NPI registry status
Active
2026 NPPES data Pharmacist NPI 1912308438 PHARM.D.
Verify on CMS → Derik Christensen, PHARM.D.
Pharmacist in Ammon, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 291,043 in Pharmacist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
423
Medicare Part D claims · 206 beneficiaries · Pharmacist avg: 135
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Derik Christensen, PHARM.D. filed 423 Medicare Part D claims in 2023 as a Pharmacist in Ammon, Idaho.
- 423
- 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.
Derik Christensen, PHARM.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
423 Top 38% higher than 62% of 1,370,886 prescribers
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 Derik Christensen, PHARM.D.?
Quality data not reportedPrimary specialty
Pharmacist
Medicare Part D claims
423 213% vs specialty avg
Specialty distribution in Idaho
How Pharmacist compares to other specialties among Idaho providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pharmacist. Verify directly:
How MIPS and board certification work
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).
Derik Christensen, PHARM.D. appears in the CMS NPPES registry as a Pharmacist provider holding PHARM.D. credentials at 3250 E 17TH ST, Ammon, ID, 83406, with a listed phone of (208) 552-7677. NPI 1912308438 was issued on 09/16/2014.
Medicare Part D records for calendar year 2023 show 423 prescription claims written by this provider, covering 206 Medicare beneficiaries and totaling roughly $19K in drug spend.
Pharmacist is a high-volume specialty nationwide, with 291,043 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
Provider Details
| NPI | 1912308438 |
|---|---|
| Specialty | Pharmacist |
| Credentials | PHARM.D. |
| Gender | Male |
| NPI Issued | 09/16/2014 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
423
Total Claims
$19K
Total Drug Cost
206
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 430
- Total Day Supply
- 10,817
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 68.3 years
- Avg HCC Risk Score
- 1.73
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 76, 65-74: 30, 75-84: 47, 85+: 53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Derik Christensen, PHARM.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
21 claims
- Omeprazole
Omeprazole
19 claims
- Escitalopram Oxalate
Escitalopram Oxalate
15 claims
- Atorvastatin Calcium
Atorvastatin Calcium
14 claims
- Gabapentin
Gabapentin
13 claims
- Eliquis
Eliquis
11 claims
- Furosemide
Furosemide
11 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 21 |
| Omeprazole | 19 |
| Escitalopram Oxalate | 15 |
| Atorvastatin Calcium | 14 |
| Gabapentin | 13 |
| Eliquis Apixaban | 11 |
| Furosemide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pharmacist Overview
How Derik Christensen, PHARM.D. fits within the Pharmacist landscape nationally.
291,043
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider
Derik Christensen, PHARM.D.'s 423 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 Christensen.
Dr. Brooke Ackerman
PHARMD
Rathdrum, ID
Dr. Peter Adamovich
PHARMD
Pocatello, ID
Dr. Jennifer Adams
PHARM.D., ED.D.
Meridian, ID
Dr. Jordan Adams
PHARMD
Idaho Falls, ID
Dr. Spencer Adams
PHARM D
Pocatello, ID
Compare Pharmacist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pharmacist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Idaho
Frequently Asked Questions
What is Derik Christensen, PHARM.D.'s specialty? ▼
Derik Christensen, PHARM.D. specializes in Pharmacist and practices in Ammon, Idaho. Credentials: PHARM.D..
How much does Derik Christensen, PHARM.D. prescribe under Medicare Part D? ▼
In 2023, Derik Christensen, PHARM.D. wrote 423 Medicare Part D claims totaling $19K in drug costs for 206 beneficiaries.
Where is Derik Christensen, PHARM.D. located? ▼
Derik Christensen, PHARM.D. is located at 3250 E 17TH ST, Ammon, ID, 83406. Phone: (208) 552-7677.
What is Derik Christensen, PHARM.D.'s NPI number? ▼
Derik Christensen, PHARM.D.'s National Provider Identifier (NPI) is 1912308438, issued on 09/16/2014.
How many Pharmacist providers are there in the US? ▼
There are 291,043 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does Derik Christensen, PHARM.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Derik Christensen, PHARM.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Omeprazole, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Derik Christensen, PHARM.D. accept Medicare? ▼
Derik Christensen, PHARM.D. appears in CMS Medicare data with 423 Part D claims and 206 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Derik Christensen, PHARM.D.'s credentials? ▼
Derik Christensen, PHARM.D.'s NPI is 1912308438 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.