2026 NPPES data Dentist NPI 1295051563
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CORY ERNST

Dentist in PORTLAND, Maine. 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
26
Medicare Part D claims · 22 beneficiaries · Dentist avg: 87
What the federal data reveals: CORY ERNST is a Dentist ([object Object]) practicing in PORTLAND, Maine with a Medicare Part D prescribing footprint of 26 claims across 22 beneficiaries .

What the federal data shows

CORY ERNST filed 26 Medicare Part D claims in 2023 as a Dentist in PORTLAND, Maine.

26
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.

CORY ERNST at a glance

Quality data not reported

NPI registry status

Active

Issued 04/12/2010

NPI 1295051563

Primary specialty

Dentist

High-volume

93,789 US NPIs in this specialty

Medicare Part D claims

26 70% vs specialty avg

2023 prescription claims

Specialty avg: 87

Specialty distribution in Maine

How Dentist compares to other specialties among Maine providers

Maine providers

Dentist share within Maine

1. Dentist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dentist share within Maine

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Dentist) — 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).

CORY ERNST is a Dentist provider practicing in PORTLAND, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1295051563. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CORY ERNST appears in the CMS NPPES registry as a Dentist provider at 1250 CONGRESS ST, PORTLAND, ME, 04102, with a listed phone of (207) 775-1401. NPI 1295051563 was issued on 04/12/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ERNST 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 26 prescription claims written by this provider, covering 22 Medicare beneficiaries and totaling roughly $205 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.

Dentist is a high-volume specialty nationwide, with 93,789 enrolled providers across 56 states and an average of 87 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

1250 CONGRESS ST
PORTLAND, ME 04102

Provider Details

NPI 1295051563
Specialty Dentist
Gender Male
NPI Issued 04/12/2010

Medicare Part D Prescribing Data

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

26
Total Claims
$205
Total Drug Cost
22
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
26
Total Day Supply
414
Brand Drug Cost
$0
Generic Drug Cost
$205

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
0.90

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Chlorhexidine Gluconate
14

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

Dentist Overview

How CORY ERNST fits within the Dentist landscape nationally.

93,789
Dentist Providers in US
56
States with Dentist
87
Avg Claims per Provider

CORY ERNST's 26 claims are below the specialty average of 87.

Nearby Dentist Providers in Maine

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

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

Frequently Asked Questions

What is CORY ERNST's specialty?
CORY ERNST specializes in Dentist and practices in PORTLAND, Maine.
How much does CORY ERNST prescribe under Medicare Part D?
In 2023, CORY ERNST wrote 26 Medicare Part D claims totaling $205 in drug costs for 22 beneficiaries.
Where is CORY ERNST located?
CORY ERNST is located at 1250 CONGRESS ST, PORTLAND, ME, 04102. Phone: (207) 775-1401.
What is CORY ERNST's NPI number?
CORY ERNST's National Provider Identifier (NPI) is 1295051563, issued on 04/12/2010.
How many Dentist providers are there in the US?
There are 93,789 Dentist providers across 56 states in the US. The average Dentist provider writes 87 Medicare Part D claims per year.
What drugs does CORY ERNST prescribe most often?
Based on 2023 Medicare Part D data, CORY ERNST's most frequently prescribed drugs include Chlorhexidine Gluconate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CORY ERNST accept Medicare?
CORY ERNST appears in CMS Medicare data with 26 Part D claims and 22 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CORY ERNST's credentials?
CORY ERNST's NPI is 1295051563. 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