Ernie Riffer, MD
Internal Medicine Physician · Phoenix, AZ
Ernie Riffer, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1134284268, issued on Dec 27, 2006. Check the license (Arizona 17480, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ernie Riffer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 17480 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 7600 N 15TH St Ste 190, Phoenix, AZ 85020
- Phone
- (602) 200-3800
- Enumerated
- Dec 27, 2006
- Record last updated
- Dec 5, 2023
- Fax
- (602) 200-3838
- Medicaid ID
- 137340 AZ
- Medicare enrollment
- Enrolled (PECOS I20100902000902); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 7600 N 15TH St Ste 190
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Abelev, MDFamily Medicine Physician1417573163
- Shawn Dunmire, FNP-BCFamily Nurse Practitioner1083359962
- Dorothy Trimmer, F.N.P.Family Nurse Practitioner1891756045
Verify Ernie Riffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 17480Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average internal medicine physician in 2024
8,762 Medicare Part D claims for 753 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 108 claims were for opioids.
Most prescribed
- Atorvastatin Calcium630 claims
- Levothyroxine Sodium450 claims
- Amlodipine Besylate323 claims
- Lisinopril273 claims
- Tamsulosin Hcl268 claims
- Pantoprazole Sodium254 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $125.00
1 payment: food and beverage; the largest payer was Argenx US, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Greater Phoenix Collaborative Care PCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
695 internal medicine physician records list a practice address in Phoenix
They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.
All 695 in Phoenix → All 2,853 in Arizona → Every provider in Phoenix →
Other internal medicine physician records in Arizona
- Daniel Aaronson, MDTucson, AZ1134865355
- Constantia Abarikwu, MDPhoenix, AZ1497832620
- Jaber Abawi, MDPayson, AZ1629038542
- Demsas Abay, MDPeoria, AZ1720312390
- Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
- Hassan Abbas, D.O.Mesa, AZ1477294775
- Jalal Abbas, M.D.Sun City West, AZ1205895034
- Tayeb Abbas, MDSun City West, AZ1093406795
- Hamed Abbaszadegan, MDPhoenix, AZ1407083579
- Kristopher Abbate, MDTucson, AZ1184112401
Common questions
What is Ernie Riffer, MD's NPI number?
Ernie Riffer, MD's National Provider Identifier (NPI) is 1134284268, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ernie Riffer, MD located?
The NPPES record lists a practice address at 7600 N 15TH St Ste 190, Phoenix, AZ, 85020. Phone: (602) 200-3800. Providers update this record themselves, so call before visiting.
How can I verify Ernie Riffer, MD's license?
NPPES lists Arizona license number 17480, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ernie Riffer, MD prescribe under Medicare Part D?
In 2024, Ernie Riffer, MD had 8,762 Medicare Part D claims for 753 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.