DR. BENJAMIN AARON ZWIERZCHOWSKI MD, MS
NPI 1811494842
Internal Medicine in Williamsville, NY

Q: What is Benjamin Zwierzchowski's NPI number?

The NPI number for Benjamin Zwierzchowski is 1811494842. It was assigned to this individual provider in the NPPES registry on April 6, 2018.

Q: What is Benjamin Zwierzchowski's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since April 06, 2018PECOS EnrolledAccepts Medicare Assignment

325 ESSJAY, WILLIAMSVILLE, NY 14221(716) 656-4459(716) 250-5923 Get Directions Write a Review

NPPES record last updated: December 20, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Dec 20, 2021, Jul 6, 2021 (2 updates tracked since 2021).

On this page

About Dr. Benjamin Aaron Zwierzchowski Md, Ms NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BENJAMIN AARON ZWIERZCHOWSKI MD, MS (NPI 1811494842) is an individual internal medicine provider in Williamsville, New York, licensed in New York (306710) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of State University Of New York At Buffalo School Of Medicine (2018).

NPPES Registry Identity

NPI1811494842

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. BENJAMIN AARON ZWIERZCHOWSKICredential: MD, MS

Location Address325 ESSJAYWilliamsville, NY 14221-1422

Mailing Address425 Essjay Suite 170Williamsville, NY 14221-1243 · (716) 630-1219

Phone(716) 656-4459

Fax(716) 250-5923

Sole ProprietorNo

Medical School CMSState University Of New York At Buffalo School Of MedicineGraduated 2018

Enumeration DateApril 6, 2018

Last NPPES UpdateDecember 20, 20212 updates tracked since enumeration

NPPES CertifiedDecember 20, 2021

✔ NPI 1811494842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 306710

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

325 ESSJAY, Williamsville, NY 14221

Open in Google Maps ↗

Other Names 1

Other Name (5)Mr. Benjamin Aaron Zwierzchowski Md, Ms

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Benjamin Aaron Zwierzchowski Md, Ms is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1355688706

PECOS Enrollment IDI20210127000861

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

96 services96 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

75 services52 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

69 services56 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

55 services43 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

55 services31 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

54 services41 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

42 services31 patients

Urine microalbumin (protein) level 82043

The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.

31 services23 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

31 services23 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

26 services20 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

23 services23 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

22 services20 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

20 services20 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

16 services15 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

13 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Kaleida Health

Acute Care Hospitals · Buffalo, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330005

Location100 High StreetBuffalo, NY 14210 · Erie County

Emergency services Birthing friendly

Sisters Of Charity Hospital

Acute Care Hospitals · Buffalo, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330078

Location2157 Main StreetBuffalo, NY 14214 · Erie County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14221 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.87 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.08 typical visit price

range $17.54 – $136.14

Typical copayment $24.27 (range $4.38 – $34.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

3 suppliers14 claims28 services$5.65 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BUFFALO MEDICAL GROUP, PC

Clinic/Center

325 ESSJAY
WILLIAMSVILLE, NY 14221

Erie County (716) 630-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Benjamin Zwierzchowski's NPI number?

The NPI number for Benjamin Zwierzchowski is 1811494842. It was assigned to this individual provider in the NPPES registry on April 6, 2018.

Where is Benjamin Zwierzchowski located?

Benjamin Zwierzchowski practices at 325 Essjay, Williamsville, NY 14221. The listed phone number is (716) 656-4459.

What is Benjamin Zwierzchowski's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Benjamin Zwierzchowski enrolled in Medicare?

Yes. Benjamin Zwierzchowski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Benjamin Zwierzchowski affiliated with any hospitals?

According to CMS data, Benjamin Zwierzchowski is affiliated with Kaleida Health and Sisters Of Charity Hospital.

When was this NPI record last updated?

The NPPES record for Benjamin Zwierzchowski was last updated on December 20, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.