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Family Practice

Generoso N. Sison Jr., MD

Works at hospitals in Peoria, IL · Pekin, IL · Illinois

Summary

Dr. Generoso N. Sison Jr., MD is a family doctor at 3591 Griffin Ave, Pekin, IL 61554. Phone: (309) 353-6301. Accepts Medicare assignment. In 2024, Generoso N. Sison Jr. had 430 Original Medicare patients and 2,310 services. NPI 1609085273. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Generoso N. Sison Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Generoso N. Sison Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Generoso N. Sison Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Generoso N. Sison Jr. see?
In 2024, CMS data shows 430 Original Medicare patients and 2,310 services for Generoso N. Sison Jr.. This counts Original Medicare only and measures volume, not quality.
What is Generoso N. Sison Jr.'s NPI number?
1609085273. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Generoso N. Sison Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients430
Services billed to Medicare2,310
Different services or procedures45
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)639 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)554 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)366 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)314 services
  5. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)80 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis37%
  • Diabetes30%
  • Chronic kidney disease30%
  • Ischemic heart disease25%

Hospitals where Generoso N. Sison Jr. works

Medicare's Facility Affiliation Data lists Generoso N. Sison Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Generoso N. Sison Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Generoso N. Sison Jr. as a member of these groups (CMS data updated October 2, 2026).

  • Carle Health Care Incorporated1,666 clinicians in the group
  • Methodist Medical Center of Illinois382 clinicians in the group
  • Proctor Health Systems105 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Pekin

Clinicians with the same Medicare primary specialty in Pekin, IL — not a recommendation.

All family doctors in Pekin →

Other clinicians in Carle Health Care Incorporated

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609085273
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians