2026 NPPES data Neurology Physician NPI 1629059407 MD
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THEODORE LOWENKOPF, MD

Neurology Physician 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
18
Medicare Part D claims · Neurology Physician avg: 1K

What the federal data shows

THEODORE LOWENKOPF, MD filed 18 Medicare Part D claims in 2023 as a Neurology Physician in PORTLAND, Oregon.

18
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.

THEODORE LOWENKOPF, MD's Medicare Part D volume vs every U.S. prescriber

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

18 0th percentile higher than 0% 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

Board-eligible specialty (heuristic — not verified)

THEODORE LOWENKOPF, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about THEODORE LOWENKOPF, MD?

Quality data not reported

NPI registry status

Active

Issued 11/09/2005

NPI 1629059407

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

18 99% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Oregon

How Neurology Physician compares to other specialties among Oregon providers

Oregon providers

Neurology Physician share within Oregon

1. Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology Physician share within Oregon

Specialty board-certification context

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

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

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

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

THEODORE LOWENKOPF, MD is a Neurology Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1629059407. 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.

THEODORE LOWENKOPF, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 9135 SW BARNES RD, PORTLAND, OR, 97225, with a listed phone of (503) 216-1150. NPI 1629059407 was issued on 11/09/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LOWENKOPF 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 18 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $192 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.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

9135 SW BARNES RD
PORTLAND, OR 97225

Provider Details

NPI 1629059407
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 11/09/2005

Medicare Part D Prescribing Data

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

18
Total Claims
$192
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19
Total Day Supply
534
Brand Drug Cost
$0
Generic Drug Cost
$192

Patient Demographics

Average Patient Age
80.4 years
Avg HCC Risk Score
1.10

Neurology Physician Overview

How THEODORE LOWENKOPF, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

THEODORE LOWENKOPF, MD's 18 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in Oregon

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

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THEODORE LOWENKOPF, MD's specialty?
THEODORE LOWENKOPF, MD specializes in Neurology Physician and practices in PORTLAND, Oregon. Credentials: MD.
How much does THEODORE LOWENKOPF, MD prescribe under Medicare Part D?
In 2023, THEODORE LOWENKOPF, MD wrote 18 Medicare Part D claims totaling $192 in drug costs for N/A beneficiaries.
Where is THEODORE LOWENKOPF, MD located?
THEODORE LOWENKOPF, MD is located at 9135 SW BARNES RD, PORTLAND, OR, 97225. Phone: (503) 216-1150.
What is THEODORE LOWENKOPF, MD's NPI number?
THEODORE LOWENKOPF, MD's National Provider Identifier (NPI) is 1629059407, issued on 11/09/2005.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
Does THEODORE LOWENKOPF, MD accept Medicare?
THEODORE LOWENKOPF, MD appears in CMS Medicare data with 18 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THEODORE LOWENKOPF, MD's credentials?
THEODORE LOWENKOPF, MD's NPI is 1629059407 with credentials MD. 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