicine (Critical Care Medicine)
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 865-5555
DR. ABHINAV P PATEL MD
Radiology (Diagnostic Radiology)
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 865-5555
DR. RICHARD N EISEN M.D
Pathology (Anatomic Pathology)
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 685-5211
CRISTI PATRICK IANCU RN
Registered Nurse
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 865-5555
DR. NEIL MODY MD
Hospitalist
5555 W THUNDERBIRD RD
GLENDALE, AZ 85306
Maricopa County (602) 787-3410

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 Carlos Ramos's NPI number?

The NPI number for Carlos Ramos is 1205047545. It was assigned to this individual provider in the NPPES registry on May 25, 2007.

Where is Carlos Ramos located?

Carlos Ramos practices at 5555 W Thunderbird Rd, Glendale, AZ 85306. The listed phone number is (602) 805-2669.

What is Carlos Ramos's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Carlos Ramos enrolled in Medicare?

Yes. Carlos Ramos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Carlos Ramos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Ramos reassigns Medicare benefits to Regents Of The University Of California (San Diego, CA). The 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 Carlos Ramos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carlos Ramos accept?

Health plans from Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. list Carlos Ramos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Carlos Ramos was last updated on August 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.