Mandy Melissa Williams, PA-C
- Medicare patients, 2024
- 86
- Part D claims, 2024
- 167
- Hospital affiliations
- 1
- Industry payments
- $25
- Medical group
- 1
- Practice address
- 265 N Broadway, Portland, OR 97227-1800
- Practice phone
- Call (503) 280-1223
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Compass Oncology
Multi-specialty group site · Portland, Oregon
Find Mandy Williams' 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.
Mandy Melissa Williams is a surgical physician assistant in Portland, Oregon
Mandy Williams practices at Compass Oncology in Portland, Oregon.
Mandy Williams' NPI, 1841472065, was assigned on November 29, 2007. Mandy Williams holds Oregon license PA01310.
- NPI
- 1841472065NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901996321
- NPI enumeration date
- November 29, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 280-1223
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mandy Melissa Williams practices at Compass Oncology in Portland, Oregon
Mandy Williams' primary practice is Compass Oncology, at 265 N Broadway, Portland, OR 97227-1800. The practice phone is (503) 280-1223.
- Compass Oncology265 N Broadway, Portland, OR 97227-1800Phone(503) 280-1223
Source: Dmand AI Affiliation Data
Mandy Melissa Williams is affiliated with 2 sites of care and 1 medical group
Mandy Williams' primary practice is Compass Oncology in Portland, Oregon. Mandy Williams is also affiliated with Providence Portland Medical Center. The medical group on file is Compass Oncology.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mandy Melissa Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mandy Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Compass Oncology | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mandy Melissa Williams is one of 317 surgical physician assistants in Oregon
Surgical is Mandy Williams' primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Mandy Williams is licensed in Oregon.
Specialties and state licenses
- Surgical physician assistant, OregonPrimary
Surgical physician assistants near Mandy Williams
Counts of surgical physician assistants 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
Mandy Melissa Williams treated 86 Medicare patients in 2024, average age 72
CMS counts 86 Medicare patients who saw Mandy Williams in 2024. The largest group is 65 to 74, with 50 patients. 71% of them have high blood pressure, and 60% have cancer. 19% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mandy Williams' median patient age at 65, with 99% women.
Mandy Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Mandy Williams' Medicare patients, 2024
- High blood pressure71%
- Cancer60%
- High cholesterol60%
- Arthritis37%
- Diabetes27%
- Chronic kidney disease23%
- Anxiety20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Mandy Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women99%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mandy Melissa Williams wrote 167 Medicare Part D claims in 2024
In 2024, Mandy Williams wrote 167 Medicare Part D claims for 69 patients. 93% of them were for generic drugs.
Mandy Williams' Part D claims by kind of drug, 2024
- Generic156 claims93%
- Brand-name11 claims7%
Drug classes CMS tracks in Mandy Williams' Part D claims, 2024
- Opioids18%30 of 167 claims
- Antibiotics7%12 of 167 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mandy Melissa Williams takes part in Medicare
Mandy Williams 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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Mandy Melissa Williams received $25 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mandy Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $25.
Companies that paid Mandy Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mandy Melissa Williams'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 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 (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) |
| 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 Mandy Melissa Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mandy Melissa Williams' NPI number?
Mandy Melissa Williams' NPI number is 1841472065. It was assigned on November 29, 2007, and it is active in the NPI Registry.
What does Mandy Melissa Williams specialize in?
Mandy Melissa Williams is a surgical physician assistant in Portland, Oregon. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Mandy Melissa Williams practice?
Mandy Williams practices at 265 N Broadway, Portland, OR 97227-1800. Mandy Williams' primary practice is Compass Oncology in Portland, Oregon.
What is Mandy Melissa Williams' office phone number?
The practice phone on file for Mandy Williams is (503) 280-1223.
What is Mandy Melissa Williams' medical license number?
Mandy Williams holds Oregon license PA01310.
Which hospitals is Mandy Melissa Williams affiliated with?
Mandy Williams is affiliated with Providence Portland Medical Center.
What medical group is Mandy Melissa Williams part of?
Mandy Williams is linked to Compass Oncology.
Does Mandy Melissa Williams accept Medicare?
Yes. CMS lists Mandy Williams as accepting Medicare assignment.
How many Medicare patients does Mandy Melissa Williams see?
CMS counts 86 Medicare patients who saw Mandy Williams in 2024, with an average age of 72.
Has Mandy Melissa Williams received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Mandy Williams from 1 company from 2025 to 2025. The largest total came from Pfizer Inc.
How long has Mandy Melissa Williams been practicing?
Mandy Williams graduated from medical school in 2007, 19 years ago.
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