Dr. Brian D. Mahany, DO
- Medicare services, 2024
- 995
- Medicare patients, 2024
- 158
- Part D claims, 2024
- 9,083
- Hospital affiliations
- 5
- Industry payments
- $915
- Practice address
- 2311 S Cedar St Suite B Suite B, Lansing, MI 48910-3191
- Practice phone
- Call (517) 484-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mid Michigan Internal Medicine
Primary care practice · Lansing, Michigan
Find Dr. Mahany's 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. Brian D. Mahany is an internist in Lansing, Michigan
Dr. Mahany practices at Mid Michigan Internal Medicine in Lansing, Michigan.
Dr. Mahany's NPI, 1821084153, was assigned on September 22, 2005. Dr. Mahany graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1985. Dr. Mahany holds Michigan license BM009760.
- NPI
- 1821084153NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416855267
- NPI enumeration date
- September 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (517) 484-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian D. Mahany practices at Mid Michigan Internal Medicine in Lansing, Michigan
Dr. Mahany's primary practice is Mid Michigan Internal Medicine, at 2311 S Cedar St Suite B Suite B, Lansing, MI 48910-3191. The practice phone is (517) 484-7900.
- Mid Michigan Internal Medicine2311 S Cedar St Suite B Suite B, Lansing, MI 48910-3191Phone(517) 484-7900
Source: Dmand AI Affiliation Data
Dr. Brian D. Mahany is affiliated with 6 sites of care and 1 medical group
Dr. Mahany's primary practice is Mid Michigan Internal Medicine in Lansing, Michigan. Dr. Mahany is also affiliated with University of Michigan Health-Sparrow Lansing. The medical group on file is Mid Michigan Internal Medicine. Dmand AI also links Dr. Mahany to 4 more hospitals, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Brian D. Mahany's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahany practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mid Michigan Internal Medicine | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian D. Mahany is one of 4,804 internists in Michigan
Internal medicine is Dr. Mahany's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mahany is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Mahany
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. Brian D. Mahany billed Medicare for 995 services in 2024
CMS data shows 995 Medicare services from Dr. Mahany across 9 procedure codes in 2024, for 158 Medicare patients. Medicare paid $50,452 for them. Every service was in an office.
Dr. Mahany's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5152024: 4679%
- Other services
- 2023: 3052024: 2876%
- Tests and treatments
- 2023: 2122024: 17916%
- Lab and pathology
- 2023: 832024: 6225%
- Drugs given in the office
- 2023: 132024: 0100%
- Surgery
- 2023: 122024: 0100%
Dr. Mahany compared with the Michigan median for internists, 2024
- Dr. Mahany
- Michigan median
- Medicare services
- 995vs 4232.4 times
- Medicare patients
- 158vs 159Close to median
- Part D claims
- 8,358vs 31426.6 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Mahany's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mahany?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mahany and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian D. Mahany treated 158 Medicare patients in 2024, average age 76
CMS counts 158 Medicare patients who saw Dr. Mahany in 2024. The largest group is 65 to 74, with 73 patients. 72% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mahany's median patient age at 70, with 43% women.
Dr. Mahany's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mahany's Medicare patients by sex, 2024
- Women7447%
- Men8453%
Chronic conditions among Dr. Mahany's Medicare patients, 2024
- High cholesterol72%
- High blood pressure60%
- Arthritis46%
- Diabetes25%
- Ischemic heart disease23%
- Mood disorders18%
- Anxiety17%
- Depression16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahany's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian D. Mahany wrote 9,083 Medicare Part D claims in 2024
In 2024, Dr. Mahany wrote 9,083 Medicare Part D claims for 565 patients. 86% of them were for generic drugs. CMS names the drug for 8,358 of them, across 131 drugs with 11 or more claims each, at $970,520 in total drug cost. In 2023, CMS named 8,118 claims across 129 drugs.
Dr. Mahany's Part D claims by kind of drug, 2024
- Generic7,851 claims86%
- Brand-name1,199 claims13%
- Other33 claims0%
Dr. Mahany's 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. Mahany's Part D claims, 2024
- Opioids4%326 of 9,083 claims
- Antibiotics3%252 of 9,083 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8,1182024: 8,3583%
Drugs named by CMS: 131 in 2024, 129 in 2023.
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
Dr. Brian D. Mahany offers telehealth to Medicare patients
Dr. Mahany accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mahany as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Brian D. Mahany received $915 in industry payments from 2017 to 2025
CMS Open Payments shows 23 general payments to Dr. Mahany from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $460.
General payments to Dr. Mahany by program year, 2017 to 2025
Companies that paid Dr. Mahany the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian D. Mahany graduated from Des Moines University of Osteopathic Medicine and Health Sciences
Dr. Mahany graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian D. Mahany'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Brian D. Mahany
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. Brian D. Mahany's NPI number?
Dr. Brian D. Mahany's NPI number is 1821084153. It was assigned on September 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian D. Mahany?
Dr. Brian D. Mahany is an internist in Lansing, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Brian D. Mahany practice?
Dr. Mahany practices at 2311 S Cedar St Suite B Suite B, Lansing, MI 48910-3191. Dr. Mahany's primary practice is Mid Michigan Internal Medicine in Lansing, Michigan. Dmand AI also links Dr. Mahany to 4 hospitals.
What is Dr. Brian D. Mahany's office phone number?
The practice phone on file for Dr. Mahany is (517) 484-7900.
What is Dr. Brian D. Mahany's medical license number?
Dr. Mahany holds Michigan license BM009760.
Which hospitals is Dr. Brian D. Mahany affiliated with?
Dr. Mahany is affiliated with University of Michigan Health-Sparrow Lansing. Dmand AI links Dr. Mahany to 4 more hospitals.
What medical group is Dr. Brian D. Mahany part of?
Dr. Mahany is linked to Mid Michigan Internal Medicine.
Does Dr. Brian D. Mahany accept Medicare?
Yes. CMS data shows Dr. Mahany billed Medicare for 995 services in 2024, and Dr. Mahany accepts Medicare assignment.
Does Dr. Brian D. Mahany offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mahany as offering telehealth services.
How many Medicare patients does Dr. Brian D. Mahany see?
CMS counts 158 Medicare patients who saw Dr. Mahany in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Brian D. Mahany bill to Medicare?
In 2024, Dr. Mahany's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and medicare service (G0444).
Where did Dr. Brian D. Mahany go to medical school?
Dr. Mahany graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1985.
What drugs does Dr. Brian D. Mahany prescribe most?
In 2024 Medicare Part D data, Dr. Mahany's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Losartan Potassium.
Has Dr. Brian D. Mahany received payments from drug or device companies?
CMS Open Payments shows $915 in general payments to Dr. Mahany from 8 companies from 2017 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Brian D. Mahany been practicing?
Dr. Mahany graduated from medical school in 1985, 41 years ago.
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