1. Home
  2. Directory
  3. Arizona
  4. Mesa
  5. Pediatrics
  6. NPI Profile

DR. JOSEPH A. GASSEN M.D.
NPI 1972586006
Pediatrics in Mesa, AZ

Active since November 22, 2005PECOS Enrolled
5131 E SOUTHERN AVE, MESA, AZ 85206(480) 833-5437(480) 833-9349 Get Directions Write a Review

NPPES record last updated: August 1, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Joseph A. Gassen M.d. NPPES

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

DR. JOSEPH A. GASSEN M.D. (NPI 1972586006) is an individual pediatrics provider in Mesa, Arizona, licensed in Arizona (47682) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972586006
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. JOSEPH A. GASSENCredential: M.D.
Location Address5131 E SOUTHERN AVEMesa, AZ 85206-2799
Mailing Address1919 E Thomas Rd Bldg 2108, 101Phoenix, AZ 85016-7710 · (602) 512-8029 · Fax (602) 512-8161
Phone(480) 833-5437
Fax(480) 833-9349
Sole ProprietorNo
Enumeration DateNovember 22, 2005
Last NPPES UpdateAugust 1, 2013
✔ NPI 1972586006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in AZ · 47682✔ Licensed in MS · 18975
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedHospitalistTaxonomy 208M00000X · License 18975 (MS)
5131 E SOUTHERN AVE, Mesa, AZ 85206
Open in Google Maps ↗

Other Identifiers 4

Medicare UPINI40428
Medicaid04150085MS
Medicaid009932953AL
Medicare ID-Type Unspecified370000457

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joseph A. Gassen 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85206 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

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

DR. MICHAEL HAYNES D.O.
Pediatrics
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 933-0002
ADRIANNA SALAZAR CCC-SLP
Speech-Language Pathologist
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (480) 707-3322
KARL M. BAUMGARTNER MD
Pediatrics
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (480) 833-5437
PHOENIX CHILDREN'S HOSPITAL, INC.
Clinic/Center (Urgent Care)
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 933-0002
PHOENIX CHILDREN'S HOSPITAL, INC.
General Acute Care Hospital (Children)
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 933-0002
MCKENNA TAMMO PA-C
Physician Assistant
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 933-0002
JAMES ALTON WILLIAMS MD
Pediatrics (Pediatric Hematology-Oncology)
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 546-0920
PHOENIX CHILDREN'S MEDICAL GROUP
Clinic/Center (Multi-Specialty)
5131 E SOUTHERN AVE
MESA, AZ 85206
Maricopa County (602) 933-0002

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 Joseph Gassen's NPI number?

The NPI number for Joseph Gassen is 1972586006. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Joseph Gassen located?

Joseph Gassen practices at 5131 E Southern Ave, Mesa, AZ 85206. The listed phone number is (480) 833-5437.

What is Joseph Gassen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Joseph Gassen enrolled in Medicare?

Yes. Joseph Gassen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joseph Gassen was last updated on August 1, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.