Dr. Loi M. Chang-Stroman, MD
- Medicare services, 2024
- 1,596
- Medicare patients, 2024
- 744
- Part D claims, 2024
- 1,183
- MIPS score, 2024
- 69
- Hospital affiliations
- 1
- Practice address
- 100 SW Market St, Portland, OR 97201
- Practice phone
- Call (808) 329-6355
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
West Hawaii Medical Group Hualalai Urgent Care
Urgent Care Center · Portland, Oregon
Find Dr. Chang-Stroman'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. Loi M. Chang-Stroman is an internist in Portland, Oregon
Dr. Chang-Stroman practices at West Hawaii Medical Group Hualalai Urgent Care in Portland, Oregon.
Dr. Chang-Stroman's NPI, 1780770529, was assigned on October 5, 2006. Dr. Chang-Stroman graduated from Howard University College of Medicine in 1987. Dr. Chang-Stroman holds Hawaii license 8269.
- NPI
- 1780770529NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517973530
- NPI enumeration date
- October 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (808) 329-6355
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Loi M. Chang-Stroman practices at West Hawaii Medical Group Hualalai Urgent Care in Portland, Oregon
Dr. Chang-Stroman's primary practice is West Hawaii Medical Group Hualalai Urgent Care, at 100 SW Market St, Portland, OR 97201. The practice phone is (808) 329-6355.
- West Hawaii Medical Group Hualalai Urgent Care100 SW Market St, Portland, OR 97201Phone(808) 329-6355
Source: Dmand AI Affiliation Data
Dr. Loi M. Chang-Stroman is affiliated with 3 sites of care and 1 medical group
Dr. Chang-Stroman's primary practice is West Hawaii Medical Group Hualalai Urgent Care in Portland, Oregon. Dr. Chang-Stroman is also affiliated with Kona Community Hospital. The medical group on file is West Hawaii Medical Group Hualalai Urgent Care. Dmand AI also links Dr. Chang-Stroman to 1 more group practice or clinic, named with a free account. Dr. Chang-Stroman's employer is on file too: an urgent care center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Loi M. Chang-Stroman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang-Stroman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Hawaii Medical Group Hualalai Urgent Care | Available with a free account |
| +2 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Loi M. Chang-Stroman is one of 1,680 internists in Oregon
Internal medicine is Dr. Chang-Stroman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang-Stroman is licensed in Hawaii.
Specialties and state licenses
- Internal medicine, HawaiiPrimary
Internists near Dr. Chang-Stroman
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. Loi M. Chang-Stroman billed Medicare for 1,596 services in 2024
CMS data shows 1,596 Medicare services from Dr. Chang-Stroman across 13 procedure codes in 2024, for 744 Medicare patients. Medicare paid $93,393 for them. Every service was in an office.
Dr. Chang-Stroman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9382024: 9532%
- Other services
- 2023: 3252024: 21434%
- Drugs given in the office
- 2023: 1592024: 18013%
- Lab and pathology
- 2023: 1832024: 15018%
- Surgery
- 2023: 442024: 5116%
- Tests and treatments
- 2023: 322024: 4850%
Dr. Chang-Stroman compared with the Oregon median for internists, 2024
- Dr. Chang-Stroman
- Oregon median
- Medicare services
- 1,596vs 3005.3 times
- Medicare patients
- 744vs 1325.6 times
- Part D claims
- 970vs 2224.4 times
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Chang-Stroman'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. Chang-Stroman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang-Stroman and other internists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Loi M. Chang-Stroman treated 744 Medicare patients in 2024, average age 75
CMS counts 744 Medicare patients who saw Dr. Chang-Stroman in 2024. The largest group is 65 to 74, with 368 patients. 69% of them have high cholesterol, and 60% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang-Stroman's median patient age at 68, with 53% women.
Dr. Chang-Stroman's Medicare patients by age, 2024
Dr. Chang-Stroman's Medicare patients by sex, 2024
- Women40154%
- Men34346%
Chronic conditions among Dr. Chang-Stroman's Medicare patients, 2024
- High cholesterol69%
- High blood pressure60%
- Arthritis37%
- Ischemic heart disease20%
- Diabetes18%
- Chronic kidney disease16%
- Atrial fibrillation14%
- Cancer13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chang-Stroman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Loi M. Chang-Stroman wrote 1,183 Medicare Part D claims in 2024
In 2024, Dr. Chang-Stroman wrote 1,183 Medicare Part D claims for 698 patients. 87% of them were for generic drugs. CMS names the drug for 970 of them, across 23 drugs with 11 or more claims each, at $20,290 in total drug cost. In 2023, CMS named 735 claims across 19 drugs.
