2026 NPPES data Pharmacist NPI 1134851561 PHARM D
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LORRAINE DE LA RIVA, PHARM D

Pharmacist in WOODBURN, 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
163
Medicare Part D claims · 67 beneficiaries · Pharmacist avg: 135
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LORRAINE DE LA RIVA, PHARM D filed 163 Medicare Part D claims in 2023 as a Pharmacist in WOODBURN, Oregon, prescribing 72% generic.

163
Part D claims, 2023
72%
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.

LORRAINE DE LA RIVA, PHARM D's Medicare Part D volume vs every U.S. prescriber

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

163 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 LORRAINE DE LA RIVA, PHARM D?

Quality data not reported

NPI registry status

Active

Issued 06/24/2022

NPI 1134851561

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

163 21% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Oregon

How Pharmacist compares to other specialties among Oregon providers

Oregon providers

Pharmacist share within Oregon

1. Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pharmacist share within Oregon

Specialty board-certification context

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

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

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

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

LORRAINE DE LA RIVA, PHARM D appears in the CMS NPPES registry as a Pharmacist provider holding PHARM D credentials at 1175 MOUNT HOOD AVE, WOODBURN, OR, 97071, with a listed phone of (503) 982-2000. NPI 1134851561 was issued on 06/24/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DE LA RIVA 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 163 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $117K in drug spend, split 28% brand-name and 72% 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.

Pharmacist is a high-volume specialty nationwide, with 290,447 enrolled providers across 56 states and an average of 135 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

1175 MOUNT HOOD AVE
WOODBURN, OR 97071

Provider Details

NPI 1134851561
Specialty Pharmacist
Credentials PHARM D
Gender Female
NPI Issued 06/24/2022

Brand vs generic prescribing mix · Above average

LORRAINE DE LA RIVA, PHARM D — brand share 28.0%
Specialty average (est.)

28% brand-name claims vs 72% generic, on 163 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.

163
Total Claims
$117K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
309
Total Day Supply
9,045
Brand vs Generic
28% brand / 72% generic
Brand Drug Cost
$115K
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
67.0 years
Avg HCC Risk Score
1.53
Gender Split
57% female / 43% male
Age Distribution
<65: 19, 65-74: 32, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Metformin Hcl
12
Warfarin Sodium
11

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

Pharmacist Overview

How LORRAINE DE LA RIVA, PHARM D fits within the Pharmacist landscape nationally.

290,447
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider

LORRAINE DE LA RIVA, PHARM D's 163 claims are above the specialty average of 135.

Nearby Pharmacist Providers in Oregon

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

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

Frequently Asked Questions

What is LORRAINE DE LA RIVA, PHARM D's specialty?
LORRAINE DE LA RIVA, PHARM D specializes in Pharmacist and practices in WOODBURN, Oregon. Credentials: PHARM D.
How much does LORRAINE DE LA RIVA, PHARM D prescribe under Medicare Part D?
In 2023, LORRAINE DE LA RIVA, PHARM D wrote 163 Medicare Part D claims totaling $117K in drug costs for 67 beneficiaries.
Where is LORRAINE DE LA RIVA, PHARM D located?
LORRAINE DE LA RIVA, PHARM D is located at 1175 MOUNT HOOD AVE, WOODBURN, OR, 97071. Phone: (503) 982-2000.
What is LORRAINE DE LA RIVA, PHARM D's NPI number?
LORRAINE DE LA RIVA, PHARM D's National Provider Identifier (NPI) is 1134851561, issued on 06/24/2022.
Does LORRAINE DE LA RIVA, PHARM D prescribe more brand-name or generic drugs?
LORRAINE DE LA RIVA, PHARM D's prescribing is 28% brand-name and 72% generic drugs by claim count, with $115K in brand drug costs.
How many Pharmacist providers are there in the US?
There are 290,447 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does LORRAINE DE LA RIVA, PHARM D prescribe most often?
Based on 2023 Medicare Part D data, LORRAINE DE LA RIVA, PHARM D's most frequently prescribed drugs include Metformin Hcl, Warfarin Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LORRAINE DE LA RIVA, PHARM D accept Medicare?
LORRAINE DE LA RIVA, PHARM D appears in CMS Medicare data with 163 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LORRAINE DE LA RIVA, PHARM D's credentials?
LORRAINE DE LA RIVA, PHARM D's NPI is 1134851561 with credentials PHARM D. 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