Dr. Michael Leroy Ahrens, MD
- Part D claims, 2024
- 115
- Hospital affiliations
- 2
- Industry payments
- $1,709
- Medical group
- 1
- State licenses
- 2
- Practice address
- 14700 Lakeshore Drive, Charlevoix, MI 49720
- Practice phone
- Call (231) 547-4024
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ahrens' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael Leroy Ahrens is an internist in Charlevoix, Michigan
Dr. Ahrens practices at Munson Healthcare Charlevoix Hospital in Charlevoix, Michigan, part of Munson Healthcare.
Dr. Ahrens' NPI, 1669051215, was assigned on April 2, 2021. Dr. Ahrens holds Michigan license 4301515242.
- NPI
- 1669051215NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921409756
- NPI enumeration date
- April 2, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (231) 547-4024
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Leroy Ahrens practices at Munson Healthcare Charlevoix Hospital in Charlevoix, Michigan
Dr. Ahrens' primary practice is Munson Healthcare Charlevoix Hospital, at 14700 Lakeshore Drive, Charlevoix, MI 49720 in Charlevoix County. The practice phone is (231) 547-4024.
- Munson Healthcare Charlevoix Hospital14700 Lakeshore Drive, Charlevoix, MI 49720 · Charlevoix CountyPhone(231) 547-4024
Source: Dmand AI Affiliation Data
Dr. Michael Leroy Ahrens is affiliated with 3 sites of care and 1 medical group
Dr. Ahrens' primary practice is Munson Healthcare Charlevoix Hospital in Charlevoix, Michigan, part of Munson Healthcare. Dr. Ahrens is also affiliated with McLaren Greater Lansing. The medical group on file is Capital Internal Medicine Associates. Dmand AI also links Dr. Ahrens to 1 more breast imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Leroy Ahrens' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahrens practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Munson Healthcare Charlevoix Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Munson Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Leroy Ahrens is one of 4,804 internists in Michigan
Internal medicine is Dr. Ahrens' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Ahrens' licenses on file in 2 states: Michigan and Kansas.
Specialties and state licenses
- Internal medicine, MichiganPrimary
- Kansas license
Internists near Dr. Ahrens
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Leroy Ahrens' patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Ahrens' median patient age at 72, with 69% women.
Dr. Ahrens' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women69%
- Men31%
Source: Dmand AI Patient Panel Data
Dr. Michael Leroy Ahrens wrote 115 Medicare Part D claims in 2024
In 2024, Dr. Ahrens wrote 115 Medicare Part D claims for 38 patients. 86% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $184 in total drug cost.
Dr. Ahrens' Part D claims by kind of drug, 2024
- Generic99 claims86%
- Brand-name16 claims14%
Dr. Ahrens' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ahrens' Part D claims, 2024
- Antibiotics12%14 of 115 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Michael Leroy Ahrens takes part in Medicare
Dr. Ahrens accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Michael Leroy Ahrens received $1,709 in industry payments from 2024 to 2025
CMS Open Payments shows 26 general payments to Dr. Ahrens from 14 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Paratek Pharmaceuticals, Inc. paid the most, $343.
General payments to Dr. Ahrens by program year, 2024 to 2025
Companies that paid Dr. Ahrens the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Leroy Ahrens's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Leroy Ahrens
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Leroy Ahrens' NPI number?
Dr. Michael Leroy Ahrens' NPI number is 1669051215. It was assigned on April 2, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Leroy Ahrens?
Dr. Michael Leroy Ahrens is an internist in Charlevoix, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Leroy Ahrens practice?
Dr. Ahrens practices at 14700 Lakeshore Drive, Charlevoix, MI 49720. Dr. Ahrens' primary practice is Munson Healthcare Charlevoix Hospital in Charlevoix, Michigan, part of Munson Healthcare. Dmand AI also links Dr. Ahrens to 1 breast imaging center.
What is Dr. Michael Leroy Ahrens' office phone number?
The practice phone on file for Dr. Ahrens is (231) 547-4024.
What is Dr. Michael Leroy Ahrens' medical license number?
Dr. Ahrens holds Michigan license 4301515242, one of the licenses on file in 2 states.
Which states has Dr. Michael Leroy Ahrens been licensed in?
Dmand AI has state licenses on file for Dr. Ahrens in Michigan and Kansas.
Which hospitals is Dr. Michael Leroy Ahrens affiliated with?
Dr. Ahrens practices at Munson Healthcare Charlevoix Hospital in Charlevoix, Michigan. Dr. Ahrens is also affiliated with McLaren Greater Lansing.
What medical group is Dr. Michael Leroy Ahrens part of?
Dr. Ahrens is linked to Capital Internal Medicine Associates.
Does Dr. Michael Leroy Ahrens accept Medicare?
Yes. CMS lists Dr. Ahrens as accepting Medicare assignment.
What drugs does Dr. Michael Leroy Ahrens prescribe most?
In 2024 Medicare Part D data, Dr. Ahrens' most prescribed drugs by claims were Duloxetine HCl.
Has Dr. Michael Leroy Ahrens received payments from drug or device companies?
CMS Open Payments shows $1,709 in general payments to Dr. Ahrens from 14 companies from 2024 to 2025. The largest total came from Paratek Pharmaceuticals, Inc.
How long has Dr. Michael Leroy Ahrens been practicing?
Dr. Ahrens graduated from medical school in 2021, 5 years ago.
Selling to internal medicine practices?
See internists in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card