Dr. Janet K. Onopa, MD
- Medicare services, 2019
- 23
- Part D claims, 2024
- 158
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- 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
Find Dr. Onopa's professional email, personal email and mobile number
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Dr. Janet K. Onopa is an internist in Honolulu, Hawaii
Dr. Onopa practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente.
Dr. Onopa's NPI, 1619039856, was assigned on December 14, 2006. Dr. Onopa graduated from University of Hawaii John A. Burns School of Medicine in 1983. Dr. Onopa holds Hawaii license MD5469.
- NPI
- 1619039856NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587716188
- NPI enumeration date
- December 14, 2006
- 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
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Janet K. Onopa practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii
Dr. Onopa'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
Dr. Janet K. Onopa is affiliated with 2 sites of care and 1 medical group
Dr. Onopa'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). Dmand AI also links Dr. Onopa 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. Janet K. Onopa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Onopa practices, 2 sites in all. 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 |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Janet K. Onopa is one of 771 internists in Hawaii
Internal medicine is Dr. Onopa's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Onopa is licensed in Hawaii.
Specialties and state licenses
- Internal medicine, HawaiiPrimary
Internists near Dr. Onopa
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. Janet K. Onopa billed Medicare for 23 services in 2019
CMS data shows 23 Medicare services from Dr. Onopa across 2 procedure codes in 2019, all of them office visits. Medicare paid $1,056 for them. Every service was in an office.
Dr. Onopa's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 142019: 2364%
Dr. Onopa compared with the Hawaii median for internists, 2019
- Dr. Onopa
- Hawaii median
- Medicare services
- 23vs 34293% below
- Part D claims
- 26vs 67096% below
Medians across 699 internists in Hawaii with Dmand AI profiles that report each measure.
Dr. Onopa's most billed Medicare procedure codes, 2019
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Onopa and other internists in Hawaii.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Janet K. Onopa's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Onopa's median patient age at 50, with 64% women.
Dr. Onopa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women64%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Janet K. Onopa wrote 158 Medicare Part D claims in 2024
In 2024, Dr. Onopa wrote 158 Medicare Part D claims for 105 patients. 82% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $220 in total drug cost. In 2023, CMS named 28 claims across 2 drugs.
Dr. Onopa's Part D claims by kind of drug, 2024
- Generic130 claims82%
- Brand-name and other28 claims18%
Dr. Onopa'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. Onopa's Part D claims, 2024
- Antibiotics34%53 of 158 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: 282024: 267%
Drugs named by CMS: 2 in 2024, 2 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. Janet K. Onopa takes part in Medicare
Dr. Onopa 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. Janet K. Onopa graduated from University of Hawaii John A. Burns School of Medicine
Dr. Onopa graduated from University of Hawaii John A. Burns School of Medicine in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Janet K. Onopa'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 Data |
| 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) |
| 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 Dr. Janet K. Onopa
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. Janet K. Onopa's NPI number?
Dr. Janet K. Onopa's NPI number is 1619039856. It was assigned on December 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Janet K. Onopa?
Dr. Janet K. Onopa is an internist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Janet K. Onopa practice?
Dr. Onopa practices at 3288 Moanalua Rd, Honolulu, HI 96819. Dr. Onopa's primary practice is Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente. Dmand AI also links Dr. Onopa to 1 group practice or clinic.
What is Dr. Janet K. Onopa's office phone number?
The practice phone on file for Dr. Onopa is (808) 432-0000.
What is Dr. Janet K. Onopa's medical license number?
Dr. Onopa holds Hawaii license MD5469.
Which hospitals is Dr. Janet K. Onopa affiliated with?
Dr. Onopa practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii.
What medical group is Dr. Janet K. Onopa part of?
Dr. Onopa is linked to Hawaii Permanente Medical Group (HPMG).
Does Dr. Janet K. Onopa accept Medicare?
Yes. CMS data shows Dr. Onopa billed Medicare for 23 services in 2019, and Dr. Onopa accepts Medicare assignment.
What services does Dr. Janet K. Onopa bill to Medicare?
In 2019, Dr. Onopa's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Janet K. Onopa go to medical school?
Dr. Onopa graduated from University of Hawaii John A. Burns School of Medicine in 1983.
What drugs does Dr. Janet K. Onopa prescribe most?
In 2024 Medicare Part D data, Dr. Onopa's most prescribed drugs by claims were Nitrofurantoin Mono-Macro and Cephalexin.
How long has Dr. Janet K. Onopa been practicing?
Dr. Onopa graduated from medical school in 1983, 43 years ago.
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