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Internal Medicine - Infectious Diseases in Tucson, AZ

Browse 34 Internal Medicine - Infectious Disease providers listed in NPPES with a practice address in Tucson, Arizona.

34 Healthcare Providers

How Tucson compares with the U.S.

Tucson has 6.2 clinicians in Internal Medicine - Infectious Disease per 100,000 residents, about 1.9 times the U.S. rate of 3.2.

That is 34 active clinicians in Internal Medicine - Infectious Disease with a practice address in Tucson, for a population of 547,073.

The Arizona rate is 2.4 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 Internal Medicine - Infectious Disease in Tucson listed in the CMS Medicare file (19 of 19) accept Medicare assignment. That is similar to the Arizona share of 96%.

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.

21% of clinicians in Internal Medicine - Infectious Disease in Tucson listed in the CMS Medicare file (4 of 19) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Arizona share of 34%.

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).

Internal Medicine - Infectious Disease Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Infectious Disease practitioners in Tucson, AZ

Source: CMS PECOS
PECOS Enrolled Specialists 24 In Tucson, AZ
Part B Lab & Imaging Eligible 23 Diagnostic Referrals
DME Ordering Eligible 23 Durable Medical Equipment
Home Health Agency Referrals 23 HHA Ordering Eligible
Showing 1โ€“20 of 34 providers
With recent CMS data first, then Aโ€“Z

Dr. Matthew Douglas Adams , DO

Internal Medicine - Infectious Disease

Active NPI Status
1501 N Campbell Ave, Tucson, AZ 857245040
Phone: 5206266405
NPI Identifier 1578941720
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Dr. Rory Michael Bouzigard , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1555 E River Rd Ste 125, Tucson, AZ 857185831
Phone: 5203189681
NPI Identifier 1750815700
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Dr. Thomas Alexander Erwes , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1625 N Campbell Ave, Tucson, AZ 857194330
Phone: 5206940111
NPI Identifier 1427519743
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Dr. Lori E Fantry , MD, MPH

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1501 N Campbell Ave, Tucson, AZ 857241544
Phone: 4103289105
NPI Identifier 1821046277
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Dr. Logan Paolo Locsin Felix , MD

Internal Medicine - Infectious Disease

Active NPI Status
2300 S Houghton Rd Ste 250, Tucson, AZ 857480002
Phone: 5202314379
NPI Identifier 1194038505
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Dr. John Natale Galgiani , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
Valley Fever Center For Excellence, 1656 E Mabel Street, Tucson, AZ 857240001
Phone: 5206264968
NPI Identifier 1154341055
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Alexa Giovanatti

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
3838 N Campbell Ave Bldg 2, Tucson, AZ 857191454
Phone: 5206948888
NPI Identifier 1861011256
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Justin Hayes

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1501 N Campbell Ave, Tucson, AZ 857240001
Phone: 5206266887
NPI Identifier 1710321641
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Dr. Monica Yulieth Hinestroza Jordan , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
3838 N Campbell Ave Bldg 2, Tucson, AZ 857191454
Phone: 5206948888
NPI Identifier 1902391428
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Dr. Stephen A Klotz , MD

Internal Medicine - Infectious Disease

Active NPI Status
1501 N Campbell Ave, Tucson, AZ 857240001
Phone: 5206948888
NPI Identifier 1801995196
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Dr. Rajat Madan , MD, PhD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1501 N Campbell Ave, Tucson, AZ 857240001
Phone: 5206261251
NPI Identifier 1164678777
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Dr. Richard M Mandel , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
6200 N La Cholla Blvd, Tucson, AZ 857413529
Phone: 5209918514
NPI Identifier 1841398211
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Dr. Clifford P Martin , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5230 E Farness Dr, Suite 100, Tucson, AZ 857122141
Phone: 5203189681
NPI Identifier 1760429864
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Dr. Sudha Nagalingam , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1230 S Cherrybell Stra, Tucson, AZ 857131907
Phone: 5206703909
NPI Identifier 1811126303
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Dr. Marcelo Eduardo Nasif , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5230 E Farness Dr, Suite 100, Tucson, AZ 857122141
Phone: 5203189681
NPI Identifier 1912936907
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Dr. Vimbai Nyemba , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1701 W Saint Marys Rd, Tucson, AZ 857452621
Phone: 5207929890
NPI Identifier 1902151251
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Dr. Steven Lee Oscherwitz , MD

Internal Medicine - Infectious Disease

Active NPI Status
5230 E Farness Dr, Ste 100, Tucson, AZ 857122141
Phone: 5203189681
NPI Identifier 1336113539
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Dr. Carlos Mario Perez-Velez , MD

Internal Medicine - Infectious Disease

Active NPI Status
2980 E Ajo Way, Tucson, AZ 857136267
Phone: 5202479594
NPI Identifier 1104972728
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Angelita Lynnette Poston Seitz , FNP-C

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1230 S Cherrybell Stra, Tucson, AZ 857131907
Phone: 5206703909
NPI Identifier 1063984029
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Dr. Denisse Ramirez , MD

Internal Medicine - Infectious Disease

Active NPI Status Accepts Medicare Assignment
1230 S Cherrybell Stra, Tucson, AZ 857131907
Phone: 5206703909
NPI Identifier 1205331428
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Frequently Asked Questions about Internal Medicine - Infectious Disease in Tucson

How do I check a Internal Medicine - Infectious Disease 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.