2026 NPPES data Oncology Pharmacist NPI 1023635307 PHARMD
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CHARLES NI, PHARMD

Oncology Pharmacist in IOWA CITY, Iowa. 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
54
Medicare Part D claims · 21 beneficiaries · Oncology Pharmacist avg: 160
What the federal data reveals: CHARLES NI, PHARMD is a Oncology Pharmacist ([object Object]) practicing in IOWA CITY, Iowa with a Medicare Part D prescribing footprint of 54 claims across 21 beneficiaries .

What stands out: CHARLES NI, PHARMD filed 54 Medicare Part D claims in 2023 across IOWA CITY, Iowa. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CHARLES NI, PHARMD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/02/2020

NPI 1023635307

Primary specialty

Oncology Pharmacist

Niche

1,699 US NPIs in this specialty

Medicare Part D claims

54 66% vs specialty avg

2023 prescription claims

Specialty avg: 160

Specialty distribution in Iowa

How Oncology Pharmacist compares to other specialties among Iowa providers

Iowa providers

Oncology Pharmacist share within Iowa

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

Specialty board-certification context

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

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

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

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

CHARLES NI, PHARMD is a Oncology Pharmacist provider practicing in IOWA CITY, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHARMD. NPI: 1023635307. 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.

CHARLES NI, PHARMD appears in the CMS NPPES registry as a Oncology Pharmacist provider holding PHARMD credentials at 200 HAWKINS DR, IOWA CITY, IA, 52242, with a listed phone of (319) 356-1616. NPI 1023635307 was issued on 07/02/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NI 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 54 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $3K 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.

Oncology Pharmacist is a narrow specialty nationwide, with 1,699 enrolled providers across 50 states and an average of 160 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

200 HAWKINS DR
IOWA CITY, IA 52242

Provider Details

NPI 1023635307
Specialty Oncology Pharmacist
Credentials PHARMD
Gender Male
NPI Issued 07/02/2020

Medicare Part D Prescribing Data

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

54
Total Claims
$3K
Total Drug Cost
21
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
56
Total Day Supply
1,168
Brand Drug Cost
$0
Generic Drug Cost
$3K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.89

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Acyclovir
17
Prochlorperazine Maleate
15
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
13

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

Oncology Pharmacist Overview

How CHARLES NI, PHARMD fits within the Oncology Pharmacist landscape nationally.

1,699
Oncology Pharmacist Providers in US
50
States with Oncology Pharmacist
160
Avg Claims per Provider

CHARLES NI, PHARMD's 54 claims are below the specialty average of 160.

Nearby Oncology Pharmacist Providers in Iowa

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

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

Frequently Asked Questions

What is CHARLES NI, PHARMD's specialty?
CHARLES NI, PHARMD specializes in Oncology Pharmacist and practices in IOWA CITY, Iowa. Credentials: PHARMD.
How much does CHARLES NI, PHARMD prescribe under Medicare Part D?
In 2023, CHARLES NI, PHARMD wrote 54 Medicare Part D claims totaling $3K in drug costs for 21 beneficiaries.
Where is CHARLES NI, PHARMD located?
CHARLES NI, PHARMD is located at 200 HAWKINS DR, IOWA CITY, IA, 52242. Phone: (319) 356-1616.
What is CHARLES NI, PHARMD's NPI number?
CHARLES NI, PHARMD's National Provider Identifier (NPI) is 1023635307, issued on 07/02/2020.
How many Oncology Pharmacist providers are there in the US?
There are 1,699 Oncology Pharmacist providers across 50 states in the US. The average Oncology Pharmacist provider writes 160 Medicare Part D claims per year.
What drugs does CHARLES NI, PHARMD prescribe most often?
Based on 2023 Medicare Part D data, CHARLES NI, PHARMD's most frequently prescribed drugs include Acyclovir, Prochlorperazine Maleate, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHARLES NI, PHARMD accept Medicare?
CHARLES NI, PHARMD appears in CMS Medicare data with 54 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES NI, PHARMD's credentials?
CHARLES NI, PHARMD's NPI is 1023635307 with credentials PHARMD. 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