DR. STANLEY R MICHALSKI M.D.
NPI 1386649721
Internal Medicine - Rheumatology in Williamsville, NY

Active since June 14, 2005PECOS Enrolled
77.25/100
CMS Quality Rating
400 INTERNATIONAL DR., WILLIAMSVILLE, NY 14221(716) 631-3555(716) 631-9525 Get Directions Write a Review

NPPES record last updated: August 19, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Stanley R Michalski M.d. NPPES

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

DR. STANLEY R MICHALSKI M.D. (NPI 1386649721) is an individual rheumatology provider in Williamsville, New York, licensed in New York (108355) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1386649721
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. STANLEY R MICHALSKICredential: M.D.
Location Address400 INTERNATIONAL DR.Williamsville, NY 14221
Mailing Address400 International Dr.Williamsville, NY 14221 · (716) 631-3555 · Fax (716) 631-9525
Fax(716) 631-9525
Sole ProprietorYes
Enumeration DateJune 14, 2005
Last NPPES UpdateAugust 19, 2019
✔ NPI 1386649721 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in NY · 108355
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
400 INTERNATIONAL DR., Williamsville, NY 14221

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stanley R Michalski M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Stanley Michalski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Neurological Surgery
400 INTERNATIONAL DRIVE
Williamsville, NY 14221
  • Reassigned Medicare billing, New York enrollment
  • 59 clinicians in this Medicare group

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 3

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.

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.
159 services76 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.
36 services30 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
17 services13 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
$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.

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.

77.25/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.02
Promoting Interoperability61
Improvement Activities40
Cost78.98

Other Providers at the Same Location NPPES 10

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

Family Medicine
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Internal Medicine
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Psychiatry & Neurology (Neurology)
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Neurological Surgery
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Internal Medicine
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Internal Medicine
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Family Medicine
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221
Chiropractor
400 INTERNATIONAL DR.
WILLIAMSVILLE, NY 14221

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 Stanley Michalski's NPI number?

The NPI number for Stanley Michalski is 1386649721. It was assigned to this individual provider in the NPPES registry on June 14, 2005.

Where is Stanley Michalski located?

Stanley Michalski practices at 400 International Dr., Williamsville, NY 14221. The listed phone number is (716) 631-3555.

What is Stanley Michalski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Stanley Michalski enrolled in Medicare?

Yes. Stanley Michalski is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stanley Michalski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stanley Michalski reassigns Medicare benefits to Brain & Spine Medical Services PLLC (Williamsville, NY). The 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 Stanley Michalski'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 Stanley Michalski was last updated on August 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.