John Sifuentes, M.D.
Internal Medicine Physician · Joliet, IL
John Sifuentes, M.D. is an internal medicine physician with a practice address in Joliet, Illinois, and NPI 1154433621, issued on Aug 31, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Sifuentes
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 1106 Neal Ave, Joliet, IL 60433
- Phone
- (815) 727-8670
- Enumerated
- Aug 31, 2006
- Entity
- Type 1 · individual
Also registered at 1106 Neal Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dolly Agba, NURSE PRACTITIONERAdult Health Nurse Practitioner1023027869
- Joanne BoydNurse Practitioner1487879516
- Janel Draxler, MSN, APRN, PMHNP-BCRegistered Nurse1306298096
- Ngozi EboruPsychiatric/Mental Health Nurse Practitioner1033861067
Verify John Sifuentes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
293 Medicare Part D claims for 155 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone27 claims
- Amlodipine Besylate17 claims
- Amoxicillin-Clavulanate Potass17 claims
- Atorvastatin Calcium12 claims
- Pantoprazole Sodium12 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.
3 hospital and facility affiliations
- Cogent Healthcare OF Iowa PCCedar Rapids, IA
- Sound Inpatient Physicians-Michigan PLLCTraverse City, MI
- Sound Physicians OF Massachusetts IncBrockton, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
52 internal medicine physician records list a Joliet practice address
They are 52 of the 2,047 NPPES records with a Joliet practice address, and 8,522 internal medicine physician records in Illinois.
All 52 in Joliet → All 8,522 in Illinois → Every provider in Joliet →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Pamela Abadi, D.O.Winfield, IL1588820179
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Misha Abbasi, MDChicago, IL1770111635
Common questions
What is John Sifuentes, M.D.'s NPI number?
John Sifuentes, M.D.'s National Provider Identifier (NPI) is 1154433621, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Sifuentes, M.D. located?
The NPPES record lists a practice address at 1106 Neal Ave, Joliet, IL, 60433. Phone: (815) 727-8670. Providers update this record themselves, so call before visiting.
How can I verify John Sifuentes, M.D.'s license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Sifuentes, M.D. prescribe under Medicare Part D?
In 2024, John Sifuentes, M.D. had 293 Medicare Part D claims for 155 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.