Dr. Michael William Heffner, MD
- Part D claims, 2024
- 32
- Publications
- 6
- Hospital affiliations
- 1
- Industry payments
- $19,019
- Medical groups
- 2
- Practice address
- 80 Mahalani Street, Wailuku, HI 96793
- Practice phone
- Call (808) 243-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Wailuku Clinic - ASC
Surgery Center - Medicare-Certified · Wailuku, Hawaii
Find Dr. Heffner's professional email, personal email and mobile number
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Dr. Michael William Heffner is an orthopedic surgeon in Wailuku, Hawaii
Dr. Heffner practices at Kaiser Wailuku Clinic - ASC in Wailuku, Hawaii.
Dr. Heffner's NPI, 1528565637, was assigned on April 6, 2018. Dr. Heffner graduated from University of California, San Diego School of Medicine in 2018. Dr. Heffner holds Hawaii license MD-24525.
- NPI
- 1528565637NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880046028
- NPI enumeration date
- April 6, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (808) 243-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael William Heffner practices at Kaiser Wailuku Clinic - ASC in Wailuku, Hawaii
Dr. Heffner's primary practice is Kaiser Wailuku Clinic - ASC, at 80 Mahalani Street, Wailuku, HI 96793. The practice phone is (808) 243-6000.
- Kaiser Wailuku Clinic - ASC80 Mahalani Street, Wailuku, HI 96793Phone(808) 243-6000
Source: Dmand AI Affiliation Data
Dr. Michael William Heffner is affiliated with 4 sites of care and 2 medical groups
Dr. Heffner's primary practice is Kaiser Wailuku Clinic - ASC in Wailuku, Hawaii. Dr. Heffner is also affiliated with Maui Memorial Medical Center. The medical group on file is Hawaii Permanente Medical Group (HPMG). Dmand AI also links Dr. Heffner to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael William Heffner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Heffner practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Wailuku Clinic - ASC | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael William Heffner is one of 109 orthopedic surgeons in Hawaii
Orthopaedic surgery is Dr. Heffner's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Heffner is licensed in Hawaii.
Specialties and state licenses
- Orthopaedic surgery, HawaiiPrimary
Orthopedic surgeons near Dr. Heffner
Counts of orthopedic surgeons 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. Michael William Heffner's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Heffner's median patient age at 45, with 40% women.
Dr. Heffner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Michael William Heffner wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Heffner wrote 32 Medicare Part D claims for 17 patients. 100% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $151 in total drug cost. In 2020, CMS named 34 claims across 2 drugs.
Dr. Heffner'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.
Drug classes CMS tracks in Dr. Heffner's Part D claims, 2024
- Opioids41%13 of 32 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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 342021: 1750%
Drugs named by CMS: 1 in 2021, 2 in 2020.
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
Dr. Michael William Heffner offers telehealth to Medicare patients
Dr. Heffner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Heffner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael William Heffner has 6 publications on record
Dmand AI links 6 papers to Dr. Heffner, published from 2021 to 2024. 2021 was the busiest year, with 2. The most frequent topics are Femur. Dr. Heffner's most frequent co-authors are Malcolm Debaun, MD, David Y. Ding, MD and Julius Anthony Bishop, MD.
Dr. Heffner's papers by year, 2021 to 2024
Topics Dr. Heffner writes about most
- Femur
Dr. Heffner's most frequent co-authors
- Malcolm Debaun, MD2 shared papers
- David Y. Ding, MD2 shared papers
- Julius Anthony Bishop, MD1 shared paper
Recent publications by Dr. Heffner
See who Dr. Heffner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Heffner works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael William Heffner received $19,019 in industry payments from 2019 to 2025
CMS Open Payments shows 61 general payments to Dr. Heffner from 11 drug and device companies from 2019 to 2025. Education make up the largest share, 50% of the total. Evolution Surgical, Inc paid the most, $9,625.
General payments to Dr. Heffner by program year, 2019 to 2025
General payments to Dr. Heffner by kind, 2019 to 2025
- Education$9,56050%
- Travel and lodging$5,80231%
- Food and beverage$2,30612%
- Honoraria$1,3507%
Companies that paid Dr. Heffner the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael William Heffner graduated from University of California, San Diego School of Medicine
Dr. Heffner graduated from University of California, San Diego School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael William Heffner'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)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)Doctors and Clinicians Utilization Data (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 |
| 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. Michael William Heffner
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. Michael William Heffner's NPI number?
Dr. Michael William Heffner's NPI number is 1528565637. It was assigned on April 6, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael William Heffner?
Dr. Michael William Heffner is an orthopedic surgeon in Wailuku, Hawaii. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Michael William Heffner practice?
Dr. Heffner practices at 80 Mahalani Street, Wailuku, HI 96793. Dr. Heffner's primary practice is Kaiser Wailuku Clinic - ASC in Wailuku, Hawaii. Dmand AI also links Dr. Heffner to 2 group practices and clinics and 1 medical group.
What is Dr. Michael William Heffner's office phone number?
The practice phone on file for Dr. Heffner is (808) 243-6000.
What is Dr. Michael William Heffner's medical license number?
Dr. Heffner holds Hawaii license MD-24525.
Which hospitals is Dr. Michael William Heffner affiliated with?
Dr. Heffner is affiliated with Maui Memorial Medical Center.
What medical group is Dr. Michael William Heffner part of?
Dr. Heffner is linked to Hawaii Permanente Medical Group (HPMG). Dmand AI links Dr. Heffner to 1 more medical group.
Does Dr. Michael William Heffner accept Medicare?
Yes. CMS lists Dr. Heffner as accepting Medicare assignment.
Does Dr. Michael William Heffner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Heffner as offering telehealth services.
Where did Dr. Michael William Heffner go to medical school?
Dr. Heffner graduated from University of California, San Diego School of Medicine in 2018.
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What drugs does Dr. Michael William Heffner prescribe most?
In 2021 Medicare Part D data, Dr. Heffner's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Michael William Heffner received payments from drug or device companies?
CMS Open Payments shows $19,019 in general payments to Dr. Heffner from 11 companies from 2019 to 2025. The largest total came from Evolution Surgical, Inc.
How long has Dr. Michael William Heffner been practicing?
Dr. Heffner graduated from medical school in 2018, 8 years ago.
Does Dr. Michael William Heffner do research?
Dmand AI links 6 publications to Dr. Heffner, published from 2021 to 2024.
Who does Dr. Michael William Heffner publish with?
Dr. Heffner's most frequent co-authors are Malcolm Debaun, MD (2 shared papers), David Y. Ding, MD (2 shared papers) and Julius Anthony Bishop, MD (1 shared paper).
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