2026 NPPES data Pharmacist NPI 1629623442
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MARILEE CHAPMAN

Pharmacist in WARM SPRINGS, 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
39
Medicare Part D claims · 13 beneficiaries · Pharmacist avg: 135

What the federal data shows

MARILEE CHAPMAN filed 39 Medicare Part D claims in 2023 as a Pharmacist in WARM SPRINGS, Oregon.

39
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.

MARILEE CHAPMAN's Medicare Part D volume vs every U.S. prescriber

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

39 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

What does the federal data show about MARILEE CHAPMAN?

Quality data not reported

NPI registry status

Active

Issued 08/08/2019

NPI 1629623442

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

39 71% 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).

MARILEE CHAPMAN appears in the CMS NPPES registry as a Pharmacist provider at 1270 KOT-NUM ROAD, WARM SPRINGS, OR, 97761, with a listed phone of (541) 553-1196. NPI 1629623442 was issued on 08/08/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAPMAN 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 39 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $12K 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.

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

1270 KOT-NUM ROAD
WARM SPRINGS, OR 97761

Provider Details

NPI 1629623442
Specialty Pharmacist
Gender Female
NPI Issued 08/08/2019

Medicare Part D Prescribing Data

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

39
Total Claims
$12K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
57
Total Day Supply
1,638
Generic Drug Cost
$426

Patient Demographics

Average Patient Age
67.6 years
Avg HCC Risk Score
1.93

Pharmacist Overview

How MARILEE CHAPMAN fits within the Pharmacist landscape nationally.

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

MARILEE CHAPMAN's 39 claims are below 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 CHAPMAN.

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

Frequently Asked Questions

What is MARILEE CHAPMAN's specialty?
MARILEE CHAPMAN specializes in Pharmacist and practices in WARM SPRINGS, Oregon.
How much does MARILEE CHAPMAN prescribe under Medicare Part D?
In 2023, MARILEE CHAPMAN wrote 39 Medicare Part D claims totaling $12K in drug costs for 13 beneficiaries.
Where is MARILEE CHAPMAN located?
MARILEE CHAPMAN is located at 1270 KOT-NUM ROAD, WARM SPRINGS, OR, 97761. Phone: (541) 553-1196.
What is MARILEE CHAPMAN's NPI number?
MARILEE CHAPMAN's National Provider Identifier (NPI) is 1629623442, issued on 08/08/2019.
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.
Does MARILEE CHAPMAN accept Medicare?
MARILEE CHAPMAN appears in CMS Medicare data with 39 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARILEE CHAPMAN's credentials?
MARILEE CHAPMAN's NPI is 1629623442. 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