Dr. Chang-Stroman's Part D claims by kind of drug, 2024
- Generic1,026 claims87%
- Brand-name and other157 claims13%
Dr. Chang-Stroman'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. Chang-Stroman's Part D claims, 2024
- Opioids2%24 of 1,183 claims
- Antibiotics51%607 of 1,183 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: 7352024: 97032%
Drugs named by CMS: 23 in 2024, 19 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
Dr. Loi M. Chang-Stroman scored 69 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 69 out of 100 for Dr. Chang-Stroman for performance year 2024, reported as part of a group. Dr. Chang-Stroman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chang-Stroman's MIPS scores, performance year 2024
- 69of 100Final score
- 38of 100Quality
- 40of 100Improvement Activities
- 80of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Loi M. Chang-Stroman received $124 in industry payments from 2016 to 2025
CMS Open Payments shows 5 general payments to Dr. Chang-Stroman from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $62.
General payments to Dr. Chang-Stroman by program year, 2016 to 2025
Companies that paid Dr. Chang-Stroman 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. Loi M. Chang-Stroman graduated from Howard University College of Medicine
Dr. Chang-Stroman graduated from Howard University College of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Loi M. Chang-Stroman'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Loi M. Chang-Stroman
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. Loi M. Chang-Stroman's NPI number?
Dr. Loi M. Chang-Stroman's NPI number is 1780770529. It was assigned on October 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Loi M. Chang-Stroman?
Dr. Loi M. Chang-Stroman is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Loi M. Chang-Stroman practice?
Dr. Chang-Stroman practices at 100 SW Market St, Portland, OR 97201. Dr. Chang-Stroman's primary practice is West Hawaii Medical Group Hualalai Urgent Care in Portland, Oregon. Dmand AI also links Dr. Chang-Stroman to 1 group practice or clinic.
What is Dr. Loi M. Chang-Stroman's office phone number?
The practice phone on file for Dr. Chang-Stroman is (808) 329-6355.
What is Dr. Loi M. Chang-Stroman's medical license number?
Dr. Chang-Stroman holds Hawaii license 8269.
Which hospitals is Dr. Loi M. Chang-Stroman affiliated with?
Dr. Chang-Stroman is affiliated with Kona Community Hospital.
What medical group is Dr. Loi M. Chang-Stroman part of?
Dr. Chang-Stroman is linked to West Hawaii Medical Group Hualalai Urgent Care.
Does Dr. Loi M. Chang-Stroman accept Medicare?
Yes. CMS data shows Dr. Chang-Stroman billed Medicare for 1,596 services in 2024, and Dr. Chang-Stroman accepts Medicare assignment.
What is Dr. Loi M. Chang-Stroman's MIPS score?
Dr. Chang-Stroman's MIPS final score for performance year 2024 is 69 out of 100, reported as part of a group.
How many Medicare patients does Dr. Loi M. Chang-Stroman see?
CMS counts 744 Medicare patients who saw Dr. Chang-Stroman in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Loi M. Chang-Stroman bill to Medicare?
In 2024, Dr. Chang-Stroman's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and medical service (0241U).
Where did Dr. Loi M. Chang-Stroman go to medical school?
Dr. Chang-Stroman graduated from Howard University College of Medicine in 1987.
What drugs does Dr. Loi M. Chang-Stroman prescribe most?
In 2024 Medicare Part D data, Dr. Chang-Stroman's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Paxlovid and Sulfamethoxazole-Trimethoprim.
Has Dr. Loi M. Chang-Stroman received payments from drug or device companies?
CMS Open Payments shows $124 in general payments to Dr. Chang-Stroman from 4 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Loi M. Chang-Stroman been practicing?
Dr. Chang-Stroman graduated from medical school in 1987, 39 years ago.
Selling to internal medicine practices?
See internists in Oregon by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card