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DR. MARILES VILORIA-GRAGEDA M.D.
NPI 1255371738
Psychiatry & Neurology - Psychiatry in Washington, DC

Active since June 06, 2006PECOS EnrolledAccepts Medicare Assignment
81.28/100
CMS Quality Rating
1730 RHODE ISLAND AVE NW STE 502, WASHINGTON, DC 20036(202) 902-7324(848) 213-0063 Get Directions Write a Review

NPPES record last updated: November 5, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 5, 2024, Dec 21, 2021, Oct 20, 2020 (3 updates tracked since 2020).

About Dr. Mariles Viloria-grageda M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARILES VILORIA-GRAGEDA M.D. (NPI 1255371738) is an individual psychiatry provider in Washington, District Of Columbia, licensed in Virginia (0101265233) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Alexandria, and is a graduate of Other (1978).

NPPES Registry Identity

NPI1255371738
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MARILES VILORIA-GRAGEDACredential: M.D.
Location Address1730 RHODE ISLAND AVE NW STE 502Washington, DC 20036-3117
Mailing Address6910 Richmond Hwy Ste 110Alexandria, VA 22306-1850 · (703) 660-8100 · Fax (703) 768-0103
Phone(202) 902-7324
Fax(848) 213-0063
Sole ProprietorNo
Medical School CMSOtherGraduated 1978
Enumeration DateJune 6, 2006
Last NPPES UpdateNovember 5, 20243 updates tracked since enumeration
NPPES CertifiedNovember 5, 2024
✔ NPI 1255371738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in VA · 0101265233✔ Licensed in DC · MD600003129✔ Licensed in MD · D0057571
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1730 RHODE ISLAND AVE NW STE 502, Washington, DC 20036
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Secondary Practice Location 1

Location 16910 Richmond Hwy Ste 110Alexandria, VA 22306-1850 · Phone (703) 660-8100 · Fax (703) 768-0103

Other Identifiers 2

Medicaid808400900MD
Other260046906MD · R/r Medicare Provider #

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mariles Viloria-grageda M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3274516570
PECOS Enrollment IDI20190128003065
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Mariles Viloria-grageda reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medstar Medical Group II LLC
0.2 mi
Internal Medicine
1145 19TH ST NW, SUITE 311
Washington, DC 20036
  • Reassigned Medicare billing, Maryland enrollment
  • 2,602 clinicians in this Medicare group
NPI 1376887844 (202) 429-2401
Inova Health Care Services
11 mi
Internal Medicine
3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Also billed through NPI 1588717755 (Virginia)
  • 282 clinicians in this Medicare group
NPI 1952320061 (703) 321-2627
Sinai Hospital Of Baltimore, Inc.
34 mi
General Acute Care Hospital
2000 W BALTIMORE ST
Baltimore, MD 21223
  • Reassigned Medicare billing, Maryland enrollment
  • 664 clinicians in this Medicare group
NPI 1528716115 (410) 362-3000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.77
Promoting Interoperability100
Improvement Activities40
Cost66.84

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RAFT HEALTH DISTRICT OF COLUMBIA PLLC
Counselor (Mental Health)
1730 RHODE ISLAND AVE NW STE 502
WASHINGTON, DC 20036
District of Columbia (202) 441-4228
JOY E MARTINI LICSW
Social Worker (Clinical)
1730 RHODE ISLAND AVE NW STE 502
WASHINGTON, DC 20036
District of Columbia (301) 674-4917
JANICE GARCIA GUZMAN MD, MPH
Psychiatry & Neurology (Psychiatry)
1730 RHODE ISLAND AVE NW STE 502
WASHINGTON, DC 20036
District of Columbia (202) 902-7324
SHALOM HEALTHCARE LLC
Nurse Practitioner (Psychiatric/Mental Health)
1730 RHODE ISLAND AVE NW STE 502
WASHINGTON, DC 20036
District of Columbia (202) 460-7577

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mariles Viloria-grageda's NPI number?

The NPI number for Mariles Viloria-grageda is 1255371738. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Mariles Viloria-grageda located?

Mariles Viloria-grageda practices at 1730 Rhode Island Ave NW Ste 502, Washington, DC 20036. The listed phone number is (202) 902-7324.

What is Mariles Viloria-grageda's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mariles Viloria-grageda enrolled in Medicare?

Yes. Mariles Viloria-grageda is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mariles Viloria-grageda's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mariles Viloria-grageda reassigns Medicare benefits to 3 organizations: Medstar Medical Group II LLC (Washington, DC), Inova Health Care Services (Falls Church, VA) and Sinai Hospital Of Baltimore, Inc. (Baltimore, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mariles Viloria-grageda's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mariles Viloria-grageda accept?

Health plans from Oscar Health list Mariles Viloria-grageda as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mariles Viloria-grageda was last updated on November 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.