NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1396783726 M.D.
Verify on CMS → Darrel Forslund, M.D.
Family Medicine Physician in Spencer, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, 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
7K
Medicare Part D claims · 531 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Darrel Forslund, M.D. filed 7,046 Medicare Part D claims in 2023 as a Family Medicine Physician in Spencer, Iowa, prescribing 91% generic.
- 7K
- Part D claims, 2023
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥96th
- pct by Part D claim volume (lower-bound band)
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.
Darrel Forslund, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
7,046 ≥ 96th percentile 96% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Darrel Forslund, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Darrel Forslund, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
7,046 106% vs specialty avg
Specialty distribution in Iowa
How Family Medicine Physician compares to other specialties among Iowa 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 Family Medicine Physician. 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).
Darrel Forslund, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 1915 W 4TH ST, Spencer, IA, 51301, with a listed phone of (712) 262-5479. NPI 1396783726 was issued on 06/04/2006.
Medicare Part D records for calendar year 2023 show 7,046 prescription claims written by this provider, covering 531 Medicare beneficiaries and totaling roughly $510K in drug spend, split 8% brand-name and 91% generic by claim count, with an opioid prescribing rate of 4.1%.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1396783726 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/04/2006 |
Hospital and facility affiliations
Facilities where Darrel Forslund, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Banner Health Physicians Colorado LLC
Johnstown, CO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Darrel Forslund, M.D. - brand share 8.0%
Family Medicine Physician average
8% brand-name claims vs 91% generic, on 7,046 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.
7,046
Total Claims
$510K
Total Drug Cost
531
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 16,379
- Total Day Supply
- 474,834
- Brand vs Generic
- 8% brand / 91% generic
- Brand Drug Cost
- $372K
- Generic Drug Cost
- $136K
- Opioid Claims
- 286 (4.1% rate)
- Antibiotic Claims
- 270
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.15
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 51, 65-74: 259, 75-84: 177, 85+: 44
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Darrel Forslund, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
430 claims
- Levothyroxine Sodium
Levothyroxine Sodium
287 claims
- Metformin Hcl
Metformin Hcl
270 claims
- Lisinopril
Lisinopril
258 claims
- Amlodipine Besylate
Amlodipine Besylate
225 claims
- Losartan Potassium
Losartan Potassium
220 claims
- Omeprazole
Omeprazole
180 claims
- Simvastatin
Simvastatin
178 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 430 |
| Levothyroxine Sodium | 287 |
| Metformin Hcl | 270 |
| Lisinopril | 258 |
| Amlodipine Besylate | 225 |
| Losartan Potassium | 220 |
| Omeprazole | 180 |
| Simvastatin | 178 |
| Tamsulosin Hcl | 170 |
| Trazodone Hcl | 138 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Darrel Forslund, M.D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Darrel Forslund, M.D.'s 7,046 claims are above the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Forslund.
One of 2,267 Family Medicine Physician providers enrolled in Iowa, 5 are shown here.
Dr. Jennifer Aanestad
M.D.
Durant, IA
Dr. Amjad Abdelhady
MD
Sioux City, IA
Dr. Afsana Abdullah
D.O.
Bettendorf, IA
Dr. Raja Ali Abdullah
MD
Cedar Falls, IA
Dr. Laura Abels
DO
Ankeny, IA
Compare Family Medicine Physician 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 Iowa medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine Physician 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
Verify Credentials
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 Iowa
Frequently Asked Questions
What is Darrel Forslund, M.D.'s specialty? ▼
Darrel Forslund, M.D. specializes in Family Medicine Physician and practices in Spencer, Iowa. Credentials: M.D..
How much does Darrel Forslund, M.D. prescribe under Medicare Part D? ▼
In 2023, Darrel Forslund, M.D. wrote 7,046 Medicare Part D claims totaling $510K in drug costs for 531 beneficiaries.
Where is Darrel Forslund, M.D. located? ▼
Darrel Forslund, M.D. is located at 1915 W 4TH ST, Spencer, IA, 51301. Phone: (712) 262-5479.
What is Darrel Forslund, M.D.'s NPI number? ▼
Darrel Forslund, M.D.'s National Provider Identifier (NPI) is 1396783726, issued on 06/04/2006.
Does Darrel Forslund, M.D. prescribe more brand-name or generic drugs? ▼
Darrel Forslund, M.D.'s prescribing is 8% brand-name and 91% generic drugs by claim count, with $372K in brand drug costs.
Does Darrel Forslund, M.D. prescribe opioids? ▼
Yes, Darrel Forslund, M.D. had 286 opioid claims in 2023 with an opioid prescribing rate of 4.1%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Darrel Forslund, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Darrel Forslund, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Darrel Forslund, M.D. accept Medicare? ▼
Darrel Forslund, M.D. appears in CMS Medicare data with 7,046 Part D claims and 531 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Darrel Forslund, M.D.'s credentials? ▼
Darrel Forslund, M.D.'s NPI is 1396783726 with credentials M.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
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.