Internal Medicine - Rheumatology Specialists in Phoenix, AZ
Browse 29 Internal Medicine - Rheumatology providers listed in NPPES with a practice address in Phoenix, Arizona.
How Phoenix compares with the U.S.
Phoenix has 1.8 clinicians in Internal Medicine - Rheumatology per 100,000 residents, about 74% of the U.S. rate of 2.4.
That is 29 active clinicians in Internal Medicine - Rheumatology with a practice address in Phoenix, for a population of 1,642,323.
The Arizona rate is 1.6 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.
100% of clinicians in Internal Medicine - Rheumatology in Phoenix listed in the CMS Medicare file (17 of 17) accept Medicare assignment. That is similar to the Arizona share of 99%.
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.
76% of clinicians in Internal Medicine - Rheumatology in Phoenix listed in the CMS Medicare file (13 of 17) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the Arizona share of 65%.
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 - Rheumatology Medicare (PECOS) Enrollment & Ordering Eligibility
Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine - Rheumatology practitioners in Phoenix, AZ
Dr. Swati S Bharadwaj , MD, MPH
Internal Medicine - Rheumatology
Dr. Paul Henry Caldron , DO
Internal Medicine - Rheumatology
Dr. Sheetal K Chhaya , DO
Internal Medicine - Rheumatology
Dr. Saima Chohan , MD
Internal Medicine - Rheumatology
Dr. James Clark , MD
Internal Medicine - Rheumatology
Dr. Matthew Herrmann , MD
Internal Medicine - Rheumatology
Tiffany Hoang
Internal Medicine - Rheumatology
Dr. Ramina Jajoo Frindrich , MD
Internal Medicine - Rheumatology
Dr. Savitha B. Kalya , MD
Internal Medicine - Rheumatology
Dr. Dimpy Kapoor , MD
Internal Medicine - Rheumatology
Dr. Nikila V. Kumar , MD
Internal Medicine - Rheumatology
Dr. Alan H Mallace , MD
Internal Medicine - Rheumatology
Dr. Nisha J Manek , MD
Internal Medicine - Rheumatology
Dr. Dipika Patel-Boolani , MD
Internal Medicine - Rheumatology
Dr. James O Posever , MD
Internal Medicine - Rheumatology
Dr. Stuart Posner , MD
Internal Medicine - Rheumatology
Dr. Trent H. Smith , MD
Internal Medicine - Rheumatology
Dr. Nehad Soloman , MD
Internal Medicine - Rheumatology
Dr. Lisa Maureen Sumner , MD
Internal Medicine - Rheumatology
Dr. John R Tesser , MD
Internal Medicine - Rheumatology
Frequently Asked Questions about Internal Medicine - Rheumatology in Phoenix
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.
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.
Other Specialties in Phoenix
- Student in an Organized Health Care Education/Training Program 1,583
- Pharmacist 1,484
- Nurse Practitioner - Family 1,242
- Physical Therapist 1,036
- Speech-Language Pathologist 934
- Physician Assistant 926
- Counselor - Mental Health 819
- Social Worker - Clinical 778
- Counselor - Professional 741
- Nurse Practitioner - Psychiatric/Mental Health 549
- Occupational Therapist 538
- Dentist - General Practice 461
Internal Medicine - Rheumatology Specialists in Other Arizona Cities
Cities with the most listed practitioners first.