DR. ZEKUN FENG M.D.
NPI 1184965873
Internal Medicine - Cardiovascular Disease in Concord, CA
About Dr. Zekun Feng M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZEKUN FENG M.D. (NPI 1184965873) is an individual cardiovascular disease provider in Concord, California, licensed in California (A159614) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Zekun Feng M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Zekun Feng reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 213 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Zekun Feng's NPI number?
The NPI number for Zekun Feng is 1184965873. It was assigned to this individual provider in the NPPES registry on March 6, 2013.
Where is Zekun Feng located?
Zekun Feng practices at 2700 Grant St Ste 319, Concord, CA 94520. The listed phone number is (925) 674-2880.
What is Zekun Feng's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Zekun Feng enrolled in Medicare?
Yes. Zekun Feng is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Zekun Feng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zekun Feng reassigns Medicare benefits to 5 organizations: John Muir Physician Network (Walnut Creek, CA), Pacific Inpatient Medical Group (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). 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 Zekun Feng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Zekun Feng was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Zekun Feng, M.D. · NPI 1184965873
Cardiovascular Disease physician in Concord, California. Individual provider, active in the CMS NPPES registry since March 6, 2013.
## Identity
- **NPI:** 1184965873 (Entity type: Individual)
- **Enumerated:** March 6, 2013
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** A159614 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2700 GRANT ST STE 319, Concord, CA 94520-2266
- **Phone:** (925) 674-2880
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): John Muir Physician Network (NPI 1841407665, Walnut Creek, CA); Pacific Inpatient Medical Group (NPI 1447447248, San Francisco, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184965873) · Data from the CMS NPPES public registry.