Dr. Walter Jing Yu Chou, MD
- Medicare services, 2024
- 505
- Medicare patients, 2024
- 255
- Part D claims, 2024
- 108
- MIPS score, 2024
- 89
- Hospital affiliations
- 5
- Practice address
- 7901 Frost St, San Diego, CA 92123
- Practice phone
- Call (858) 939-3400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chou's professional email, personal email and mobile number
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Dr. Walter Jing Yu Chou is a pulmonologist in San Diego, California
Dr. Chou practices at Sharp Memorial Hospital in San Diego, California, part of Sharp HealthCare.
Dr. Chou's NPI, 1477824498, was assigned on January 23, 2012. Dr. Chou graduated from Wayne State University School Of Medicine in 2011. Dr. Chou holds California license A122574.
- NPI
- 1477824498NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799056180
- NPI enumeration date
- January 23, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 939-3400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter Jing Yu Chou practices at Sharp Memorial Hospital in San Diego, California
Dr. Chou's primary practice is Sharp Memorial Hospital, at 7901 Frost St, San Diego, CA 92123 in San Diego County. The practice phone is (858) 939-3400.
- Sharp Memorial Hospital7901 Frost St, San Diego, CA 92123 · San Diego CountyPhone(858) 939-3400
Source: Dmand AI Affiliation Data
Dr. Walter Jing Yu Chou is affiliated with 5 sites of care and 4 medical groups
Dr. Chou's primary practice is Sharp Memorial Hospital in San Diego, California, part of Sharp HealthCare. Dr. Chou is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Chou to 3 more hospitals and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter Jing Yu Chou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chou practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Memorial Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Walter Jing Yu Chou is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Chou's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Chou is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Chou is licensed in California.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure and chronic respiratory failure among the conditions Dr. Chou treats.
Pulmonologists near Dr. Chou
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Walter Jing Yu Chou billed Medicare for 505 services in 2024
CMS data shows 505 Medicare services from Dr. Chou across 8 procedure codes in 2024, for 255 Medicare patients. Medicare paid $62,009 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chou's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4602024: 4532%
- Tests and treatments
- 2023: 02024: 26
- Imaging
- 2023: 02024: 13
- Surgery
- 2023: 242024: 1346%
Dr. Chou compared with the California median for pulmonologists, 2024
- Dr. Chou
- California median
- Medicare services
- 505vs 64922% below
- Medicare patients
- 255vs 2726% below
- Part D claims
- 45vs 42189% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Chou's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter Jing Yu Chou treated 255 Medicare patients in 2024, average age 74
CMS counts 255 Medicare patients who saw Dr. Chou in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 49% are also on Medicaid. Their average risk score is 2.96, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chou's median patient age at 68, with 47% women.
Dr. Chou's Medicare patients by age, 2024
Dr. Chou's Medicare patients by sex, 2024
- Women12047%
- Men13553%
Chronic conditions among Dr. Chou's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Heart failure61%
- Chronic kidney disease58%
- Diabetes58%
- Ischemic heart disease55%
- Atrial fibrillation48%
- Arthritis44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter Jing Yu Chou wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Chou wrote 108 Medicare Part D claims for 22 patients. 59% of them were for generic drugs. CMS names the drug for 45 of them, across 3 drugs with 11 or more claims each, at $18,435 in total drug cost. In 2023, CMS named 16 claims across 1 drug.
Dr. Chou's Part D claims by kind of drug, 2024
- Generic64 claims59%
- Brand-name44 claims41%
Dr. Chou's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chou's Part D claims, 2024
- Antibiotics13%14 of 108 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 162024: 45181%
Drugs named by CMS: 3 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Walter Jing Yu Chou scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Chou for performance year 2024, reported as part of a group. Dr. Chou accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chou's MIPS scores, performance year 2024
- 89of 100Final score
- 81of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 82of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Walter Jing Yu Chou received $607 in industry payments from 2018 to 2025
CMS Open Payments shows 27 general payments to Dr. Chou from 12 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 97% of the total. Philips Electronics North America Corporation paid the most, $149.
General payments to Dr. Chou by program year, 2018 to 2025
General payments to Dr. Chou by kind, 2018 to 2025
- Food and beverage$58797%
- Education$203%
Companies that paid Dr. Chou the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter Jing Yu Chou graduated from Wayne State University School Of Medicine
Dr. Chou graduated from Wayne State University School Of Medicine in 2011.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Walter Jing Yu Chou accepts plans from 6 insurance carriers
Dr. Chou is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Chou accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Walter Jing Yu Chou's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Walter Jing Yu Chou
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Walter Jing Yu Chou's NPI number?
Dr. Walter Jing Yu Chou's NPI number is 1477824498. It was assigned on January 23, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter Jing Yu Chou?
Dr. Walter Jing Yu Chou is a pulmonologist in San Diego, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Walter Jing Yu Chou practice?
Dr. Chou practices at 7901 Frost St, San Diego, CA 92123. Dr. Chou's primary practice is Sharp Memorial Hospital in San Diego, California, part of Sharp HealthCare. Dmand AI also links Dr. Chou to 3 hospitals and 3 medical groups.
What is Dr. Walter Jing Yu Chou's office phone number?
The practice phone on file for Dr. Chou is (858) 939-3400.
What is Dr. Walter Jing Yu Chou's medical license number?
Dr. Chou holds California license A122574.
Which hospitals is Dr. Walter Jing Yu Chou affiliated with?
Dr. Chou practices at Sharp Memorial Hospital in San Diego, California. Dr. Chou is also affiliated with Hillcrest Medical Center. Dmand AI links Dr. Chou to 3 more hospitals.
What medical group is Dr. Walter Jing Yu Chou part of?
Dr. Chou is linked to UC San Diego Health. Dmand AI links Dr. Chou to 3 more medical groups.
Does Dr. Walter Jing Yu Chou accept Medicare?
Yes. CMS data shows Dr. Chou billed Medicare for 505 services in 2024, and Dr. Chou accepts Medicare assignment.
What is Dr. Walter Jing Yu Chou's MIPS score?
Dr. Chou's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Walter Jing Yu Chou see?
CMS counts 255 Medicare patients who saw Dr. Chou in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Walter Jing Yu Chou board certified?
Yes. Dr. Chou is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Walter Jing Yu Chou bill to Medicare?
In 2024, Dr. Chou's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99233).
Where did Dr. Walter Jing Yu Chou go to medical school?
Dr. Chou graduated from Wayne State University School Of Medicine in 2011.
What drugs does Dr. Walter Jing Yu Chou prescribe most?
In 2024 Medicare Part D data, Dr. Chou's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Symbicort.
Has Dr. Walter Jing Yu Chou received payments from drug or device companies?
CMS Open Payments shows $607 in general payments to Dr. Chou from 12 companies from 2018 to 2025. The largest total came from Philips Electronics North America Corporation.
How long has Dr. Walter Jing Yu Chou been practicing?
Dr. Chou graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Walter Jing Yu Chou accept?
Dr. Chou is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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