2026 NPPES data Periodontics NPI 1851470280 DDS
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JEFFREY PHELPS, DDS

Periodontics in EUGENE, Oregon. 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
52
Medicare Part D claims · 24 beneficiaries · Periodontics avg: 264
What the federal data reveals: JEFFREY PHELPS, DDS is a Periodontics ([object Object]) practicing in EUGENE, Oregon with a Medicare Part D prescribing footprint of 52 claims across 24 beneficiaries .

What stands out: JEFFREY PHELPS, DDS filed 52 Medicare Part D claims in 2023 across EUGENE, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JEFFREY PHELPS, DDS at a glance

Quality data not reported

NPI registry status

Active

Issued 11/05/2006

NPI 1851470280

Primary specialty

Periodontics

Mid-sized

6,061 US NPIs in this specialty

Medicare Part D claims

52 80% vs specialty avg

2023 prescription claims

Specialty avg: 264

Specialty distribution in Oregon

How Periodontics compares to other specialties among Oregon providers

Oregon providers

Periodontics share within Oregon

1. Periodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Periodontics share within Oregon

Specialty board-certification context

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

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

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

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

JEFFREY PHELPS, DDS is a Periodontics provider practicing in EUGENE, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DDS. NPI: 1851470280. 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.

JEFFREY PHELPS, DDS appears in the CMS NPPES registry as a Periodontics provider holding DDS credentials at 3225 WILLAMETTE ST STE 1, EUGENE, OR, 97405, with a listed phone of (541) 686-9715. NPI 1851470280 was issued on 11/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PHELPS 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 52 prescription claims written by this provider, covering 24 Medicare beneficiaries and totaling roughly $243 in drug spend, with an opioid prescribing rate of 32.7%. 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.

Periodontics is a mid-sized specialty nationwide, with 6,061 enrolled providers across 53 states and an average of 264 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

3225 WILLAMETTE ST STE 1
EUGENE, OR 97405

Provider Details

NPI 1851470280
Specialty Periodontics
Credentials DDS
Gender Male
NPI Issued 11/05/2006

Medicare Part D Prescribing Data

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

52
Total Claims
$243
Total Drug Cost
24
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
56
Total Day Supply
574
Brand Drug Cost
$0
Generic Drug Cost
$243
Opioid Claims
17 (32.7% rate)
Antibiotic Claims
20

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
0.78

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
15
Amoxicillin
14
Chlorhexidine Gluconate
12

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

Periodontics Overview

How JEFFREY PHELPS, DDS fits within the Periodontics landscape nationally.

6,061
Periodontics Providers in US
53
States with Periodontics
264
Avg Claims per Provider

JEFFREY PHELPS, DDS's 52 claims are below the specialty average of 264.

Nearby Periodontics Providers in Oregon

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

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

Frequently Asked Questions

What is JEFFREY PHELPS, DDS's specialty?
JEFFREY PHELPS, DDS specializes in Periodontics and practices in EUGENE, Oregon. Credentials: DDS.
How much does JEFFREY PHELPS, DDS prescribe under Medicare Part D?
In 2023, JEFFREY PHELPS, DDS wrote 52 Medicare Part D claims totaling $243 in drug costs for 24 beneficiaries.
Where is JEFFREY PHELPS, DDS located?
JEFFREY PHELPS, DDS is located at 3225 WILLAMETTE ST STE 1, EUGENE, OR, 97405. Phone: (541) 686-9715.
What is JEFFREY PHELPS, DDS's NPI number?
JEFFREY PHELPS, DDS's National Provider Identifier (NPI) is 1851470280, issued on 11/05/2006.
Does JEFFREY PHELPS, DDS prescribe opioids?
Yes, JEFFREY PHELPS, DDS had 17 opioid claims in 2023 with an opioid prescribing rate of 32.7%.
How many Periodontics providers are there in the US?
There are 6,061 Periodontics providers across 53 states in the US. The average Periodontics provider writes 264 Medicare Part D claims per year.
What drugs does JEFFREY PHELPS, DDS prescribe most often?
Based on 2023 Medicare Part D data, JEFFREY PHELPS, DDS's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Amoxicillin, Chlorhexidine Gluconate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFREY PHELPS, DDS accept Medicare?
JEFFREY PHELPS, DDS appears in CMS Medicare data with 52 Part D claims and 24 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFREY PHELPS, DDS's credentials?
JEFFREY PHELPS, DDS's NPI is 1851470280 with credentials DDS. 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