Jillian Marianos, FNP
- Medicare patients, 2024
- 267
- Part D claims, 2024
- 2,072
- MIPS score, 2024
- 80
- Hospital affiliations
- 1
- Industry payments
- $108
- Practice address
- 110 Irving Street NW, Washington, DC 20010
- Practice phone
- Call (202) 877-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Jillian Marianos' professional email, personal email and mobile number
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Jillian Marianos is a family nurse practitioner in Washington, District of Columbia
Jillian Marianos practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Jillian Marianos' NPI, 1275266876, was assigned on July 1, 2022. Jillian Marianos graduated from George Washington University School of Medicine in 2022. Jillian Marianos holds Virginia license 0024184708.
- NPI
- 1275266876NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496139685
- NPI enumeration date
- July 1, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 877-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jillian Marianos practices at MedStar Washington Hospital Center in Washington, District of Columbia
Jillian Marianos' primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.
- MedStar Washington Hospital Center110 Irving Street NW, Washington, DC 20010 · The District CountyPhone(202) 877-7000
Source: Dmand AI Affiliation Data
Jillian Marianos is affiliated with 2 sites of care and 2 medical groups
Jillian Marianos' primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. The medical group on file is MedStar Medical Group. Dmand AI also links Jillian Marianos to 1 more group practice or clinic 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 Jillian Marianos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jillian Marianos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Washington Hospital Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Jillian Marianos is one of 407 family nurse practitioners in District of Columbia
Family is Jillian Marianos' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Jillian Marianos is licensed in Virginia.
Specialties and state licenses
- Family nurse practitioner, VirginiaPrimary
Family nurse practitioners near Jillian Marianos
Counts of family nurse practitioners 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
Jillian Marianos treated 267 Medicare patients in 2024, average age 78
CMS counts 267 Medicare patients who saw Jillian Marianos in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Jillian Marianos' median patient age at 71, with 35% women.
Jillian Marianos' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Jillian Marianos' Medicare patients by sex, 2024
- Women15056%
- Men11744%
Chronic conditions among Jillian Marianos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease64%
- Arthritis51%
- Atrial fibrillation39%
- Chronic kidney disease35%
- Heart failure34%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
Jillian Marianos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women35%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jillian Marianos wrote 2,072 Medicare Part D claims in 2024
In 2024, Jillian Marianos wrote 2,072 Medicare Part D claims for 614 patients. 81% of them were for generic drugs.
Jillian Marianos' Part D claims by kind of drug, 2024
- Generic1,687 claims81%
- Brand-name385 claims19%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Jillian Marianos scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Jillian Marianos for performance year 2024, reported as part of a group. Jillian Marianos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Jillian Marianos' MIPS scores, performance year 2024
- 80of 100Final score
- 74.4of 100Quality
- 87of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Jillian Marianos received $108 in industry payments in 2025
CMS Open Payments shows 4 general payments to Jillian Marianos from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $53.
Companies that paid Jillian Marianos the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Jillian Marianos graduated from George Washington University School of Medicine
Jillian Marianos graduated from George Washington University School of Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Jillian Marianos'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Jillian Marianos
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jillian Marianos' NPI number?
Jillian Marianos' NPI number is 1275266876. It was assigned on July 1, 2022, and it is active in the NPI Registry.
What does Jillian Marianos specialize in?
Jillian Marianos is a family nurse practitioner in Washington, District of Columbia. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Jillian Marianos practice?
Jillian Marianos practices at 110 Irving Street NW, Washington, DC 20010. Jillian Marianos' primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health. Dmand AI also links Jillian Marianos to 1 group practice or clinic and 1 medical group.
What is Jillian Marianos' office phone number?
The practice phone on file for Jillian Marianos is (202) 877-7000.
What is Jillian Marianos' medical license number?
Jillian Marianos holds Virginia license 0024184708.
Which hospitals is Jillian Marianos affiliated with?
Jillian Marianos practices at MedStar Washington Hospital Center in Washington, District of Columbia.
What medical group is Jillian Marianos part of?
Jillian Marianos is linked to MedStar Medical Group. Dmand AI links Jillian Marianos to 1 more medical group.
Does Jillian Marianos accept Medicare?
Yes. CMS lists Jillian Marianos as accepting Medicare assignment.
What is Jillian Marianos' MIPS score?
Jillian Marianos' MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
How many Medicare patients does Jillian Marianos see?
CMS counts 267 Medicare patients who saw Jillian Marianos in 2024, with an average age of 78.
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Where did Jillian Marianos go to medical school?
Jillian Marianos graduated from George Washington University School of Medicine in 2022.
Has Jillian Marianos received payments from drug or device companies?
CMS Open Payments shows $108 in general payments to Jillian Marianos from 3 companies from 2025 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Jillian Marianos been practicing?
Jillian Marianos graduated from medical school in 2022, 4 years ago.
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