Marissa Denise Sager
- Medicare patients, 2024
- 585
- Part D claims, 2024
- 2,152
- Hospital affiliations
- 4
- Industry payments
- $1,230
- Medical groups
- 2
- Practice address
- 1840 Amherst St, Winchester, VA 22601
- Practice phone
- Call (540) 536-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marissa Sager'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.
Marissa Denise Sager is a physician assistant in Winchester, Virginia
Marissa Sager practices at Winchester Medical Center in Winchester, Virginia, part of Valley Health.
Marissa Sager's NPI, 1649996927, was assigned on October 18, 2022. Marissa Sager holds Virginia license 0110009188.
- NPI
- 1649996927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395110282
- NPI enumeration date
- October 18, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (540) 536-8000
- 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)
Marissa Denise Sager practices at Winchester Medical Center in Winchester, Virginia
Marissa Sager's primary practice is Winchester Medical Center, at 1840 Amherst St, Winchester, VA 22601 in Winchester City. The practice phone is (540) 536-8000.
- Winchester Medical Center1840 Amherst St, Winchester, VA 22601 · Winchester CityPhone(540) 536-8000
Source: Dmand AI Affiliation Data
Marissa Denise Sager is affiliated with 6 sites of care and 2 medical groups
Marissa Sager's primary practice is Winchester Medical Center in Winchester, Virginia, part of Valley Health. Marissa Sager is also affiliated with Shenandoah Memorial Hospital. The medical group on file is Valley Health. Dmand AI also links Marissa Sager to 2 more hospitals, 2 group practices and clinics 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 Marissa Denise Sager's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Sager practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Winchester Medical Center | Available with a free account |
| +5 more sites and 1 medical group | 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 Valley Health and 6.2K+ hospitals, with verified contacts in the same login.
Marissa Denise Sager is one of 3,636 physician assistants in Virginia
Physician assistant is Marissa Sager's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marissa Sager is licensed in Virginia.
Specialties and state licenses
- Physician assistant, VirginiaPrimary
Physician assistants near Marissa Sager
Counts of 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
Marissa Denise Sager treated 585 Medicare patients in 2024, average age 76
CMS counts 585 Medicare patients who saw Marissa Sager in 2024. The largest group is 75 to 84, with 244 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.68, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marissa Sager's median patient age at 75, with 45% women.
Marissa Sager's Medicare patients by age, 2024
Marissa Sager's Medicare patients by sex, 2024
- Women25343%
- Men33257%
Chronic conditions among Marissa Sager's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease59%
- Arthritis57%
- Atrial fibrillation55%
- Heart failure53%
- Diabetes44%
- Chronic kidney disease42%
Share of Medicare patients with each condition. A patient can have several.
Marissa Sager's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women45%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marissa Denise Sager wrote 2,152 Medicare Part D claims in 2024
In 2024, Marissa Sager wrote 2,152 Medicare Part D claims for 475 patients. 83% of them were for generic drugs.
Marissa Sager's Part D claims by kind of drug, 2024
- Generic1,788 claims83%
- Brand-name364 claims17%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Marissa Denise Sager offers telehealth to Medicare patients
Marissa Sager accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Marissa Sager as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Marissa Denise Sager received $1,230 in industry payments in 2025
CMS Open Payments shows 17 general payments to Marissa Sager from 8 drug and device companies in 2025. Travel and lodging make up the largest share, 73% of the total. Abbott Laboratories paid the most, $949.
General payments to Marissa Sager by kind, 2025 to 2025
- Travel and lodging$89773%
- Food and beverage$33427%
Companies that paid Marissa Sager 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 Marissa Denise Sager'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) |
| 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 Marissa Denise Sager
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa Denise Sager's NPI number?
Marissa Denise Sager's NPI number is 1649996927. It was assigned on October 18, 2022, and it is active in the NPI Registry.
What does Marissa Denise Sager specialize in?
Marissa Denise Sager is a physician assistant in Winchester, Virginia. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marissa Denise Sager practice?
Marissa Sager practices at 1840 Amherst St, Winchester, VA 22601. Marissa Sager's primary practice is Winchester Medical Center in Winchester, Virginia, part of Valley Health. Dmand AI also links Marissa Sager to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Marissa Denise Sager's office phone number?
The practice phone on file for Marissa Sager is (540) 536-8000.
What is Marissa Denise Sager's medical license number?
Marissa Sager holds Virginia license 0110009188, one of 2 state licenses on file.
Which hospitals is Marissa Denise Sager affiliated with?
Marissa Sager practices at Winchester Medical Center in Winchester, Virginia. Marissa Sager is also affiliated with Shenandoah Memorial Hospital. Dmand AI links Marissa Sager to 2 more hospitals.
What medical group is Marissa Denise Sager part of?
Marissa Sager is linked to Valley Health. Dmand AI links Marissa Sager to 1 more medical group.
Does Marissa Denise Sager accept Medicare?
Yes. CMS lists Marissa Sager as accepting Medicare assignment.
Does Marissa Denise Sager offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Marissa Sager as offering telehealth services.
How many Medicare patients does Marissa Denise Sager see?
CMS counts 585 Medicare patients who saw Marissa Sager in 2024, with an average age of 76.
Has Marissa Denise Sager received payments from drug or device companies?
CMS Open Payments shows $1,230 in general payments to Marissa Sager from 8 companies from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Marissa Denise Sager been practicing?
Marissa Sager graduated from medical school in 2022, 4 years ago.
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