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Edit this profileAt a glance
- 400 International Dr., Williamsville, NY 14221
About Dr. Karaszewski
Brian M. Karaszewski, M.D. is a healthcare provider in Williamsville, NY specializing in internal medicine. Brian trained at State University of New York at Buffalo School of Medicine, graduating in 1997. According to Medicare claims data, Brian cared for 252 Medicare patients across 528 services. The services billed most often include management using the results of remote vital sign monitoring per calendar month, first 20 minutes, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, and remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days. This provider record is associated with NPI 1255478376.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (716) 631-3555
- Email not available
Practice Locations
400 INTERNATIONAL DR.
Williamsville, NY 14221
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
- Heart disease
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
- Urinalysis
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
528 services · 252 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
21 | Less often than most peers in Internal Medicine |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
183 | As often as other peers in Internal Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
142 | More often than most peers in Internal Medicine |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
111 | As often as other peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
71 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other internists in Williamsville 7
Same specialty, same city.
Trained at State University of New York at Buffalo School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at State University of New York at Buffalo School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in NY who bill this service to Medicare most often.
Common questions
What is Brian M. Karaszewski's specialty?
Brian M. Karaszewski is an internist in Williamsville, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Brian M. Karaszewski?
Brian M. Karaszewski is listed at 400 International Dr., Williamsville, NY 14221. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Brian M. Karaszewski?
The number on file is (716) 631-3555. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Brian M. Karaszewski's NPI number?
Brian M. Karaszewski's National Provider Identifier is 1255478376. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Brian M. Karaszewski's education?
Brian M. Karaszewski attended State University of New York at Buffalo School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Brian M. Karaszewski been practicing?
Brian M. Karaszewski has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What is Brian M. Karaszewski known for?
According to Medicare billing data, Brian M. Karaszewski provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Brian M. Karaszewski confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Brian M. Karaszewski. If this is you, claiming it is free.
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