2026 NPPES data Specialist NPI 1699886564 M.D.
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AGATA MARRIOTT, M.D.

Specialist in DEL MAR, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
353
Medicare Part D claims · 157 beneficiaries · Specialist avg: 1K
MIPS score
86.8976/100
▲ 4 pts above national avg 83.1 · [object Object]

What the federal data shows

AGATA MARRIOTT, M.D. reported a CMS MIPS final score of 86.8976/100 — above the 83.1 national average — and filed 353 Medicare Part D claims in 2023.

86.8976/100
MIPS score · +4 vs avg
353
Part D claims, 2023

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.

AGATA MARRIOTT, 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

87 Top 48% higher than 52% 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. 90–100: 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

What does the federal data show about AGATA MARRIOTT, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 08/31/2006

NPI 1699886564

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

353 76% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

86.8976/100 3.7976000000000028% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Specialist compares to other specialties among California providers

California providers

Specialist share within California

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within California

Medicare quality performance — MIPS

AGATA MARRIOTT, M.D.'s 2023 MIPS final score plotted against the Specialist national average

High performer (top quartile)
MIPS Final Score
86.8976/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 86.8976/100 vs national avg 83.1

0%100%National avg83%86.9%
MIPS final score (Specialist) — 86.8976/100 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).

AGATA MARRIOTT, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 1349 CAMINO DEL MAR, DEL MAR, CA, 92014, with a listed phone of (858) 755-0707. NPI 1699886564 was issued on 08/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARRIOTT 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 353 prescription claims written by this provider, covering 157 Medicare beneficiaries and totaling roughly $15K 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 86.8976/100 for the 2023 performance year (Quality 78.3593), compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

1349 CAMINO DEL MAR
DEL MAR, CA 92014

Provider Details

NPI 1699886564
Specialty Specialist
Credentials M.D.
Gender Female
NPI Issued 08/31/2006

CMS Quality Score (MIPS)

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

86.8976
Final Score
Avg: 83.1
78.3593
Quality
96
Promoting Interoperability

Reporting: Individual

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to AGATA MARRIOTT, M.D.. To verify AGATA MARRIOTT, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

353
Total Claims
$15K
Total Drug Cost
157
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
369
Total Day Supply
9,434
Generic Drug Cost
$14K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
76.6 years
Avg HCC Risk Score
0.95
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What AGATA MARRIOTT, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Hydrocortisone
64
Mupirocin
49
Betamethasone Dipropionate
39
Fluocinonide
31
Ketoconazole
31
Triamcinolone Acetonide
26
Clindamycin Phosphate
23
Valacyclovir
Valacyclovir Hcl
17
Metronidazole
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Specialist Overview

How AGATA MARRIOTT, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

AGATA MARRIOTT, M.D.'s 353 claims are below the specialty average of 1,474.

Nearby Specialist Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as MARRIOTT.

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is AGATA MARRIOTT, M.D.'s specialty?
AGATA MARRIOTT, M.D. specializes in Specialist and practices in DEL MAR, California. Credentials: M.D..
How much does AGATA MARRIOTT, M.D. prescribe under Medicare Part D?
In 2023, AGATA MARRIOTT, M.D. wrote 353 Medicare Part D claims totaling $15K in drug costs for 157 beneficiaries.
What is AGATA MARRIOTT, M.D.'s Medicare quality score?
AGATA MARRIOTT, M.D. has a CMS MIPS Final Score of 86.8976/100 (Quality: 78.3593). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is AGATA MARRIOTT, M.D. located?
AGATA MARRIOTT, M.D. is located at 1349 CAMINO DEL MAR, DEL MAR, CA, 92014. Phone: (858) 755-0707.
What is AGATA MARRIOTT, M.D.'s NPI number?
AGATA MARRIOTT, M.D.'s National Provider Identifier (NPI) is 1699886564, issued on 08/31/2006.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does AGATA MARRIOTT, M.D. prescribe most often?
Based on 2023 Medicare Part D data, AGATA MARRIOTT, M.D.'s most frequently prescribed drugs include Hydrocortisone, Mupirocin, Betamethasone Dipropionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AGATA MARRIOTT, M.D. accept Medicare?
AGATA MARRIOTT, M.D. appears in CMS Medicare data with 353 Part D claims and 157 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AGATA MARRIOTT, M.D.'s credentials?
AGATA MARRIOTT, M.D.'s NPI is 1699886564 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