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KAREN E PAPEZ MD
NPI 1881700292
Pediatrics - Pediatric Nephrology in Phoenix, AZ

Active since August 21, 2006PECOS EnrolledAccepts Medicare Assignment
2545 E THOMAS RD, SUITE 110, PHOENIX, AZ 85016(602) 903-1532(602) 956-0567 Get Directions Write a Review

NPPES record last updated: July 15, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 15, 2020, Jun 26, 2018, Feb 12, 2016 (3 updates tracked since 2016).

About Karen E Papez Md NPPES

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

KAREN E PAPEZ MD (NPI 1881700292) is an individual pediatric nephrology provider in Phoenix, Arizona, licensed in Arizona (37068) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Nevada School Of Medicine (2000).

NPPES Registry Identity

NPI1881700292
Entity TypeIndividualFemale
Primary Taxonomy2080P0210X
Provider Legal NameKAREN E PAPEZCredential: MD
Location Address2545 E THOMAS RD, SUITE 110Phoenix, AZ 85016-7941
Mailing Address6622 N 91st Ave, Ste 220Glendale, AZ 85305-2569 · (602) 759-6883 · Fax (602) 224-3358
Phone(602) 903-1532
Fax(602) 956-0567
Sole ProprietorNo
Medical School CMSUniversity Of Nevada School Of MedicineGraduated 2000
Enumeration DateAugust 21, 2006
Last NPPES UpdateJuly 15, 20203 updates tracked since enumeration
NPPES CertifiedJuly 15, 2020
✔ NPI 1881700292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0210X
Licenses✔ Licensed in AZ · 37068✔ Licensed in MI · 4301081980
Definition
A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy.
Also ListedPediatricsTaxonomy 208000000X · License 4301081980 (MI), 37068 (AZ)
2545 E THOMAS RD, Phoenix, AZ 85016
Open in Google Maps ↗

Other Identifiers 2

Medicaid240160AZ
Other37068AZ · License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Imperial Insurance Companies, Inc..Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen E Papez Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072513613
PECOS Enrollment IDI20070817000109
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 Reassignments

2

Medicare enrollment records show Karen Papez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Phoenix Children's Hospital
0.9 mi
Pediatrics
1919 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 1,416 clinicians in this Medicare group
NPI 1922112044 (602) 933-1000
District Medical Group, Inc
1.5 mi
Surgery
2525 E ROOSEVELT ST, MED CLINIC - INFECTIOUS DISEASE
Phoenix, AZ 85008
  • Reassigned Medicare billing, Arizona enrollment
  • 1,490 clinicians in this Medicare group
NPI 1174856280 (602) 344-1095

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

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers38 claims2,731 services$0.33 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers20 claims2,334 services$0.17 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
4 suppliers22 claims22 services$15.85 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
5 suppliers50 claims52 services$11.92 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

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

DR. VALENTIN ZAHARIA M.D.
Internal Medicine (Nephrology)
2545 E THOMAS RD, STE 120
PHOENIX, AZ 85016
Maricopa County (602) 419-3378
DR. IBRAHIM QAQISH M.D.
Internal Medicine (Nephrology)
2545 E THOMAS RD, SUITE 120
PHOENIX, AZ 85016
Maricopa County (602) 419-3378
DR. STEPHANIE SZU-KAI HSIEH M.D.
Pediatrics (Pediatric Nephrology)
2545 E THOMAS RD, STE 110
PHOENIX, AZ 85016
Maricopa County (602) 309-1532
PHOENIX PEDIATRIC DIALYSIS CENTER LLC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
2545 E THOMAS RD, SUITE 100
PHOENIX, AZ 85016
Maricopa County (602) 957-1648
DR. EDGARDO LAUREL M.D.
Internal Medicine (Nephrology)
2545 E THOMAS RD, SUITE 120
PHOENIX, AZ 85016
Maricopa County (602) 419-3637

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 Karen Papez's NPI number?

The NPI number for Karen Papez is 1881700292. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Karen Papez located?

Karen Papez practices at 2545 E Thomas Rd Suite 110, Phoenix, AZ 85016. The listed phone number is (602) 903-1532.

What is Karen Papez's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.

Is Karen Papez enrolled in Medicare?

Yes. Karen Papez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Papez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Papez reassigns Medicare benefits to 2 organizations: Phoenix Children's Hospital (Phoenix, AZ) and District Medical Group, Inc (Phoenix, AZ). Each 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 Karen Papez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Papez accept?

Health plans from Imperial Insurance Companies, Inc. list Karen Papez 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 Karen Papez was last updated on July 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.