GREGORY T TYMCHAK
NPI 1710961149
Radiology - Diagnostic Radiology in Williamsville, NY

Q: What is Gregory Tymchak's NPI number?

The NPI number for Gregory Tymchak is 1710961149. It was assigned to this individual provider in the NPPES registry on November 30, 2005.

Q: What is Gregory Tymchak's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Tymchak was last updated on September 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 30, 2005PECOS EnrolledAccepts Medicare Assignment

85.47/100

CMS Quality Rating

100 COLLEGE PKWY, SUITE 180, WILLIAMSVILLE, NY 14221(716) 636-1902 Get Directions Write a Review

NPPES record last updated: September 25, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Gregory T Tymchak NPPES

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

GREGORY T TYMCHAK (NPI 1710961149) is an individual diagnostic radiology provider in Williamsville, New York, licensed in New York (203797) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (1988).

NPPES Registry Identity

NPI1710961149

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameGREGORY T TYMCHAK

Location Address100 COLLEGE PKWY, SUITE 180Williamsville, NY 14221-6800

Mailing Address100 College Pkwy, Suite 180Williamsville, NY 14221-6800 · (716) 636-1902

Phone(716) 636-1902

Sole ProprietorNo

Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 1988

Enumeration DateNovember 30, 2005

Last NPPES UpdateSeptember 25, 2012

✔ NPI 1710961149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in NY · 203797

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

100 COLLEGE PKWY, Williamsville, NY 14221

Open in Google Maps ↗

Other Identifiers 5

Other00025517004Univera

Medicare UPING36837NY

Other2037976CRNY · Workers Compensation

Other000524750011Blue Shield Of Western Ny

Other1608981Independent Health

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory T Tymchak 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 ID5799771168

PECOS Enrollment IDI20040421001448

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.

Medicare Billing Reassignments

Medicare enrollment records show Gregory Tymchak reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University At Buffalo Neurosurgery, Inc.

1.2 mi

Neurological Surgery

40 GEORGE KARL BLVD
Williamsville, NY 14221

Reassigned Medicare billing, New York enrollment
61 clinicians in this Medicare group

NPI 1306896220 (716) 218-1000

Dent Neurologic Group LLP

3.4 mi

Neurology

3980 SHERIDAN DR, SUITE 200
Amherst, NY 14226

Reassigned Medicare billing, New York enrollment
85 clinicians in this Medicare group

NPI 1497850911 (716) 250-2000

Western New York Mri LLP

8.5 mi

Diagnostic Radiology

222 GENESEE ST
Buffalo, NY 14203

Reassigned Medicare billing, New York enrollment
12 clinicians in this Medicare group

NPI 1043255854 (716) 855-2866

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 20

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

1,800 services22 patients

Injection, gadobenate dimeglumine (multihance multipack), per ml A9578

Gadobenate Dimeglumine, or MultiHance, is a contrast agent used in MRI scans. It helps improve the clarity of images by highlighting certain body areas. Injected through a vein, it's generally well-tolerated and helps doctors make accurate diagnoses.

652 services75 patients

X-ray of entire middle and lower spine, minimum of 6 views 72084

This procedure involves taking a series of X-ray images, at least six, of your middle and lower spine. It helps to identify any abnormalities or issues such as fractures, infections, or tumors. You'll be asked to stay still while the machine captures the images. It's quick and painless.

183 services151 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

133 services95 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

130 services128 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

100 services93 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

64 services62 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

52 services44 patients

X-ray of upper spine, 4-5 views 72050

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

45 services45 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

37 services36 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

34 services30 patients

X-ray of entire middle and lower spine, 2-3 views 72082

An X-ray of your middle and lower spine involves capturing images of these areas to identify any abnormalities. The procedure involves taking 2-3 different views for a comprehensive understanding. It's non-invasive and usually painless, helping doctors diagnose conditions like fractures or infections.

30 services27 patients

X-ray of middle spine, 2 views 72070

An X-ray of the middle spine, or thoracic spine, involves capturing two different images of the area. This non-invasive procedure uses small amounts of radiation to visualize the bones and tissues in your back, helping to identify any abnormalities or injuries.

29 services22 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

27 services27 patients

Mri scan of middle spinal canal without contrast 72146

An MRI scan of the middle spinal canal without contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. This helps doctors identify any abnormalities or issues in your spinal canal. No dye is used in this procedure.

27 services27 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

26 services25 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

23 services22 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

23 services23 patients

Mri scan of leg joint without contrast 73721

An MRI scan of your leg joint is a non-invasive procedure that uses magnetic fields and radio waves to create detailed images of the structures within your leg. This helps doctors diagnose or monitor conditions without using contrast dye.

13 services13 patients

Ct scan of middle spine without contrast 72128

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

12 services11 patients

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

$84.93 typical visit price

range $54.87 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$68.57 typical visit price

range $17.54 – $136.14

Typical copayment $17.14 (range $4.38 – $34.03)

Most-billed visit code 99213

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.47/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

74.9

Promoting Interoperability

Improvement Activities

Cost

99.99

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%191 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

WALTER BROWN PT

Physical Therapist

100 COLLEGE PKWY, SUITE 100
WILLIAMSVILLE, NY 14221

Erie County (716) 626-0093

MICHAEL MASSARO PT

Physical Therapist

100 COLLEGE PKWY, SUITE 100
WILLIAMSVILLE, NY 14221

Erie County (716) 626-0093

GREGORY D GROTH RPAC

Physician Assistant

100 COLLEGE PKWY, SUITE 220
WILLIAMSVILLE, NY 14221

Erie County (716) 626-9900

ANNALISE HOFFMAN

Speech-Language Pathologist

100 COLLEGE PKWY
WILLIAMSVILLE, NY 14221

Erie County (716) 871-9915

MICHAEL S CICCHETTI MD

Physical Medicine & Rehabilitation

100 COLLEGE PKWY, SUITE 100
WILLIAMSVILLE, NY 14221

Erie County (434) 924-2047

RICHARD D THOMAS MD

Radiology (Diagnostic Radiology)

100 COLLEGE PKWY, SUITE 180
WILLIAMSVILLE, NY 14221

Erie County (716) 636-1902

AMY P EARLY MD

Internal Medicine (Medical Oncology)

100 COLLEGE PKWY, SUITE 290
WILLIAMSVILLE, NY 14221

Erie County (716) 845-8711

PHILIP JARED OPPENHEIMER PT

Physical Therapist

100 COLLEGE PKWY, STE 100
WILLIAMSVILLE, NY 14221

Erie County (716) 626-0093

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 Gregory Tymchak's NPI number?

The NPI number for Gregory Tymchak is 1710961149. It was assigned to this individual provider in the NPPES registry on November 30, 2005.

Where is Gregory Tymchak located?

Gregory Tymchak practices at 100 College Pkwy Suite 180, Williamsville, NY 14221. The listed phone number is (716) 636-1902.

What is Gregory Tymchak's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Gregory Tymchak enrolled in Medicare?

Yes. Gregory Tymchak 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.

Which organizations bill Medicare for Gregory Tymchak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Tymchak reassigns Medicare benefits to 3 organizations: University At Buffalo Neurosurgery, Inc. (Williamsville, NY), Dent Neurologic Group LLP (Amherst, NY) and Western New York Mri LLP (Buffalo, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Tymchak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Tymchak was last updated on September 25, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.