Dr. Chayanin Hamada, MD
- Part D claims, 2021
- 14
- MIPS score, 2024
- 97
- Hospital affiliations
- 1
- Industry payments
- $380
- Medical groups
- 2
- Practice address
- 1301 Punchbowl St, Honolulu, HI 96813
- Practice phone
- Call (808) 538-9011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hamada's professional email, personal email and mobile number
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Dr. Chayanin Hamada is a child and adolescent psychiatrist in Honolulu, Hawaii
Dr. Hamada practices at The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems.
Dr. Hamada's NPI, 1639603566, was assigned on April 18, 2017. Dr. Hamada holds Hawaii license MD-22173.
- NPI
- 1639603566NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395123616
- NPI enumeration date
- April 18, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (808) 538-9011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chayanin Hamada practices at The Queen's Medical Center in Honolulu, Hawaii
Dr. Hamada's primary practice is The Queen's Medical Center, at 1301 Punchbowl St, Honolulu, HI 96813 in Honolulu County. The practice phone is (808) 538-9011.
- The Queen's Medical Center1301 Punchbowl St, Honolulu, HI 96813 · Honolulu CountyPhone(808) 538-9011
Source: Dmand AI Affiliation Data
Dr. Chayanin Hamada is affiliated with 1 site of care and 2 medical groups
Dr. Hamada's primary practice is The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems. The medical group on file is The Queen's Medical Center. Dmand AI also links Dr. Hamada to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Chayanin Hamada's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamada practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Queen's Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across The Queen's Health Systems and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Chayanin Hamada is one of 30 childs and adolescent psychiatrists in Hawaii
Child and adolescent psychiatry is Dr. Hamada's primary specialty in the NPI Registry, under taxonomy code 2084P0804X. Dmand AI has Dr. Hamada's licenses on file in 2 states: Hawaii and Massachusetts.
Specialties and state licenses
- Child and adolescent psychiatry, HawaiiPrimary
- Massachusetts license
Childs and adolescent psychiatrists near Dr. Hamada
Counts of childs and adolescent psychiatrists 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. Chayanin Hamada's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Hamada's median patient age at 55, with 65% women.
Dr. Hamada's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Chayanin Hamada wrote 14 Medicare Part D claims in 2021
In 2021, Dr. Hamada wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $56 in total drug cost. In 2020, CMS named 239 claims across 13 drugs.
Dr. Hamada's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 2392021: 1494%
Drugs named by CMS: 1 in 2021, 13 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Chayanin Hamada scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Hamada for performance year 2024, reported through an alternative payment model (APM). Dr. Hamada accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hamada as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Hamada's MIPS scores, performance year 2024
- 97of 100Final score
- 89.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Chayanin Hamada received $380 in industry payments from 2024 to 2025
CMS Open Payments shows 13 general payments to Dr. Hamada from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $126.
General payments to Dr. Hamada by program year, 2024 to 2025
Companies that paid Dr. Hamada the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Chayanin Hamada'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Chayanin Hamada
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. Chayanin Hamada's NPI number?
Dr. Chayanin Hamada's NPI number is 1639603566. It was assigned on April 18, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Chayanin Hamada?
Dr. Chayanin Hamada is a child and adolescent psychiatrist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Child & Adolescent Psychiatry Physician (taxonomy code 2084P0804X).
Where does Dr. Chayanin Hamada practice?
Dr. Hamada practices at 1301 Punchbowl St, Honolulu, HI 96813. Dr. Hamada's primary practice is The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems. Dmand AI also links Dr. Hamada to 1 medical group.
What is Dr. Chayanin Hamada's office phone number?
The practice phone on file for Dr. Hamada is (808) 538-9011.
What is Dr. Chayanin Hamada's medical license number?
Dr. Hamada holds Hawaii license MD-22173, one of the licenses on file in 2 states.
Which states has Dr. Chayanin Hamada been licensed in?
Dmand AI has state licenses on file for Dr. Hamada in Hawaii and Massachusetts.
Which hospitals is Dr. Chayanin Hamada affiliated with?
Dr. Hamada practices at The Queen's Medical Center in Honolulu, Hawaii.
What medical group is Dr. Chayanin Hamada part of?
Dr. Hamada is linked to The Queen's Medical Center. Dmand AI links Dr. Hamada to 1 more medical group.
Does Dr. Chayanin Hamada accept Medicare?
Yes. CMS lists Dr. Hamada as accepting Medicare assignment.
Does Dr. Chayanin Hamada offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hamada as offering telehealth services.
Show 4 more questionsShow fewer questions
What is Dr. Chayanin Hamada's MIPS score?
Dr. Hamada's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).
What drugs does Dr. Chayanin Hamada prescribe most?
In 2021 Medicare Part D data, Dr. Hamada's most prescribed drugs by claims were Fluoxetine HCl.
Has Dr. Chayanin Hamada received payments from drug or device companies?
CMS Open Payments shows $380 in general payments to Dr. Hamada from 4 companies from 2024 to 2025. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. Chayanin Hamada been practicing?
Dr. Hamada graduated from medical school in 2014, 12 years ago.
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