Heart Rupture, Post-InfarctionPapillary MusclesShock, Cardiogenic
Dr. Eric Melvin Chwa, MD
NPI1962433607PAC ID6507981487
- Medicare services, 2024
- 1,493
- Medicare patients, 2024
- 223
- Part D claims, 2024
- 5,739
- Publications
- 1
- Industry payments
- $13,350
- Practice address
- 632 W Duarte Rd, Arcadia, CA 91007-7608
- Practice phone
- Call (626) 821-6411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eric Chwa
Multi-specialty group site · Arcadia, California
Find Dr. Chwa's professional email, personal email and mobile number
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Dr. Eric Melvin Chwa is an internist in Arcadia, California
Dr. Chwa practices at Eric Chwa in Arcadia, California.
Dr. Chwa's NPI, 1962433607, was assigned on July 5, 2006. Dr. Chwa graduated from University Institute of Medicine 1 in 1981. Dr. Chwa holds California license A49506.
NPI and contact details
- NPI
- 1962433607NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507981487
- NPI enumeration date
- July 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 821-6411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eric Melvin Chwa practices at Eric Chwa in Arcadia, California
Dr. Chwa's primary practice is Eric Chwa, at 632 W Duarte Rd, Arcadia, CA 91007-7608. The practice phone is (626) 821-6411.
- Eric Chwa632 W Duarte Rd, Arcadia, CA 91007-7608Phone(626) 821-6411
Source: Dmand AI Affiliation Data
Dr. Eric Melvin Chwa is affiliated with 2 sites of care and 1 medical group
Dr. Chwa's primary practice is Eric Chwa in Arcadia, California. Dmand AI also links Dr. Chwa to 1 skilled nursing facility and 1 medical group, each named with a free account.
Eric ChwaPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Eric Melvin Chwa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chwa practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eric Chwa | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric Melvin Chwa is one of 16,751 internists in California
Internal medicine is Dr. Chwa's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Chwa's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Maryland license
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, arteritis, arthritis, asthma, atrial fibrillation and flutter and bile duct problems among the conditions Dr. Chwa treats.
Internists near Dr. Chwa
Counts of internists 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. Eric Melvin Chwa billed Medicare for 1,493 services in 2024
CMS data shows 1,493 Medicare services from Dr. Chwa across 14 procedure codes in 2024, for 223 Medicare patients. Medicare paid $105,085 for them.
Medicare services, 20241,493
Medicare patients223
Paid by Medicare$105,085
Procedure codes14
Dr. Chwa's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0212024: 1,018No change
- Other services
- 2023: 4462024: 34423%
- Tests and treatments
- 2023: 1312024: 131No change
Where Dr. Chwa's Medicare services took place, 2024
- In an office1,32889%
- In a facility16511%
Dr. Chwa compared with the California median for internists, 2024
- Dr. Chwa
- California median
- Medicare services
- 1,493vs 3614.1 times
- Medicare patients
- 223vs 15148% above
- Part D claims
- 5,204vs 42112.4 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chwa'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.
Need commercial claims for Dr. Chwa?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chwa and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric Melvin Chwa treated 223 Medicare patients in 2024, average age 76
CMS counts 223 Medicare patients who saw Dr. Chwa in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chwa's median patient age at 69, with 52% women.
Medicare patients, 2024223
Average age76
Average risk score1.25
Also on Medicaid29%
Dr. Chwa's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chwa's Medicare patients by sex, 2024
- Women13862%
- Men8538%
Chronic conditions among Dr. Chwa's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes52%
- Arthritis39%
- Chronic kidney disease32%
- Osteoporosis22%
- Ischemic heart disease21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chwa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric Melvin Chwa wrote 5,739 Medicare Part D claims in 2024
In 2024, Dr. Chwa wrote 5,739 Medicare Part D claims for 423 patients. 93% of them were for generic drugs. CMS names the drug for 5,204 of them, across 91 drugs with 11 or more claims each, at $261,198 in total drug cost. In 2023, CMS named 5,698 claims across 103 drugs.
