Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ernie Riffer, MD

Individual provider Internal Medicine Physician · NPI 1134284268

Ernie Riffer, MD is an Internal Medicine in Phoenix, Arizona. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1986, 40 years ago. Practices with Greater Phoenix Collaborative Care PC, a 111-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
40
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
AZ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7600 N 15th St Ste 190
Phoenix, AZ 85020-4348
Phone: (602) 200-3800
Fax: (602) 200-3838
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 17480 (AZ)

Record details

NPI number1134284268
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 27, 2006
Last updated in NPPESDecember 5, 2023
Certification dateDecember 5, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1986 (40 years in practice)
Group practice Greater Phoenix Collaborative Care Pc — 111 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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