Dr. Mariles Viloria-Grageda, MD
- Medicare services, 2022
- 29
- Part D claims, 2024
- 13
- Hospital affiliations
- 1
- Industry payments
- $593
- Medical groups
- 3
- Practice address
- 3300 Gallows Rd, Falls Church, VA 22046
- Practice phone
- Call (703) 698-3659
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Inova Fairfax Hospital - Unit
Acute Care Hospital-Unit · Falls Church, Virginia
Find Dr. Viloria-Grageda's professional email, personal email and mobile number
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Dr. Mariles Viloria-Grageda is a psychiatrist in Falls Church, Virginia
Dr. Viloria-Grageda practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia.
Dr. Viloria-Grageda's NPI, 1255371738, was assigned on June 6, 2006. Dr. Viloria-Grageda holds Virginia license 0101265233.
- NPI
- 1255371738NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274516570
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 698-3659
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mariles Viloria-Grageda practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia
Dr. Viloria-Grageda's primary practice is Inova Fairfax Hospital - Unit, at 3300 Gallows Rd, Falls Church, VA 22046 in Falls Church City. The practice phone is (703) 698-3659.
- Inova Fairfax Hospital - Unit3300 Gallows Rd, Falls Church, VA 22046 · Falls Church CityPhone(703) 698-3659
Source: Dmand AI Affiliation Data
Dr. Mariles Viloria-Grageda is affiliated with 1 site of care and 3 medical groups
Dr. Viloria-Grageda's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Viloria-Grageda to 2 more medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mariles Viloria-Grageda's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Viloria-Grageda practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Inova Fairfax Hospital - Unit | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mariles Viloria-Grageda is one of 1,014 psychiatrists in Virginia
Psychiatry is Dr. Viloria-Grageda's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Viloria-Grageda's licenses on file in 3 states: Virginia, District of Columbia and Maryland.
Specialties and state licenses
- Psychiatry, VirginiaPrimary
- District of Columbia license
- Maryland license
Psychiatrists near Dr. Viloria-Grageda
Counts of psychiatrists 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
Dr. Mariles Viloria-Grageda billed Medicare for 29 services in 2022
CMS data shows 29 Medicare services from Dr. Viloria-Grageda across 1 procedure code in 2022, all of them office visits. Medicare paid $2,100 for them.
Dr. Viloria-Grageda's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1572022: 2982%
- Tests and treatments
- 2021: 132022: 0100%
Where Dr. Viloria-Grageda's Medicare services took place, 2022
- In an office1241%
- In a facility1759%
Dr. Viloria-Grageda compared with the Virginia median for psychiatrists, 2022
- Dr. Viloria-Grageda
- Virginia median
- Medicare services
- 29vs 15581% below
- Part D claims
- 29vs 15782% below
Medians across 1,072 psychiatrists in Virginia with Dmand AI profiles that report each measure.
Dr. Viloria-Grageda's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Viloria-Grageda and other psychiatrists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mariles Viloria-Grageda's patients have a median age of 33
Across all payers, Dmand AI patient panel data puts Dr. Viloria-Grageda's median patient age at 33, with 42% women.
Dr. Viloria-Grageda's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 33
Patient panel by sex, all payers
- Women42%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Mariles Viloria-Grageda wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Viloria-Grageda wrote 13 Medicare Part D claims. 92% of them were for generic drugs. They cover 2 drugs, with $1,701 in total drug cost. In 2021, CMS named 509 claims across 17 drugs.
Dr. Viloria-Grageda's Part D claims by kind of drug, 2024
- Generic12 claims92%
- Brand-name and other1 claims8%
Dr. Viloria-Grageda's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 5092022: 2994%
Drugs named by CMS: 2 in 2022, 17 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mariles Viloria-Grageda takes part in Medicare
Dr. Viloria-Grageda 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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Dr. Mariles Viloria-Grageda received $593 in industry payments from 2016 to 2018
CMS Open Payments shows 18 general payments to Dr. Viloria-Grageda from 7 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 61% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $149.
General payments to Dr. Viloria-Grageda by program year, 2016 to 2018
General payments to Dr. Viloria-Grageda by kind, 2016 to 2018
- Food and beverage$36061%
- Education$23339%
Companies that paid Dr. Viloria-Grageda the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mariles Viloria-Grageda'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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 Dr. Mariles Viloria-Grageda
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mariles Viloria-Grageda's NPI number?
Dr. Mariles Viloria-Grageda's NPI number is 1255371738. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mariles Viloria-Grageda?
Dr. Mariles Viloria-Grageda is a psychiatrist in Falls Church, Virginia. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mariles Viloria-Grageda practice?
Dr. Viloria-Grageda practices at 3300 Gallows Rd, Falls Church, VA 22046. Dr. Viloria-Grageda's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dmand AI also links Dr. Viloria-Grageda to 2 medical groups.
What is Dr. Mariles Viloria-Grageda's office phone number?
The practice phone on file for Dr. Viloria-Grageda is (703) 698-3659.
What is Dr. Mariles Viloria-Grageda's medical license number?
Dr. Viloria-Grageda holds Virginia license 0101265233, one of the licenses on file in 3 states.
Which states has Dr. Mariles Viloria-Grageda been licensed in?
Dmand AI has state licenses on file for Dr. Viloria-Grageda in Virginia, District of Columbia and Maryland.
What medical group is Dr. Mariles Viloria-Grageda part of?
Dr. Viloria-Grageda is linked to MedStar Medical Group. Dmand AI links Dr. Viloria-Grageda to 2 more medical groups.
Does Dr. Mariles Viloria-Grageda accept Medicare?
Yes. CMS data shows Dr. Viloria-Grageda billed Medicare for 29 services in 2022, and Dr. Viloria-Grageda accepts Medicare assignment.
What services does Dr. Mariles Viloria-Grageda bill to Medicare?
In 2022, Dr. Viloria-Grageda's most billed Medicare services were office visit, established patient (99214).
What drugs does Dr. Mariles Viloria-Grageda prescribe most?
In 2022 Medicare Part D data, Dr. Viloria-Grageda's most prescribed drugs by claims were Trazodone HCl and Aripiprazole.
Has Dr. Mariles Viloria-Grageda received payments from drug or device companies?
CMS Open Payments shows $593 in general payments to Dr. Viloria-Grageda from 7 companies from 2016 to 2018. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Mariles Viloria-Grageda been practicing?
Dr. Viloria-Grageda graduated from medical school in 1978, 48 years ago.
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