Part D claims, 20245,739
Drugs named by CMS91
Total drug cost$261,198
Part D patients423
Dr. Chwa's Part D claims by kind of drug, 2024
- Generic5,357 claims93%
- Brand-name359 claims6%
- Other23 claims0%
Dr. Chwa'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. Chwa's Part D claims, 2024
- Opioids1%67 of 5,739 claims
- Antibiotics3%150 of 5,739 claims
- Antipsychotics, patients 65 and over0%21 of 5,739 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: 5,6982024: 5,2049%
Drugs named by CMS: 91 in 2024, 103 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
How Dr. Eric Melvin Chwa takes part in Medicare
Dr. Chwa 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. Eric Melvin Chwa has 1 publication on record
Dmand AI links 1 paper to Dr. Chwa.
Papers1
Recent publications by Dr. Chwa
See who Dr. Chwa researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chwa works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Eric Melvin Chwa received $13,350 in industry payments from 2016 to 2025
CMS Open Payments shows 147 general payments to Dr. Chwa from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Gilead Sciences, Inc. paid the most, $3,916.
General payments to Dr. Chwa by program year, 2016 to 2025
General payments to Dr. Chwa by kind, 2016 to 2025
$13.3Kin total
- Food and beverage$13,25299%
- Education$981%
Companies that paid Dr. Chwa the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eric Melvin Chwa graduated from University Institute of Medicine 1
Dr. Chwa graduated from University Institute of Medicine 1 in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Eric Melvin Chwa accepts plans from 15 insurance carriers
Dr. Chwa is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Chwa accepts, by number of carriers
- PPO10
- Medicare8
- HMO6
- POS6
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Eric Melvin Chwa'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 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) |
| 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. Eric Melvin Chwa
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. Eric Melvin Chwa's NPI number?
Dr. Eric Melvin Chwa's NPI number is 1962433607. It was assigned on July 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric Melvin Chwa?
Dr. Eric Melvin Chwa is an internist in Arcadia, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Eric Melvin Chwa practice?
Dr. Chwa practices at 632 W Duarte Rd, Arcadia, CA 91007-7608. Dr. Chwa's primary practice is Eric Chwa in Arcadia, California. Dmand AI also links Dr. Chwa to 1 skilled nursing facility and 1 medical group.
What is Dr. Eric Melvin Chwa's office phone number?
The practice phone on file for Dr. Chwa is (626) 821-6411.
What is Dr. Eric Melvin Chwa's medical license number?
Dr. Chwa holds California license A49506, one of the licenses on file in 2 states.
Which states has Dr. Eric Melvin Chwa been licensed in?
Dmand AI has state licenses on file for Dr. Chwa in California (1991 to 2027) and Maryland (1992).
Does Dr. Eric Melvin Chwa accept Medicare?
Yes. CMS data shows Dr. Chwa billed Medicare for 1,493 services in 2024, and Dr. Chwa accepts Medicare assignment.
How many Medicare patients does Dr. Eric Melvin Chwa see?
CMS counts 223 Medicare patients who saw Dr. Chwa in 2024, with an average age of 76.
What services does Dr. Eric Melvin Chwa bill to Medicare?
In 2024, Dr. Chwa's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and medicare service (G0439).
Where did Dr. Eric Melvin Chwa go to medical school?
Dr. Chwa graduated from University Institute of Medicine 1 in 1981.
Show 5 more questionsShow fewer questions
What drugs does Dr. Eric Melvin Chwa prescribe most?
In 2024 Medicare Part D data, Dr. Chwa's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Eric Melvin Chwa received payments from drug or device companies?
CMS Open Payments shows $13,350 in general payments to Dr. Chwa from 29 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Eric Melvin Chwa been practicing?
Dr. Chwa graduated from medical school in 1981, 45 years ago.
Does Dr. Eric Melvin Chwa do research?
Dmand AI links 1 publication to Dr. Chwa.
What insurance does Dr. Eric Melvin Chwa accept?
Dr. Chwa is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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