DR. DAVID KEE-FUNG SUM M.D.
NPI 1477819258
Anesthesiology in Maywood, IL
About Dr. David Kee-fung Sum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID KEE-FUNG SUM M.D. (NPI 1477819258) is an individual anesthesiology provider in Maywood, Illinois, licensed in Illinois (036143403) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Community First Medical Center, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2012).
NPPES Registry Identity
Specialties & Licenses
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
Dr. David Kee-fung Sum 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
8Medicare enrollment records show David Sum reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Maywood, IL 60153
- Reassigned Medicare billing, Illinois enrollment
- 1,138 clinicians in this Medicare group
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- 63 clinicians in this Medicare group
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- 93 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 385 clinicians in this Medicare group
Geneva, IL 60134
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Huntley, IL 60142
- Reassigned Medicare billing, Illinois enrollment
- 70 clinicians in this Medicare group
Woodstock, IL 60098
- Reassigned Medicare billing, Illinois enrollment
- 87 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
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.
Community First Medical Center
Acute Care Hospitals · Chicago, ILLoyola University Medical Center
Acute Care Hospitals · Maywood, ILOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MAYWOOD, IL 60153
MAYWOOD, IL 60153
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 David Sum's NPI number?
The NPI number for David Sum is 1477819258. It was assigned to this individual provider in the NPPES registry on April 6, 2012.
Where is David Sum located?
David Sum practices at 2160 S 1st Ave, Maywood, IL 60153. The listed phone number is (708) 216-9000.
What is David Sum's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is David Sum enrolled in Medicare?
Yes. David Sum 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 David Sum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Sum reassigns Medicare benefits to 8 organizations: Loyola University Medical Center (Maywood, IL), Advocate Health And Hospitals Corporation (Oak Brook, IL), Oak Brook Anesthesiologists, Ltd. (Oak Brook, IL), Midwest Anesthesiologists, Ltd. (Oak Lawn, IL), Midwest Anesthesia Partners, LLC (Chicago, IL) and 3 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 David Sum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Sum accept?
Health plans from Oscar Health list David Sum 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 David Sum affiliated with any hospitals?
According to CMS data, David Sum is affiliated with Community First Medical Center and Loyola University Medical Center.
When was this NPI record last updated?
The NPPES record for David Sum was last updated on November 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.
# Dr. David Kee-Fung Sum, M.D. · NPI 1477819258
Anesthesiology physician in Maywood, Illinois. Individual provider, active in the CMS NPPES registry since April 6, 2012.
## Identity
- **NPI:** 1477819258 (Entity type: Individual)
- **Enumerated:** April 6, 2012
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036143403 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2160 S 1ST AVE, Maywood, IL 60153-3328
- **Phone:** (708) 216-9000
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Loyola University Medical Center (NPI 1336159961, Maywood, IL); Advocate Health And Hospitals Corporation (NPI 1700824455, Oak Brook, IL); Oak Brook Anesthesiologists, Ltd. (NPI 1881705937, Oak Brook, IL); Midwest Anesthesiologists, Ltd. (NPI 1447209390, Oak Lawn, IL); Midwest Anesthesia Partners, LLC (NPI 1255380184, Chicago, IL); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Rochester School Of Medicine And Dentistry, class of 2012
## Record status
- **NPPES last updated:** November 7, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477819258) · Data from the CMS NPPES public registry.