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Emergency Medicine

Cynthia A. Cellucci-Chwalik, MD

Works at hospitals in Chico, CA · Madera, CA · Gridley, CA · California

Summary

Dr. Cynthia A. Cellucci-Chwalik, MD is an emergency medicine doctor at 173 E Webster St, Colusa, CA 95932. Phone: (209) 287-6308. Accepts Medicare assignment. In 2024, Cynthia A. Cellucci-Chwalik had 159 Original Medicare patients and 242 services. NPI 1457491359. 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.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 173 E Webster St, Colusa, CA 95932 · Directions (1 more location)
  • Phone: (209) 287‑6308
  • Medicare: Accepts Medicare assignment
  • Hospitals: Enloe Health, Madera Community Hospital, Orchard Hospital
  • Group practice: American Specialty Physicians Group Inc
  • Medical school: graduated 1995 (31 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cynthia A. Cellucci-Chwalik, 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 Cynthia A. Cellucci-Chwalik accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia A. Cellucci-Chwalik 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 Cynthia A. Cellucci-Chwalik see?
In 2024, CMS data shows 159 Original Medicare patients and 242 services for Cynthia A. Cellucci-Chwalik. This counts Original Medicare only and measures volume, not quality.
What is Cynthia A. Cellucci-Chwalik's NPI number?
1457491359. 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 Cynthia A. Cellucci-Chwalik, 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 patients159
Services billed to Medicare242
Different services or procedures12
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Emergency department visit with moderate level of medical decision making (99284)66 services
  2. Emergency department visit with low level of medical decision making (99283)56 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)40 services
  4. Emergency department visit with straightforward medical decision making (99282)32 services
  5. Emergency department visit with high level of medical decision making (99285)22 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 pressure72%
  • High cholesterol69%
  • Arthritis39%
  • Diabetes37%
  • Depression33%
  • Anxiety33%

Hospitals where Cynthia A. Cellucci-Chwalik works

Medicare's Facility Affiliation Data lists Cynthia A. Cellucci-Chwalik 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.

  • Enloe HealthChico, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050039
  • Madera Community HospitalMadera, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050856
  • Orchard HospitalGridley, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051311

Practice locations

Addresses where Cynthia A. Cellucci-Chwalik is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cynthia A. Cellucci-Chwalik as a member of this group (CMS data updated October 2, 2026).

  • American Specialty Physicians Group Inc100 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Colusa

Clinicians with the same Medicare primary specialty in Colusa, CA — not a recommendation.

All emergency medicine doctors in Colusa →

Other clinicians in American Specialty Physicians Group Inc

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

Clinician information

CredentialMD
Graduation year1995 (31 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1457491359
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