NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1407967235 MD
Verify on CMS → Mitchell Ahrens, MD
Internal Medicine Physician in Springfield, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal 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
3K
Medicare Part D claims · 333 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
0%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.2K
43 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mitchell Ahrens, MD filed 2,536 Medicare Part D claims in 2023 as a Internal Medicine Physician in Springfield, Missouri, prescribing 0% generic.
- 3K
- Part D claims, 2023
- 0%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Mitchell Ahrens, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,536 Top 13% higher than 87% 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
✓
Board certification likely (heuristic, not verified)
Mitchell Ahrens, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Mitchell Ahrens, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
2,536 7% vs specialty avg
Specialty distribution in Missouri
How Internal Medicine Physician compares to other specialties among Missouri 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 Internal 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).
Mitchell Ahrens, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 3800 S NATIONAL AVE STE 510, Springfield, MO, 65807, with a listed phone of (417) 875-3160. NPI 1407967235 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 2,536 prescription claims written by this provider, covering 333 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 53% brand-name and 0% generic by claim count.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1407967235 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/31/2006 |
Hospital and facility affiliations
Facilities where Mitchell Ahrens, MD 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.
According to CMS billing records, Mitchell Ahrens, MD is affiliated with 3 Medicare-billing facilities across 2 states, 1 of which carry a CMS Hospital overall star rating.
North Arkansas Regional Medical Center
★★☆☆☆ 2/5
Harrison, AR
Acute Care Hospitals
CMS CCN: 040017
Lester E Cox Medical Centers
Ozark, MO
Select Specialty Hospital Springfield Inc
Springfield, MO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mitchell Ahrens, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.2K
Largest payer
Inspire Medical Systems, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Mitchell Ahrens, MD - brand share 53.0%
Internal Medicine Physician average
53% brand-name claims vs 0% generic, on 2,536 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.
2,536
Total Claims
$1.1M
Total Drug Cost
333
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,185
- Total Day Supply
- 87,274
- Brand vs Generic
- 53% brand / 0% generic
- Brand Drug Cost
- $986K
- Antibiotic Claims
- 153
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 1.91
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 61, 65-74: 137, 75-84: 105, 85+: 30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mitchell Ahrens, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
345 claims
- Trelegy Ellipta
Trelegy Ellipta
312 claims
- Breztri Aerosphere
Breztri Aerosphere
188 claims
- Montelukast Sodium
Montelukast Sodium
144 claims
- Roflumilast 112
Roflumilast
112 claims
- Prednisone 96
Prednisone
96 claims
- Azithromycin 91
Azithromycin
91 claims
- Stiolto Respimat 74
Stiolto Respimat
74 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 345 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 312 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 188 |
| Montelukast Sodium | 144 |
| Roflumilast | 112 |
| Prednisone | 96 |
| Azithromycin | 91 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 74 |
| Symbicort Budesonide/Formoterol Fumarate | 71 |
| Armodafinil | 70 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Mitchell Ahrens, MD fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Mitchell Ahrens, MD's 2,536 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Ahrens.
Dr. Betty Abban
M.D.
Springfield, MO
Dr. Amer Abbas
MD
Chesterfield, MO
Dr. Marghoob Abbas
M.D.
St. Joseph, MO
Dr. Muhammad Khalid Abbas
M.D.
Springfield, MO
Dr. Sundas Abbas
MD
Richmond Heights, MO
Compare Internal 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal 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
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Mitchell Ahrens, MD's specialty? ▼
Mitchell Ahrens, MD specializes in Internal Medicine Physician and practices in Springfield, Missouri. Credentials: MD.
How much does Mitchell Ahrens, MD prescribe under Medicare Part D? ▼
In 2023, Mitchell Ahrens, MD wrote 2,536 Medicare Part D claims totaling $1.1M in drug costs for 333 beneficiaries.
Where is Mitchell Ahrens, MD located? ▼
Mitchell Ahrens, MD is located at 3800 S NATIONAL AVE STE 510, Springfield, MO, 65807. Phone: (417) 875-3160.
What is Mitchell Ahrens, MD's NPI number? ▼
Mitchell Ahrens, MD's National Provider Identifier (NPI) is 1407967235, issued on 08/31/2006.
Does Mitchell Ahrens, MD prescribe more brand-name or generic drugs? ▼
Mitchell Ahrens, MD's prescribing is 53% brand-name and 0% generic drugs by claim count, with $986K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Mitchell Ahrens, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mitchell Ahrens, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Breztri Aerosphere. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mitchell Ahrens, MD accept Medicare? ▼
Mitchell Ahrens, MD appears in CMS Medicare data with 2,536 Part D claims and 333 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mitchell Ahrens, MD's credentials? ▼
Mitchell Ahrens, MD's NPI is 1407967235 with credentials MD. 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.