JOHN SIFUENTES M.D.
NPI 1154433621
Internal Medicine in Joliet, IL
About John Sifuentes M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN SIFUENTES M.D. (NPI 1154433621) is an individual internal medicine provider in Joliet, Illinois and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center - Cedar Rapids, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Sifuentes M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
11Medicare enrollment records show John Sifuentes reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gary, IN 46402
- Reassigned Medicare billing, Indiana enrollment
- 384 clinicians in this Medicare group
Kalamazoo, MI 49048
- Reassigned Medicare billing, Michigan enrollment
- 596 clinicians in this Medicare group
Cedar Rapids, IA 52403
- Reassigned Medicare billing, Iowa enrollment
- 153 clinicians in this Medicare group
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 81 clinicians in this Medicare group
Adrian, MI 49221
- Reassigned Medicare billing, Michigan enrollment
- 237 clinicians in this Medicare group
Bridgeton, MO 63044
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 419 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Columbus, OH 43213
- Reassigned Medicare billing, Ohio enrollment
- 776 clinicians in this Medicare group
Canton, OH 44708
- Reassigned Medicare billing, Ohio enrollment
- 456 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Indiana enrollment
- 218 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Medical Center - Cedar Rapids
Acute Care Hospitals · Cedar Rapids, IASignature Healthcare Brockton Hospital
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60433 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JOLIET, IL 60433
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Sifuentes's NPI number?
The NPI number for John Sifuentes is 1154433621. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is John Sifuentes located?
John Sifuentes practices at 1106 Neal Ave, Joliet, IL 60433. The listed phone number is (815) 727-8670.
What is John Sifuentes's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Sifuentes enrolled in Medicare?
Yes. John Sifuentes is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Sifuentes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Sifuentes reassigns Medicare benefits to 11 organizations: Sound Physicians Of Indiana, LLC (Gary, IN), Sound Inpatient Physicians-Michigan, PLLC (Kalamazoo, MI), Cogent Healthcare Of Iowa, PC (Cedar Rapids, IA), Cogent Healthcare Of Illinois, LLC (Quincy, IL), Hospitalist Medicine Physicians Of Michigan, PLLC (Adrian, MI) and 6 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Sifuentes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Sifuentes accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource, Oscar Insurance Company, Oscar Insurance Corporation of Ohio and Wellmark Health Plan of Iowa, Inc. list John Sifuentes as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Sifuentes affiliated with any hospitals?
According to CMS data, John Sifuentes is affiliated with Mercy Medical Center - Cedar Rapids and Signature Healthcare Brockton Hospital.
When was this NPI record last updated?
The NPPES record for John Sifuentes was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Sifuentes, M.D. · NPI 1154433621
Internal Medicine physician in Joliet, Illinois. Individual provider, active in the CMS NPPES registry since August 31, 2006.
## Identity
- **NPI:** 1154433621 (Entity type: Individual)
- **Enumerated:** August 31, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1106 NEAL AVE, Joliet, IL 60433-2548
- **Phone:** (815) 727-8670
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Sound Physicians Of Indiana, LLC (NPI 1528311149, Gary, IN); Sound Inpatient Physicians-Michigan, PLLC (NPI 1093967861, Kalamazoo, MI); Cogent Healthcare Of Iowa, PC (NPI 1982654497, Cedar Rapids, IA); Cogent Healthcare Of Illinois, LLC (NPI 1487897849, Quincy, IL); Hospitalist Medicine Physicians Of Michigan, PLLC (NPI 1013180181, Adrian, MI); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN I14228
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Source: [NPI Profile](https://npiprofile.com/npi/1154433621) · Data from the CMS NPPES public registry.