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Emergency Medicine Providers in Sun City, AZ

Browse 22 Emergency Medicine providers listed in NPPES with a practice address in Sun City, Arizona.

22 Healthcare Providers

How Sun City compares with the U.S.

Sun City has 59 clinicians in Emergency Medicine per 100,000 residents, 2.8 times the U.S. rate of 21.

That is 22 active clinicians in Emergency Medicine with a practice address in Sun City, for a population of 37,486.

The Arizona rate is 20 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Emergency Medicine in Sun City listed in the CMS Medicare file (12 of 12) accept Medicare assignment. That is similar to the Arizona share of 97%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 12 clinicians in Emergency Medicine in Sun City listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Emergency Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Emergency Medicine practitioners in Sun City, AZ

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Sun City, AZ
Part B Lab & Imaging Eligible 15 Diagnostic Referrals
DME Ordering Eligible 15 Durable Medical Equipment
Home Health Agency Referrals 15 HHA Ordering Eligible
Showing 1โ€“20 of 22 providers
With recent CMS data first, then Aโ€“Z

Dr. Adam Calvin Blystra , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 W Thunderbird Blvd, Emergency Department, Sun City, AZ 853513004
Phone: 6238325772
NPI Identifier 1073860441
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Dr. Gregory Alan Greenbaum , MD

Emergency Medicine

Active NPI Status
10401 West Thunderbird Blvd., Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1982654067
View Full Profile

Dr. Raymond Hemmert , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6239777211
NPI Identifier 1013946870
View Full Profile

Dr. Heidi Susan Holland , DO

Emergency Medicine

Active NPI Status
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6239777211
NPI Identifier 1134179179
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Dr. Peter Vaughn Hull , MD

Emergency Medicine

Active NPI Status
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6239777211
NPI Identifier 1255384640
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Dr. Ellen Ann Leng , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 West Thunderbird Blvd., Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1902855497
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Dr. John William Loewen , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 West Thunderbird Boulevard, Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1760435960
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Dr. Scott David Lopata , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 West Thunderbird Blvd., Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1356390843
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Dr. Aaron C Mckinney , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
14502 West Meeker Boulevard, Sun City, AZ 85375
Phone: 6232144000
NPI Identifier 1043269467
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Dr. Kenneth Steven Moore , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 West Thunderbird Boulevard, Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1467402800
View Full Profile

Dr. William Ray Mostow , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
14502 West Meeker Boulevard, Sun City, AZ 85375
Phone: 6232144000
NPI Identifier 1922057348
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Dr. Leon Minhanh Nguyen , DO

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6238329155
NPI Identifier 1124607874
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Dr. Parth Harish Patel , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6238324000
NPI Identifier 1144858663
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Jesus Antonio Robles , PA-C

Emergency Medicine

Active NPI Status
10015 W Royal Oak Rd, Sun City, AZ 853513164
Phone: 6238154210
NPI Identifier 1326079419
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Dr. Kevin Robert Tench , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6238325772
NPI Identifier 1902063639
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Dr. Thomas Seiji Umemoto , MD

Emergency Medicine

Active NPI Status Accepts Medicare Assignment
10401 West Thunderbird Boulevard, Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1477503845
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Dr. Robert T. Fitzgerald , MD

Emergency Medicine

Active NPI Status
10401 W Thunderbird Blvd, Sun City, AZ 853513004
Phone: 6239777211
NPI Identifier 1790735751
View Full Profile

Dr. Howard Ian Friedman , MD

Emergency Medicine

Active NPI Status
10401 West Thunderbird Boulevard, Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1942259700
View Full Profile

Dr. Joel Alan Gross , MD

Emergency Medicine

Active NPI Status
10401 West Thunderbird Blvd., Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1790735876
View Full Profile

Dr. Robert Plass , MD

Emergency Medicine

Active NPI Status
10401 West Thunderbird Boulevard, Sun City, AZ 85351
Phone: 6239777211
NPI Identifier 1437109865
View Full Profile

Frequently Asked Questions about Emergency Medicine in Sun City

How do I check a Emergency Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Arizona licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.