2026 NPPES data Naturopath NPI 1225255391 ND
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KOREN BARRETT, ND

Naturopath in COSTA MESA, 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
367
Medicare Part D claims · 77 beneficiaries · Naturopath avg: 120
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KOREN BARRETT, ND filed 367 Medicare Part D claims in 2023 as a Naturopath in COSTA MESA, California, prescribing 76% generic.

367
Part D claims, 2023
76%
generic prescribing

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.

KOREN BARRETT, ND's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

367 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KOREN BARRETT, ND?

Quality data not reported

NPI registry status

Active

Issued 04/19/2007

NPI 1225255391

Primary specialty

Naturopath

Mid-sized

6,661 US NPIs in this specialty

Medicare Part D claims

367 206% vs specialty avg

2023 prescription claims

Specialty avg: 120

Specialty distribution in California

How Naturopath compares to other specialties among California providers

California providers

Naturopath share within California

1. Naturopath42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Naturopath share within California

Specialty board-certification context

Estimated specialty board-certified rate — Naturopath (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Naturopath ABMS/AOA estimate

Est. board-certified rate (Naturopath) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Naturopath) — ABMS / AOA estimate

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).

KOREN BARRETT, ND appears in the CMS NPPES registry as a Naturopath provider holding ND credentials at 1831 ORANGE AVE, COSTA MESA, CA, 92627, with a listed phone of (949) 642-4324. NPI 1225255391 was issued on 04/19/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARRETT 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 367 prescription claims written by this provider, covering 77 Medicare beneficiaries and totaling roughly $34K in drug spend, split 24% brand-name and 76% generic by claim count. 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.

Naturopath is a mid-sized specialty nationwide, with 6,661 enrolled providers across 53 states and an average of 120 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

1831 ORANGE AVE
COSTA MESA, CA 92627

Provider Details

NPI 1225255391
Specialty Naturopath
Credentials ND
Gender Female
NPI Issued 04/19/2007

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 KOREN BARRETT, ND. To verify KOREN BARRETT, ND'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.

Brand vs generic prescribing mix · Typical

KOREN BARRETT, ND — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 367 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

367
Total Claims
$34K
Total Drug Cost
77
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
786
Total Day Supply
22,588
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$20K
Generic Drug Cost
$11K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
0.64

Top Prescribed Drugs (Medicare Part D)

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

What KOREN BARRETT, ND 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
Levothyroxine Sodium
37
Estradiol (Twice Weekly)
Estradiol
27
Estradiol
19
Liothyronine Sodium
16
Rosuvastatin Calcium
16
Losartan Potassium
15
Synthroid
Levothyroxine Sodium
14
Estring
Estradiol
12
Armour Thyroid
"Thyroid
N/A
Np Thyroid
"Thyroid
N/A

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

Naturopath Overview

How KOREN BARRETT, ND fits within the Naturopath landscape nationally.

6,661
Naturopath Providers in US
53
States with Naturopath
120
Avg Claims per Provider

KOREN BARRETT, ND's 367 claims are above the specialty average of 120.

Nearby Naturopath Providers in California

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

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

Frequently Asked Questions

What is KOREN BARRETT, ND's specialty?
KOREN BARRETT, ND specializes in Naturopath and practices in COSTA MESA, California. Credentials: ND.
How much does KOREN BARRETT, ND prescribe under Medicare Part D?
In 2023, KOREN BARRETT, ND wrote 367 Medicare Part D claims totaling $34K in drug costs for 77 beneficiaries.
Where is KOREN BARRETT, ND located?
KOREN BARRETT, ND is located at 1831 ORANGE AVE, COSTA MESA, CA, 92627. Phone: (949) 642-4324.
What is KOREN BARRETT, ND's NPI number?
KOREN BARRETT, ND's National Provider Identifier (NPI) is 1225255391, issued on 04/19/2007.
Does KOREN BARRETT, ND prescribe more brand-name or generic drugs?
KOREN BARRETT, ND's prescribing is 24% brand-name and 76% generic drugs by claim count, with $20K in brand drug costs.
How many Naturopath providers are there in the US?
There are 6,661 Naturopath providers across 53 states in the US. The average Naturopath provider writes 120 Medicare Part D claims per year.
What drugs does KOREN BARRETT, ND prescribe most often?
Based on 2023 Medicare Part D data, KOREN BARRETT, ND's most frequently prescribed drugs include Levothyroxine Sodium, Estradiol (Twice Weekly), Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KOREN BARRETT, ND accept Medicare?
KOREN BARRETT, ND appears in CMS Medicare data with 367 Part D claims and 77 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KOREN BARRETT, ND's credentials?
KOREN BARRETT, ND's NPI is 1225255391 with credentials ND. 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.
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