ADDISON CHAN
NPI 1568791994
Emergency Medicine in Modesto, CA
About Addison Chan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADDISON CHAN (NPI 1568791994) is an individual emergency medicine provider in Modesto, California, licensed in Pennsylvania (OS022272) and active in the NPI registry since December 2009. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Clear Lake, and maintains a secondary practice location in Allentown.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Addison Chan 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
10Medicare enrollment records show Addison Chan reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Modesto, CA 95355
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
Beach, ND 58621
- Reassigned Medicare billing, North Dakota enrollment
- Also billed through NPI 1992947956 (North Dakota)
- 401 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 387 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 154 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 272 clinicians in this Medicare group
Pasadena, TX 77505
- Reassigned Medicare billing, Texas enrollment
- 644 clinicians in this Medicare group
Spring Hill, FL 34609
- Reassigned Medicare billing, Florida enrollment
- 118 clinicians in this Medicare group
Tampa, FL 33607
- Reassigned Medicare billing, Florida enrollment
- 161 clinicians in this Medicare group
Tampa, FL 33607
- Reassigned Medicare billing, Florida enrollment
- 158 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 3
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Houston Healthcare Clear Lake
Acute Care Hospitals · Webster, TXValley Regional Medical Center
Acute Care Hospitals · Brownsville, TXChristus St Michael Health System
Acute Care Hospitals · Texarkana, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95355 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MODESTO, CA 95355
MODESTO, CA 95355
MODESTO, CA 95355
MODESTO, CA 95355
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 Addison Chan's NPI number?
The NPI number for Addison Chan is 1568791994. It was assigned to this individual provider in the NPPES registry on December 14, 2009.
Where is Addison Chan located?
Addison Chan practices at 1700 Coffee Rd Emergency Department, Modesto, CA 95355. The listed phone number is (209) 526-4500.
What is Addison Chan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Addison Chan enrolled in Medicare?
Yes. Addison Chan 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 Addison Chan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Addison Chan reassigns Medicare benefits to 10 organizations: Cep America - California (Modesto, CA), St. Joseph's Hospital And Health Center (Beach, ND), Sound Physicians Emergency Medicine Of Texas PLLC (Killeen, TX), Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Acute Care Specialists (Longview, TX) and 5 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 Addison Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Addison Chan accept?
Health plans from Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health and Oscar Insurance Company list Addison Chan 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 Addison Chan affiliated with any hospitals?
According to CMS data, Addison Chan is affiliated with Hca Houston Healthcare Clear Lake, Valley Regional Medical Center and Christus St Michael Health System.
When was this NPI record last updated?
The NPPES record for Addison Chan was last updated on February 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Addison Chan · NPI 1568791994
Emergency Medicine physician in Modesto, California. Individual provider, active in the CMS NPPES registry since December 14, 2009.
## Identity
- **NPI:** 1568791994 (Entity type: Individual)
- **Enumerated:** December 14, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OS022272 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1700 COFFEE RD, EMERGENCY DEPARTMENT, Modesto, CA 95355-2803
- **Phone:** (209) 526-4500
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Cep America - California (NPI 1396044491, Modesto, CA); St. Joseph's Hospital And Health Center (NPI 1669491262, Beach, ND); Sound Physicians Emergency Medicine Of Texas PLLC (NPI 1518475557, Killeen, TX); Emergency Medicine Services Of Tx, PLLC (NPI 1245938729, San Antonio, TX); Acute Care Specialists (NPI 1740655273, Longview, TX); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** February 13, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1568791994) · Data from the CMS NPPES public registry.