CHRISTINA CHOU MD
NPI 1164749628
Internal Medicine - Gastroenterology in San Francisco, CA
About Christina Chou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINA CHOU MD (NPI 1164749628) is an individual gastroenterology provider in San Francisco, California, licensed in California (1000579) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2010).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
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
Christina Chou Md 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 Reassignment
Medicare enrollment records show Christina Chou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Alameda, CA 94501
- Reassigned Medicare billing, California enrollment
- 900 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 9
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 94109 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94109
SAN FRANCISCO, CA 94109
SAN FRANCISCO, CA 94109
SAN FRANCISCO, CA 94109
SAN FRANCISCO, CA 94109
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 Christina Chou's NPI number?
The NPI number for Christina Chou is 1164749628. It was assigned to this individual provider in the NPPES registry on April 23, 2010.
Where is Christina Chou located?
Christina Chou practices at 1100 Van Ness Ave Fl 3, San Francisco, CA 94109. The listed phone number is (415) 600-1000.
What is Christina Chou's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Christina Chou enrolled in Medicare?
Yes. Christina Chou 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 organization bills Medicare for Christina Chou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Chou reassigns Medicare benefits to Alameda Health System (Alameda, CA). The 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 Christina Chou'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 Christina Chou was last updated on March 7, 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.
# Christina Chou, MD · NPI 1164749628
Gastroenterology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 23, 2010.
## Identity
- **NPI:** 1164749628 (Entity type: Individual)
- **Enumerated:** April 23, 2010
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 1000579 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 VAN NESS AVE FL 3, San Francisco, CA 94109
- **Phone:** (415) 600-1000 · **Fax:** (415) 558-7051
## 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:** Alameda Health System (NPI 1124446158, Alameda, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2010
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Other A121796 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1164749628) · Data from the CMS NPPES public registry.