2026 NPPES data Endodontics NPI 1619973070 DMD
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TERRY ISOM, DMD

Endodontics in PORTLAND, 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
161
Medicare Part D claims · 79 beneficiaries · Endodontics avg: 116

What the federal data shows

TERRY ISOM, DMD filed 161 Medicare Part D claims in 2023 as a Endodontics in PORTLAND, Oregon.

161
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.

TERRY ISOM, DMD's Medicare Part D volume vs every U.S. prescriber

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

161 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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 TERRY ISOM, DMD?

Quality data not reported

NPI registry status

Active

Issued 06/21/2005

NPI 1619973070

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

161 39% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in Oregon

How Endodontics compares to other specialties among Oregon providers

Oregon providers

Endodontics share within Oregon

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Oregon

Specialty board-certification context

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

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

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

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

TERRY ISOM, DMD is a Endodontics provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DMD. NPI: 1619973070. 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.

TERRY ISOM, DMD appears in the CMS NPPES registry as a Endodontics provider holding DMD credentials at 6400 SE LAKE RD, PORTLAND, OR, 97222, with a listed phone of (503) 496-4766. NPI 1619973070 was issued on 06/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ISOM 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 161 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $566 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

6400 SE LAKE RD
PORTLAND, OR 97222

Provider Details

NPI 1619973070
Specialty Endodontics
Credentials DMD
Gender Male
NPI Issued 06/21/2005

Medicare Part D Prescribing Data

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

161
Total Claims
$566
Total Drug Cost
79
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
161
Total Day Supply
627
Brand Drug Cost
$0
Generic Drug Cost
$566
Antibiotic Claims
14

Patient Demographics

Average Patient Age
67.2 years
Avg HCC Risk Score
0.75
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Dexamethasone
82
Ibuprofen
59

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

Endodontics Overview

How TERRY ISOM, DMD fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

TERRY ISOM, DMD's 161 claims are above the specialty average of 116.

Nearby Endodontics Providers in Oregon

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

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

Frequently Asked Questions

What is TERRY ISOM, DMD's specialty?
TERRY ISOM, DMD specializes in Endodontics and practices in PORTLAND, Oregon. Credentials: DMD.
How much does TERRY ISOM, DMD prescribe under Medicare Part D?
In 2023, TERRY ISOM, DMD wrote 161 Medicare Part D claims totaling $566 in drug costs for 79 beneficiaries.
Where is TERRY ISOM, DMD located?
TERRY ISOM, DMD is located at 6400 SE LAKE RD, PORTLAND, OR, 97222. Phone: (503) 496-4766.
What is TERRY ISOM, DMD's NPI number?
TERRY ISOM, DMD's National Provider Identifier (NPI) is 1619973070, issued on 06/21/2005.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does TERRY ISOM, DMD prescribe most often?
Based on 2023 Medicare Part D data, TERRY ISOM, DMD's most frequently prescribed drugs include Dexamethasone, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TERRY ISOM, DMD accept Medicare?
TERRY ISOM, DMD appears in CMS Medicare data with 161 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TERRY ISOM, DMD's credentials?
TERRY ISOM, DMD's NPI is 1619973070 with credentials DMD. 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