2026 NPPES data Pharmacist NPI 1316514508
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CHRISTOPHER CHAPMAN

Pharmacist in BOISE, Idaho. 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
277
Medicare Part D claims · 220 beneficiaries · Pharmacist avg: 135
Generic prescribing
4%
generic claims · 96% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTOPHER CHAPMAN filed 277 Medicare Part D claims in 2023 as a Pharmacist in BOISE, Idaho, prescribing 4% generic.

277
Part D claims, 2023
4%
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.

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

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

277 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 CHRISTOPHER CHAPMAN?

Quality data not reported

NPI registry status

Active

Issued 06/07/2021

NPI 1316514508

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

277 105% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Idaho

How Pharmacist compares to other specialties among Idaho providers

Idaho providers

Pharmacist share within Idaho

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

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).

CHRISTOPHER CHAPMAN is a Pharmacist provider practicing in BOISE, Idaho, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1316514508. 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.

CHRISTOPHER CHAPMAN appears in the CMS NPPES registry as a Pharmacist provider at 1515 W STATE ST, BOISE, ID, 83702, with a listed phone of (208) 345-7684. NPI 1316514508 was issued on 06/07/2021. 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 277 prescription claims written by this provider, covering 220 Medicare beneficiaries and totaling roughly $73K in drug spend, split 96% brand-name and 4% 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

1515 W STATE ST
BOISE, ID 83702

Provider Details

NPI 1316514508
Specialty Pharmacist
Gender Male
NPI Issued 06/07/2021

Brand vs generic prescribing mix · Brand-heavy

CHRISTOPHER CHAPMAN — brand share 96.0%
Specialty average (est.)

96% brand-name claims vs 4% generic, on 277 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.

277
Total Claims
$73K
Total Drug Cost
220
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
282
Total Day Supply
811
Brand vs Generic
96% brand / 4% generic
Brand Drug Cost
$72K

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.07
Gender Split
55% female / 45% male
Age Distribution
<65: 17, 65-74: 107, 75-84: 81, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Shingrix
Varicella-Zoster Ge/As01b/Pf
96
Abrysvo
"Rsv Vacc
N/A
Adacel Tdap
"Diph
N/A

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

Pharmacist Overview

How CHRISTOPHER CHAPMAN fits within the Pharmacist landscape nationally.

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

CHRISTOPHER CHAPMAN's 277 claims are above the specialty average of 135.

Nearby Pharmacist Providers in Idaho

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

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

Frequently Asked Questions

What is CHRISTOPHER CHAPMAN's specialty?
CHRISTOPHER CHAPMAN specializes in Pharmacist and practices in BOISE, Idaho.
How much does CHRISTOPHER CHAPMAN prescribe under Medicare Part D?
In 2023, CHRISTOPHER CHAPMAN wrote 277 Medicare Part D claims totaling $73K in drug costs for 220 beneficiaries.
Where is CHRISTOPHER CHAPMAN located?
CHRISTOPHER CHAPMAN is located at 1515 W STATE ST, BOISE, ID, 83702. Phone: (208) 345-7684.
What is CHRISTOPHER CHAPMAN's NPI number?
CHRISTOPHER CHAPMAN's National Provider Identifier (NPI) is 1316514508, issued on 06/07/2021.
Does CHRISTOPHER CHAPMAN prescribe more brand-name or generic drugs?
CHRISTOPHER CHAPMAN's prescribing is 96% brand-name and 4% generic drugs by claim count, with $72K 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 CHRISTOPHER CHAPMAN prescribe most often?
Based on 2023 Medicare Part D data, CHRISTOPHER CHAPMAN's most frequently prescribed drugs include Shingrix, Abrysvo, Adacel Tdap. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTOPHER CHAPMAN accept Medicare?
CHRISTOPHER CHAPMAN appears in CMS Medicare data with 277 Part D claims and 220 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER CHAPMAN's credentials?
CHRISTOPHER CHAPMAN's NPI is 1316514508. 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