Margaret Willis, NP

  • Gaithersburg, MD
  • Obstetrics and gynecology nurse practitioner
NPI1578769568PAC ID6507225570
Medicare patients, 2024
63
Part D claims, 2024
147
Hospital affiliations
1
Industry payments
$19
Medical group
1
Practice address
203 Perry Pkwy, Gaithersburg, MD 20877
Practice phone
Call (571) 366-8850
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Privia Medical Group

Gaithersburg, Maryland

See all 4 affiliations

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Margaret Willis is an obstetrics and gynecology nurse practitioner in Gaithersburg, Maryland

Margaret Willis practices at Privia Medical Group in Gaithersburg, Maryland.

Margaret Willis' NPI, 1578769568, was assigned on June 26, 2007. Margaret Willis holds Virginia license 0001112082.

NPI and contact details
Medicare PAC ID
6507225570
NPI enumeration date
June 26, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(571) 366-8850
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
53
Medical school graduation
1999

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Margaret Willis practices at Privia Medical Group in Gaithersburg, Maryland

Margaret Willis' primary practice is Privia Medical Group, at 203 Perry Pkwy, Gaithersburg, MD 20877 in Montgomery County. The practice phone is (571) 366-8850.

  • Privia Medical Group
    203 Perry Pkwy, Gaithersburg, MD 20877 · Montgomery CountyPhone(571) 366-8850

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Margaret Willis is affiliated with 3 sites of care and 1 medical group

Margaret Willis' primary practice is Privia Medical Group in Gaithersburg, Maryland. Margaret Willis is also affiliated with Sentara Martha Jefferson Hospital. The medical group on file is Privia Medical Group. Dmand AI also links Margaret Willis to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Margaret Willis

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Margaret Willis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Margaret Willis practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Privia Medical GroupAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Margaret Willis is one of 46 obstetrics and gynecology nurse practitioners in Maryland

Obstetrics and gynecology is Margaret Willis' primary specialty in the NPI Registry, under taxonomy code 363LX0001X. Margaret Willis is licensed in Virginia.

Specialties and state licenses

  • Obstetrics and gynecology nurse practitioner, VirginiaPrimaryLicense 0001112082 · taxonomy 363LX0001X

Obstetrics and gynecology nurse practitioners near Margaret Willis

Counts of obstetrics and gynecology nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.

46obstetrics and gynecology nurse practitioners in Maryland
2obstetrics and gynecology nurse practitioners in Gaithersburg

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Margaret Willis treated 63 Medicare patients in 2024, average age 72

CMS counts 63 Medicare patients who saw Margaret Willis in 2024. The largest group is 65 to 74, with 42 patients. 62% of them have high cholesterol, and 54% have high blood pressure. Their average risk score is 0.68, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Margaret Willis' median patient age at 50, with 100% women.

Medicare patients, 202463
Average age72
Average risk score0.68

Margaret Willis' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Margaret Willis' Medicare patients, 2024

  1. High cholesterol62%
  2. High blood pressure54%
  3. Arthritis41%
  4. Osteoporosis29%
  5. Diabetes24%
  6. Mood disorders19%
  7. Anxiety17%

Share of Medicare patients with each condition. A patient can have several.

Margaret Willis' 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

  • Women100%
  • Men0%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Margaret Willis wrote 147 Medicare Part D claims in 2024

In 2024, Margaret Willis wrote 147 Medicare Part D claims for 46 patients. 93% of them were for generic drugs.

Part D claims, 2024147
Part D patients46

Margaret Willis' Part D claims by kind of drug, 2024

  • Generic137 claims93%
  • Brand-name and other10 claims7%

Drug classes CMS tracks in Margaret Willis' Part D claims, 2024

  • Antibiotics10%15 of 147 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 Margaret Willis takes part in Medicare

Margaret Willis 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)

For MedTech and pharma teams

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Margaret Willis received $19 in industry payments in 2025

CMS Open Payments shows 1 general payment to Margaret Willis from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Mayne Pharma Inc. paid the most, $19.

Companies that paid Margaret Willis the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Margaret Willis

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Margaret Willis's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Margaret Willis

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Margaret Willis' NPI number?

Margaret Willis' NPI number is 1578769568. It was assigned on June 26, 2007, and it is active in the NPI Registry.

What does Margaret Willis specialize in?

Margaret Willis is an obstetrics and gynecology nurse practitioner in Gaithersburg, Maryland. The primary specialty in the NPI Registry is Obstetrics & Gynecology Nurse Practitioner (taxonomy code 363LX0001X).

Where does Margaret Willis practice?

Margaret Willis practices at 203 Perry Pkwy, Gaithersburg, MD 20877. Margaret Willis' primary practice is Privia Medical Group in Gaithersburg, Maryland. Dmand AI also links Margaret Willis to 1 group practice or clinic.

What is Margaret Willis' office phone number?

The practice phone on file for Margaret Willis is (571) 366-8850.

What is Margaret Willis' medical license number?

Margaret Willis holds Virginia license 0001112082.

Which hospitals is Margaret Willis affiliated with?

Margaret Willis is affiliated with Sentara Martha Jefferson Hospital.

What medical group is Margaret Willis part of?

Margaret Willis is linked to Privia Medical Group.

Does Margaret Willis accept Medicare?

Yes. CMS lists Margaret Willis as accepting Medicare assignment.

How many Medicare patients does Margaret Willis see?

CMS counts 63 Medicare patients who saw Margaret Willis in 2024, with an average age of 72.

Has Margaret Willis received payments from drug or device companies?

CMS Open Payments shows $19 in general payments to Margaret Willis from 1 company from 2025 to 2025. The largest total came from Mayne Pharma Inc.

How long has Margaret Willis been practicing?

Margaret Willis graduated from medical school in 1999, 27 years ago.

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