Madelyn Dan Do , PA
Physician Assistant • Portland, OR
9155 Sw Barnes Rd Ste 238
Portland, OR 972256629
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on September 15, 2010; this date does not establish years in practice.
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Published CMS data list 121 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 51798 — Ultrasound measurement of bladder capacity after voiding: 37 service units.
- 81003 — Automated urinalysis test: 28 service units.
- 99203 — New patient outpatient office visit: 22 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 47 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Oxycodone Hcl — 32 prescription fills, including refills.
- Doxycycline Monohydrate — 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 80% of clinicians listed under Physician Assistant in Portland, OR (2024, 269 clinicians with data). Median for this group: 183. Middle half: 68 to 683.
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: 340. Middle half: 96 to 1,131.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 250 in 2018 to 121 in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2022.
Practice Location & Contact Primary Location
9155 Sw Barnes Rd Ste 238
Portland, OR 972256629
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Portland, OR. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Providence Health And Services Oregon. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2010
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $4,839 in 2022
The total amount Medicare approved for these services in 2022. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022.
Paid by Medicare
About $3,195 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022.
30-day fills
47 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$410 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $232.62 across 4 records.
By nature of payment
- Travel and Lodging: $137.01 across 1 record.
- Food and Beverage: $95.61 across 3 records.
Reporting-company totals
- ABBVIE INC.: $232.62 across 4 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
16 years (graduated 2010)
CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2010
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Madelyn Do has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Madelyn Do as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Portland and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 80% of clinicians listed under Physician Assistant in Portland, OR (2024, 269 clinicians with data). Median for this group: 183. Middle half: 68 to 683.
Fewer Part D prescriptions than 85% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: 340. Middle half: 96 to 1,131.
Part D drug cost
A lower Part D drug cost than 75% of clinicians listed under Physician Assistant in Portland, OR (2024, 269 clinicians with data). Median for this group: $4,935. Middle half: $523 to $54,994.
A lower Part D drug cost than 80% of clinicians listed under Physician Assistant in Oregon (2024, 1,336 clinicians with data). Median for this group: $8,538. Middle half: $984 to $101,656.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Madelyn Do are from 2022.
464 active clinicians are listed under Physician Assistant with a practice address in Portland, OR (2,095 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Portland
24.1% of these 464 clinicians have the CMS telehealth indicator.
69.2% of these 464 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 52% from 250 in 2018 to 121 in 2022.
- 2018: 250
- 2019: 239
- 2020: 49
- 2021: 53
- 2022: 121
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Medicare-allowed amount
Medicare-allowed amount decreased 68% from $15,309 in 2018 to $4,839 in 2022.
- 2018: $15,309
- 2019: $13,340
- 2020: $1,444
- 2021: $1,036
- 2022: $4,839
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Paid by Medicare
Paid by Medicare decreased 73% from $11,902 in 2018 to $3,195 in 2022.
- 2018: $11,902
- 2019: $9,756
- 2020: $928
- 2021: $821
- 2022: $3,195
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 88% from 391 in 2020 to 47 in 2024.
- 2020: 391
- 2021: 357
- 2022: 339
- 2023: 14
- 2024: 47
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30-day fills
30-day fills decreased 92% from 564 in 2020 to 47 in 2024.
- 2020: 564
- 2021: 507
- 2022: 407
- 2023: 18
- 2024: 47
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Part D drug cost
Part D drug cost decreased 99% from $29,049 in 2020 to $410 in 2024.
- 2020: $29,049
- 2021: $35,692
- 2022: $13,247
- 2023: $194
- 2024: $410
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 94% from $4,202.07 in 2021 to $232.62 in 2025.
- 2021: $4,202.07
- 2022: $2,442.29
- 2024: $1,605.60
- 2025: $232.62
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $232.62.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Travel and Lodging
In-kind items and services
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NATRELLE SALINE-FILLED BREAST IMPLANTS | General | $137.01 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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NATRELLE SALINE-FILLED BREAST IMPLANTS | General | $49.86 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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NATRELLE SALINE-FILLED BREAST IMPLANTS | General | $32.05 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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NATRELLE SALINE-FILLED BREAST IMPLANTS | General | $13.70 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2021 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2022; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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51798
Ultrasound measurement of bladder capacity after voiding
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37 | 33 | $42.00 | $11.14 |
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81003
Automated urinalysis test
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28 | 26 | $10.00 | $2.23 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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22 | 22 | $345.00 | $97.26 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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19 | 18 | $279.00 | $79.53 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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15 | 15 | $174.00 | $47.59 |
Source: CMS Part B by Provider and Service, 2022; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 32 | 190 | $163.19 | 20 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 15 | 189 | $247.10 | 13 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-04-21NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20130521000674
OR
4284820283
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Providence Health And Services Oregon
5050 Ne Hoyt St, Portland, OR 972132984
Phone: 5032156405
Providence Health And Services Oregon
4805 Ne Glisan St, Portland, OR 972132933
Providence Health And Services Oregon
5050 Ne Hoyt St, Portland, OR 972132981
Phone: 5032156480
Providence Health And Services Oregon
9135 Sw Barnes Rd, Portland, OR 972256784
Phone: 5032166300
Providence Health And Services Oregon
9205 Sw Barnes Rd, Portland, OR 972256603
Secondary Practice Locations
5050 Ne Hoyt St Ste 514
Portland, OR 972132984
Phone: 5034882323
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Surgery - Surgical Oncology
Doctor of Medicine (M.D.)
Plastic Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 9155 SW BARNES RD STE 238, PORTLAND, OR 972256629 (Tel: 5032166407)
Registered at PO BOX 3158, PORTLAND, OR 972083158 (Tel: 5032156494)
Physician Assistant (license number reported to NPPES: OR PA162008)
Registered at 5050 NE HOYT ST STE 514, PORTLAND, OR 972132984 (Tel: 5034882323)
NPI status registered as active in NPPES database
Registered at 5050 NE HOYT ST, SUITE 514, PORTLAND, OR 972132991 (Tel: 5034882323)
Registered at 847 NE 19TH AVE, SUITE 300, PORTLAND, OR 972322684 (Tel: 5039632801)
Recorded as MADELYN DO, PA
Physician Assistant (license number reported to NPPES: OR PA162008)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Portland
- Katarina Mcclung, PA
- Victoria Oberzil, PA-C
- Jacob Geyen
- Lucy Nusrala, PA-C
- Jamianne Moore
- Megan Walraven, PA-C
Mailing Address
Po Box 3158
Portland, OR 972083158
Phone: 5032156494