DR. WALTER JING YU CHOU M.D.
NPI 1477824498
Internal Medicine - Pulmonary Disease in San Diego, CA
About Dr. Walter Jing Yu Chou M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WALTER JING YU CHOU M.D. (NPI 1477824498) is an individual pulmonary disease provider in San Diego, California, licensed in California (A122574) and active in the NPI registry since January 2012. He is enrolled in Medicare PECOS and is a graduate of Wayne State University School Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Walter Jing Yu Chou 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
4Medicare enrollment records show Walter Chou reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1336267137 (California)
- 129 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 50 clinicians in this Medicare group
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 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 8
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 92103 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.
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Walter Chou's NPI number?
The NPI number for Walter Chou is 1477824498. It was assigned to this individual provider in the NPPES registry on January 23, 2012.
Where is Walter Chou located?
Walter Chou practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.
What is Walter Chou's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Walter Chou enrolled in Medicare?
Yes. Walter 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 organizations bill Medicare for Walter Chou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walter Chou reassigns Medicare benefits to 4 organizations: Regents Of The University Of California (San Diego, CA), Emergency And Acute Care Medical Corporation (San Diego, CA), Chest Medicine And Critical Care Medical Group, Inc. (San Diego, CA) and Sharp Rees-Stealy Medical Group, Inc (San Diego, 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 Walter 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 Walter Chou was last updated on October 22, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Walter Jing Yu Chou, M.D. · NPI 1477824498
Pulmonary Disease physician in San Diego, California. Individual provider, active in the CMS NPPES registry since January 23, 2012.
## Identity
- **NPI:** 1477824498 (Entity type: Individual)
- **Enumerated:** January 23, 2012
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** A122574 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 W ARBOR DR, San Diego, CA 92103-9000
- **Phone:** (800) 926-8273
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1386762300, San Diego, CA); Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA); Chest Medicine And Critical Care Medical Group, Inc. (NPI 1841292521, San Diego, CA); Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** October 22, 2018
- **Other identifiers:** Other 113778 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1477824498) · Data from the CMS NPPES public registry.