Dr. James Chiang, MD
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 102
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $300
- Practice address
- 1777 West Yosemite Ave, Manteca, CA 95337
- Practice phone
- Call (209) 825-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chiang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. James Chiang is an emergency medicine physician in Manteca, California
Dr. Chiang practices at Manteca Medical Center in Manteca, California, part of Kaiser Permanente.
Dr. Chiang's NPI, 1619418050, was assigned on March 18, 2017. Dr. Chiang graduated from Loma Linda University School Of Medicine in 2017. Dr. Chiang's California license number on file is A167264.
- NPI
- 1619418050NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678980703
- NPI enumeration date
- March 18, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 825-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Chiang practices at Manteca Medical Center in Manteca, California
Dr. Chiang's primary practice is Manteca Medical Center, at 1777 West Yosemite Ave, Manteca, CA 95337 in San Joaquin County. The practice phone is (209) 825-3700.
- Manteca Medical Center1777 West Yosemite Ave, Manteca, CA 95337 · San Joaquin CountyPhone(209) 825-3700
Source: Dmand AI Affiliation Data
Dr. James Chiang is affiliated with 2 sites of care and 1 medical group
Dr. Chiang's primary practice is Manteca Medical Center in Manteca, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chiang to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Chiang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Manteca Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Chiang is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Chiang's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chiang is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Chiang has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Chiang
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
Dr. James Chiang treated 12 Medicare patients in 2024, average age 69
CMS counts 12 Medicare patients who saw Dr. Chiang in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 2.55, 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. Chiang's median patient age at 37, with 59% women.
Dr. Chiang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chiang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Chiang wrote 102 Medicare Part D claims in 2024
In 2024, Dr. Chiang wrote 102 Medicare Part D claims for 51 patients. 87% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $588 in total drug cost. In 2022, CMS named 55 claims across 4 drugs.
Dr. Chiang's Part D claims by kind of drug, 2024
- Generic89 claims87%
- Brand-name and other13 claims13%
Dr. Chiang's most prescribed drugs by claims, 2023
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. Chiang's Part D claims, 2024
- Antibiotics16%16 of 102 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 552023: 4224%
Drugs named by CMS: 3 in 2023, 4 in 2022.
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 Dr. James Chiang takes part in Medicare
Dr. Chiang 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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Dr. James Chiang has 1 publication on record
Dmand AI links 1 paper to Dr. Chiang in 2020. Dr. Chiang's most frequent co-authors are Latha Ganti, MD, Andrew Hanna, MD and David Craig Lebowitz, MD.
Dr. Chiang's most frequent co-authors
Recent publications by Dr. Chiang
See who Dr. Chiang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chiang works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Chiang received $300 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Chiang from 1 drug or device company in 2025. Consulting fees make up the largest share, 100% of the total. Rivanna Medical, Inc paid the most, $300.
Companies that paid Dr. Chiang the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Chiang graduated from Loma Linda University School Of Medicine
Dr. Chiang graduated from Loma Linda University School Of Medicine in 2017.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. James Chiang accepts plans from 2 insurance carriers
Dr. Chiang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chiang accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. James Chiang'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. James Chiang
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. James Chiang's NPI number?
Dr. James Chiang's NPI number is 1619418050. It was assigned on March 18, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. James Chiang?
Dr. James Chiang is an emergency medicine physician in Manteca, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. James Chiang practice?
Dr. Chiang practices at 1777 West Yosemite Ave, Manteca, CA 95337. Dr. Chiang's primary practice is Manteca Medical Center in Manteca, California, part of Kaiser Permanente. Dmand AI also links Dr. Chiang to 1 group practice or clinic.
What is Dr. James Chiang's office phone number?
The practice phone on file for Dr. Chiang is (209) 825-3700.
What is Dr. James Chiang's medical license number?
Dr. Chiang's California license number on file is A167264.
Which hospitals is Dr. James Chiang affiliated with?
Dr. Chiang practices at Manteca Medical Center in Manteca, California.
What medical group is Dr. James Chiang part of?
Dr. Chiang is linked to The Permanente Medical Group, Inc.
Does Dr. James Chiang accept Medicare?
Yes. CMS lists Dr. Chiang as accepting Medicare assignment.
How many Medicare patients does Dr. James Chiang see?
CMS counts 12 Medicare patients who saw Dr. Chiang in 2024, with an average age of 69.
Is Dr. James Chiang board certified?
Yes. Dr. Chiang is board certified in emergency medicine by the American Board of Emergency Medicine.
Show 7 more questionsShow fewer questions
Where did Dr. James Chiang go to medical school?
Dr. Chiang graduated from Loma Linda University School Of Medicine in 2017.
What drugs does Dr. James Chiang prescribe most?
In 2023 Medicare Part D data, Dr. Chiang's most prescribed drugs by claims were Ondansetron ODT, Ibuprofen and Diclofenac Sodium.
Has Dr. James Chiang received payments from drug or device companies?
CMS Open Payments shows $300 in general payments to Dr. Chiang from 1 company from 2025 to 2025. The largest total came from Rivanna Medical, Inc.
How long has Dr. James Chiang been practicing?
Dr. Chiang graduated from medical school in 2017, 9 years ago.
Does Dr. James Chiang do research?
Dmand AI links 1 publication to Dr. Chiang.
Who does Dr. James Chiang publish with?
Dr. Chiang's most frequent co-authors are Latha Ganti, MD (1 shared paper), Andrew Hanna, MD (1 shared paper) and David Craig Lebowitz, MD (1 shared paper).
What insurance does Dr. James Chiang accept?
Dr. Chiang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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