2026 NPPES data Psychiatry Physician NPI 1255371738 M.D.
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Mariles Viloria-Grageda, M.D.

Psychiatry Physician in Washington, District of Columbia. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 53,104 in Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
18
Medicare Part D claims · Psychiatry Physician avg: 1K
MIPS score
81.3/100
▼ 2 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Mariles Viloria-Grageda, M.D. reported a CMS MIPS final score of 81.3/100 - below the 83.1 national average - and filed 18 Medicare Part D claims in 2023.

81.3/100
MIPS score · -2 vs avg
18
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Mariles Viloria-Grageda, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

81 36th percentile higher than 36% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Mariles Viloria-Grageda, M.D. sits

This provider among psychiatry physician peers

Across the 4,659 psychiatry physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mariles Viloria-Grageda, M.D. writes more Part D claims than 4% of them and scores higher on MIPS quality than 35% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Mariles Viloria-Grageda, M.D.-Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 35
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one psychiatry physician peer from a representative sample of 60; the gold marker is Mariles Viloria-Grageda, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Mariles Viloria-Grageda, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Mariles Viloria-Grageda, M.D.?

Near national average

NPI registry status

Active

Issued 06/06/2006

NPI 1255371738

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

18 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

MIPS final score

81.3/100 1.8 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in District of Columbia

How Psychiatry Physician compares to other specialties among District of Columbia providers

District of Columbia providers

Largest specialties in District of Columbia (% of in-state providers)

Home Health Aide - 20.8%Home Health Aide20.8%Personal Care Attendant - 11.5%Personal Care Attendant11.5%Case Manager/Care Coordinator - 7%Case Manager/Care Coordinator7%Student in an Organized Health Care Education/Training Program - 6.4%Student in an Organized Health Care Education/Training Program6.4%Clinical Social Worker - 4%Clinical Social Worker4%Internal Medicine Physician - 2.1%Internal Medicine Physician2.1%Psychiatry Physician - 0.9%Psychiatry Physician0.9%
Largest specialties in District of Columbia (% of in-state providers)

Medicare quality performance, MIPS

Mariles Viloria-Grageda, M.D.'s 2023 MIPS final score plotted against the Psychiatry Physician national average

Near national average
MIPS Final Score
81.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatry Physician) - 81.3/100 vs national avg 83.1

0%100%National avg83%81.3%
MIPS final score (Psychiatry Physician) - 81.3/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Mariles Viloria-Grageda, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 1730 RHODE ISLAND AVE NW STE 502, Washington, DC, 20036, with a listed phone of (202) 902-7324. NPI 1255371738 was issued on 06/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Viloria-Grageda most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 18 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $193 in drug spend. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.3/100 for the 2023 performance year (Quality 70.8, Cost 66.8), compared with the national average of 83.1.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1730 RHODE ISLAND AVE NW STE 502
Washington, DC 20036

Provider Details

NPI 1255371738
Specialty Psychiatry Physician
Credentials M.D.
Gender Female
NPI Issued 06/06/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

81.283
Final Score
Avg: 83.1
70.77
Quality
66.84
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Mariles Viloria-Grageda, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Inova Health Care Services
Fairfax, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

18
Total Claims
$193
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
22
Total Day Supply
663
Brand Drug Cost
$0
Generic Drug Cost
$193

Patient Demographics

Average Patient Age
61.9 years
Avg HCC Risk Score
1.35

Psychiatry Physician Overview

How Mariles Viloria-Grageda, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

Mariles Viloria-Grageda, M.D.'s 18 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in District of Columbia

Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Viloria-Grageda.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the District of Columbia medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Psychiatry Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Mariles Viloria-Grageda, M.D.'s specialty?
Mariles Viloria-Grageda, M.D. specializes in Psychiatry Physician and practices in Washington, District of Columbia. Credentials: M.D..
How much does Mariles Viloria-Grageda, M.D. prescribe under Medicare Part D?
In 2023, Mariles Viloria-Grageda, M.D. wrote 18 Medicare Part D claims totaling $193 in drug costs for N/A beneficiaries.
What is Mariles Viloria-Grageda, M.D.'s Medicare quality score?
Mariles Viloria-Grageda, M.D. has a CMS MIPS Final Score of 81.3/100 (Quality: 70.8, Cost: 66.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mariles Viloria-Grageda, M.D. located?
Mariles Viloria-Grageda, M.D. is located at 1730 RHODE ISLAND AVE NW STE 502, Washington, DC, 20036. Phone: (202) 902-7324.
What is Mariles Viloria-Grageda, M.D.'s NPI number?
Mariles Viloria-Grageda, M.D.'s National Provider Identifier (NPI) is 1255371738, issued on 06/06/2006.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
Does Mariles Viloria-Grageda, M.D. accept Medicare?
Mariles Viloria-Grageda, M.D. appears in CMS Medicare data with 18 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariles Viloria-Grageda, M.D.'s credentials?
Mariles Viloria-Grageda, M.D.'s NPI is 1255371738 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.