John Zhang
- Medicare services, 2024
- 44
- Medicare patients, 2024
- 55
- Part D claims, 2024
- 203
- Hospital affiliations
- 1
- Industry payments
- $866
- Practice address
- 3288 Moanalua Rd, Honolulu, HI 96819
- Practice phone
- Call (808) 432-0000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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John Zhang is an emergency medicine physician in Honolulu, Hawaii
John Zhang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente.
John Zhang's NPI, 1295362432, was assigned on March 26, 2020. John Zhang graduated from Tufts University School of Medicine in 2020. John Zhang holds Hawaii license MD-23326.
- NPI
- 1295362432NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668891458
- NPI enumeration date
- March 26, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (808) 432-0000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Zhang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii
John Zhang's primary practice is Kaiser Permanente Moanalua Medical Center, at 3288 Moanalua Rd, Honolulu, HI 96819 in Honolulu County. The practice phone is (808) 432-0000.
- Kaiser Permanente Moanalua Medical Center3288 Moanalua Rd, Honolulu, HI 96819 · Honolulu CountyPhone(808) 432-0000
Source: Dmand AI Affiliation Data
John Zhang is affiliated with 1 site of care and 1 medical group
John Zhang's primary practice is Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente. The medical group on file is Hawaii Permanente Medical Group (HPMG).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Zhang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Zhang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Moanalua Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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John Zhang is one of 393 emergency medicine physicians in Hawaii
Emergency medicine is John Zhang's primary specialty in the NPI Registry, under taxonomy code 207P00000X. John Zhang is licensed in Hawaii.
Specialties and state licenses
- Emergency medicine, HawaiiPrimary
Emergency medicine physicians near John Zhang
Counts of emergency medicine physicians 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
John Zhang billed Medicare for 44 services in 2024
CMS data shows 44 Medicare services from John Zhang across 2 procedure codes in 2024, for 55 Medicare patients. Medicare paid $2,933 for them. Every service was in a facility, such as a hospital, rather than an office.
John Zhang compared with the Hawaii median for emergency medicine physicians, 2024
- John Zhang
- Hawaii median
- Medicare services
- 44vs 22981% below
- Medicare patients
- 55vs 20473% below
- Part D claims
- 43vs 7240% below
Medians across 378 emergency medicine physicians in Hawaii with Dmand AI profiles that report each measure.
John Zhang'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
John Zhang treated 55 Medicare patients in 2024, average age 75
CMS counts 55 Medicare patients who saw John Zhang in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.19, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts John Zhang's median patient age at 38, with 56% women.
John Zhang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Zhang's Medicare patients by sex, 2024
- Women2647%
- Men2953%
Chronic conditions among John Zhang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease55%
- Diabetes53%
- Heart failure38%
- Ischemic heart disease38%
- Arthritis36%
- Alzheimer's and dementia29%
Share of Medicare patients with each condition. A patient can have several.
John Zhang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John Zhang wrote 203 Medicare Part D claims in 2024
In 2024, John Zhang wrote 203 Medicare Part D claims for 148 patients. 89% of them were for generic drugs. CMS names the drug for 43 of them, across 2 drugs with 11 or more claims each, at $859 in total drug cost.
John Zhang's Part D claims by kind of drug, 2024
- Generic181 claims89%
- Brand-name and other22 claims11%
John Zhang'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 John Zhang's Part D claims, 2024
- Opioids6%12 of 203 claims
- Antibiotics35%71 of 203 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How John Zhang takes part in Medicare
John Zhang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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John Zhang received $866 in industry payments from 2023 to 2025
CMS Open Payments shows 9 general payments to John Zhang from 4 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $487.
General payments to John Zhang by program year, 2023 to 2025
Companies that paid John Zhang the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John Zhang graduated from Tufts University School of Medicine
John Zhang graduated from Tufts University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Zhang'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 John Zhang
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What is John Zhang's NPI number?
John Zhang's NPI number is 1295362432. It was assigned on March 26, 2020, and it is active in the NPI Registry.
What does John Zhang specialize in?
John Zhang is an emergency medicine physician in Honolulu, Hawaii. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does John Zhang practice?
John Zhang practices at 3288 Moanalua Rd, Honolulu, HI 96819. John Zhang's primary practice is Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente.
What is John Zhang's office phone number?
The practice phone on file for John Zhang is (808) 432-0000.
What is John Zhang's medical license number?
John Zhang holds Hawaii license MD-23326.
Which hospitals is John Zhang affiliated with?
John Zhang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii.
What medical group is John Zhang part of?
John Zhang is linked to Hawaii Permanente Medical Group (HPMG).
Does John Zhang accept Medicare?
Yes. CMS data shows John Zhang billed Medicare for 44 services in 2024, and John Zhang accepts Medicare assignment.
How many Medicare patients does John Zhang see?
CMS counts 55 Medicare patients who saw John Zhang in 2024, with an average age of 75.
What services does John Zhang bill to Medicare?
In 2024, John Zhang's most billed Medicare services were emergency department visit (99283) and emergency department visit (99285).
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Where did John Zhang go to medical school?
John Zhang graduated from Tufts University School of Medicine in 2020.
What drugs does John Zhang prescribe most?
In 2024 Medicare Part D data, John Zhang's most prescribed drugs by claims were Cefpodoxime Proxetil and Prednisone.
Has John Zhang received payments from drug or device companies?
CMS Open Payments shows $866 in general payments to John Zhang from 4 companies from 2023 to 2025. The largest total came from Stryker Corporation.
How long has John Zhang been practicing?
John Zhang graduated from medical school in 2020, 6 years ago.
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