Dr. Brian E. Lahmann, MD
- Medicare services, 2024
- 908
- Medicare patients, 2026
- 242
- Part D claims, 2026
- 485
- Hospital affiliations
- 1
- Industry payments
- $1,407
- Practice address
- 1900 Silver Cross Blvd, New Lenox, IL 60451
- Practice phone
- Call (815) 300-1100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lahmann'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 E. Lahmann is a general surgeon in New Lenox, Illinois
Dr. Lahmann practices at Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers.
Dr. Lahmann's NPI, 1346381837, was assigned on February 9, 2007. Dr. Lahmann graduated from University of Cincinnati College of Medicine in 1998. Dr. Lahmann holds Illinois license 036111197.
- NPI
- 1346381837NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042287716
- NPI enumeration date
- February 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (815) 300-1100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian E. Lahmann practices at Silver Cross Hospital in New Lenox, Illinois
Dr. Lahmann's primary practice is Silver Cross Hospital, at 1900 Silver Cross Blvd, New Lenox, IL 60451 in Will County. The practice phone is (815) 300-1100.
- Silver Cross Hospital1900 Silver Cross Blvd, New Lenox, IL 60451 · Will CountyPhone(815) 300-1100
Source: Dmand AI Affiliation Data
Dr. Brian E. Lahmann is affiliated with 2 sites of care and 1 medical group
Dr. Lahmann's primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. The medical group on file is BMI Surgery. Dmand AI also links Dr. Lahmann to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian E. Lahmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lahmann practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Silver Cross Hospital | Available with a free account |
| +1 more affiliated site | 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 Silver Cross Hospital & Medical Centers and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Brian E. Lahmann is one of 1,217 general surgeons in Illinois
Surgery is Dr. Lahmann's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Lahmann is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Lahmann
Counts of general surgeons 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 E. Lahmann billed Medicare for 908 services in 2024
CMS data shows 908 Medicare services from Dr. Lahmann across 8 procedure codes in 2024, for 242 Medicare patients. Medicare paid $80,606 for them. Every service was in an office.
Dr. Lahmann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4332024: 74472%
- Imaging
- 2023: 1432024: 1337%
- Surgery
- 2023: 642024: 3152%
Dr. Lahmann compared with the Illinois median for general surgeons, 2024
- Dr. Lahmann
- Illinois median
- Medicare services
- 908vs 1944.7 times
- Medicare patients
- 242vs 14468% above
- Part D claims
- 418vs 2814.9 times
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Lahmann'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lahmann and other general surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian E. Lahmann treated 242 Medicare patients in 2026, average age 66
CMS counts 242 Medicare patients who saw Dr. Lahmann in 2026. The largest group is 65 to 74, with 144 patients. 75% of them have arthritis, and 75% have high blood pressure. 18% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lahmann's median patient age at 54, with 81% women.
Dr. Lahmann's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Lahmann's Medicare patients by sex, 2026
- Women18175%
- Men6125%
Chronic conditions among Dr. Lahmann's Medicare patients, 2026
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety43%
- Mood disorders42%
- Depression39%
- Diabetes34%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lahmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women81%
- Men18%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Brian E. Lahmann wrote 485 Medicare Part D claims in 2026
In 2026, Dr. Lahmann wrote 485 Medicare Part D claims for 110 patients. 77% of them were for generic drugs. CMS names the drug for 418 of them, across 13 drugs with 11 or more claims each, at $87,911 in total drug cost. In 2023, CMS named 317 claims across 12 drugs.
Dr. Lahmann's Part D claims by kind of drug, 2026
- Generic374 claims77%
- Brand-name and other111 claims23%
Dr. Lahmann'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. Lahmann's Part D claims, 2026
- Opioids7%34 of 485 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: 3172024: 41832%
Drugs named by CMS: 13 in 2024, 12 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), 2026 data
Dr. Brian E. Lahmann offers telehealth to Medicare patients
Dr. Lahmann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lahmann as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 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 E. Lahmann received $1,407 in industry payments from 2017 to 2025
CMS Open Payments shows 23 general payments to Dr. Lahmann from 7 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 97% of the total. W. L. Gore & Associates, Inc. paid the most, $594.
General payments to Dr. Lahmann by program year, 2017 to 2025
General payments to Dr. Lahmann by kind, 2017 to 2025
- Food and beverage$1,36697%
- Education$322%
- Gifts$91%
Companies that paid Dr. Lahmann 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 E. Lahmann graduated from University of Cincinnati College of Medicine
Dr. Lahmann graduated from University of Cincinnati College of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian E. Lahmann'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 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 E. Lahmann
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 E. Lahmann's NPI number?
Dr. Brian E. Lahmann's NPI number is 1346381837. It was assigned on February 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian E. Lahmann?
Dr. Brian E. Lahmann is a general surgeon in New Lenox, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Brian E. Lahmann practice?
Dr. Lahmann practices at 1900 Silver Cross Blvd, New Lenox, IL 60451. Dr. Lahmann's primary practice is Silver Cross Hospital in New Lenox, Illinois, part of Silver Cross Hospital & Medical Centers. Dmand AI also links Dr. Lahmann to 1 group practice or clinic, and a free account names each one.
What is Dr. Brian E. Lahmann's office phone number?
The practice phone on file for Dr. Lahmann is (815) 300-1100. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Brian E. Lahmann's email address?
Dmand AI checks professional and personal email addresses for Dr. Lahmann through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Brian E. Lahmann's medical license number?
Dr. Lahmann holds Illinois license 036111197.
Which hospitals is Dr. Brian E. Lahmann affiliated with?
Dr. Lahmann practices at Silver Cross Hospital in New Lenox, Illinois.
What medical group is Dr. Brian E. Lahmann part of?
Dr. Lahmann is linked to BMI Surgery.
Who does Dr. Brian E. Lahmann practice with?
Dmand AI links 3 HCPs to Dr. Lahmann's primary medical group, 1 of them general surgeon. A free account lists them, with verified contacts.
Does Dr. Brian E. Lahmann accept Medicare?
Yes. CMS data shows Dr. Lahmann billed Medicare for 908 services in 2024, and Dr. Lahmann accepts Medicare assignment.
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Does Dr. Brian E. Lahmann offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lahmann as offering telehealth services.
How many Medicare patients does Dr. Brian E. Lahmann see?
CMS counts 242 Medicare patients who saw Dr. Lahmann in 2026, with an average age of 66.
What services does Dr. Brian E. Lahmann bill to Medicare?
In 2024, Dr. Lahmann's most billed Medicare services were office visit, established patient (99214), diagnostic imaging (74240) and office visit, established patient (99211).
Where did Dr. Brian E. Lahmann go to medical school?
Dr. Lahmann graduated from University of Cincinnati College of Medicine in 1998.
What drugs does Dr. Brian E. Lahmann prescribe most?
In 2024 Medicare Part D data, Dr. Lahmann's most prescribed drugs by claims were Pantoprazole Sodium, Ozempic and Famotidine.
Has Dr. Brian E. Lahmann received payments from drug or device companies?
CMS Open Payments shows $1,407 in general payments to Dr. Lahmann from 7 companies from 2017 to 2025. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. Brian E. Lahmann been practicing?
Dr. Lahmann graduated from medical school in 1998, 28 years ago.
What EHR does Dr. Brian E. Lahmann's practice use?
Dmand AI tracks the EHR system at Silver Cross Hospital and at 1 more affiliated site. The vendor and product are available with a free Dmand AI account.
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