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DR. JAMES GERARD DWYER MD
NPI 1356458699
Internal Medicine - Cardiovascular Disease in Phoenix, AZ

Active since August 24, 2006PECOS Enrolled
1848 E THOMAS RD STE 100, PHOENIX, AZ 85016(602) 456-2342(602) 688-2342 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 7, 2023, Sep 19, 2018, Mar 31, 2016 and 1 more (4 updates tracked since 2015).

About Dr. James Gerard Dwyer Md NPPES

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

DR. JAMES GERARD DWYER MD (NPI 1356458699) is an individual cardiovascular disease provider in Phoenix, Arizona, licensed in Arizona (28611) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356458699
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. JAMES GERARD DWYERCredential: MD
Location Address1848 E THOMAS RD STE 100Phoenix, AZ 85016-8103
Mailing Address1848 E Thomas Rd Ste 100Phoenix, AZ 85016-8103 · (602) 456-2342 · Fax (602) 688-2342
Phone(602) 456-2342
Fax(602) 688-2342
Sole ProprietorNo
Enumeration DateAugust 24, 2006
Last NPPES UpdateMarch 7, 20234 updates tracked since enumeration
✔ NPI 1356458699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in AZ · 28611
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License 28611 (AZ)
1848 E THOMAS RD STE 100, Phoenix, AZ 85016
Open in Google Maps ↗

Other Identifiers 1

Medicaid532483AZ

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Gerard Dwyer Md 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 Reassignments

2

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

Swarup LLC
Same address
Clinical Cardiac Electrophysiology
1848 E THOMAS RD STE 100
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 8 clinicians in this Medicare group
NPI 1356663736 (602) 456-2342
Yavapai Community Hospital Association
78 mi
General Acute Care Hospital
7700 E FLORENTINE RD
Prescott Valley, AZ 86314
  • Reassigned Medicare billing, Arizona enrollment
  • 83 clinicians in this Medicare group
NPI 1871534487 (928) 445-2700

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85016 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
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 5

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

GABRIELLA LATTANZI GANNETT
Physician Assistant (Medical)
1848 E THOMAS RD STE 100
PHOENIX, AZ 85016
Maricopa County (602) 456-2342
SWARUP LLC
Internal Medicine (Clinical Cardiac Electrophysiology)
1848 E THOMAS RD STE 100
PHOENIX, AZ 85016
Maricopa County (602) 456-2342
DR. VIJENDRA SWARUP M.D.
Internal Medicine (Clinical Cardiac Electrophysiology)
1848 E THOMAS RD STE 100
PHOENIX, AZ 85016
Maricopa County (602) 456-2342
PATRYCJA KUSZKA PA-C
Physician Assistant
1848 E THOMAS RD STE 100
PHOENIX, AZ 85016
Maricopa County (602) 456-2342
SWARUP LLC
Registered Nurse (Cardiac Rehabilitation)
1848 E THOMAS RD STE 100
PHOENIX, AZ 85016
Maricopa County (602) 688-2342

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 James Dwyer's NPI number?

The NPI number for James Dwyer is 1356458699. It was assigned to this individual provider in the NPPES registry on August 24, 2006.

Where is James Dwyer located?

James Dwyer practices at 1848 E Thomas Rd Ste 100, Phoenix, AZ 85016. The listed phone number is (602) 456-2342.

What is James Dwyer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is James Dwyer enrolled in Medicare?

Yes. James Dwyer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Dwyer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Dwyer reassigns Medicare benefits to 2 organizations: Swarup LLC (Phoenix, AZ) and Yavapai Community Hospital Association (Prescott Valley, 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 James Dwyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Dwyer was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.