MRS. CATHERINE C STACK CNM
NPI 1871551200
Advanced Practice Midwife in Williamsville, NY

Q: What is Catherine Stack's NPI number?

The NPI number for Catherine Stack is 1871551200. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Q: What is Catherine Stack's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Q: When was this NPI record last updated?

The NPPES record for Catherine Stack was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 May 03, 2006PECOS Enrolled

1540 MAPLE RD, WILLIAMSVILLE, NY 14221(716) 568-6570(716) 568-3012 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Mrs. Catherine C Stack Cnm NPPES

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

MRS. CATHERINE C STACK CNM (NPI 1871551200) is an individual advanced practice midwife in Williamsville, New York, licensed in New York (F000820) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871551200

Entity TypeIndividualFemale

Primary Taxonomy367A00000X

Provider Legal NameMRS. CATHERINE C STACKCredential: CNM

Location Address1540 MAPLE RDWilliamsville, NY 14221-3647

Mailing Address3970 River RdYoungstown, NY 14174-9738 · (716) 745-7357

Phone(716) 568-6570

Fax(716) 568-3012

Sole ProprietorNo

Enumeration DateMay 3, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1871551200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAdvanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367A00000X

License✔ Licensed in NY · F000820

Definition

Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.

1540 MAPLE RD, Williamsville, NY 14221

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Catherine C Stack Cnm 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 Reassignments

Medicare enrollment records show Catherine Stack reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kaleida Health

Same address

General Acute Care Hospital

1540 MAPLE RD
Williamsville, NY 14221

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

NPI 1053441907 (716) 568-3600

Niagara Falls Memorial Medical Center

18 mi

General Acute Care Hospital

621 10TH ST
Niagara Falls, NY 14302

Reassigned Medicare billing, New York enrollment
Also billed through NPI 1982659256 (New York)
156 clinicians in this Medicare group

NPI 1285717298 (716) 278-4000

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

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.

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.

DR. ANDERSON KA HO LAI MD

Internal Medicine

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 568-3514

COLLEEN KLOS

Internal Medicine

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 568-3514

BUFFALO HOSPITALIST SERVICES, P.C.

Internal Medicine

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 481-7384

SASHANK KAUSHIK MD

Hospitalist

1540 MAPLE RD, COGENT-HMG, MILLARD FILLMORE SUBURBAN HOSPITAL
WILLIAMSVILLE, NY 14221

Erie County (716) 568-3514

SIMRANJIT GILL D.O.

Emergency Medicine

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 568-3600

DR. JUAN JORGE BLANCO SA-C

Specialist/Technologist, Other (Surgical Assistant)

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 480-2996

FREDERICK C MORIN III MD

Pediatrics (Neonatal-Perinatal Medicine)

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 878-7662

KALEIDA HEALTH

General Acute Care Hospital

1540 MAPLE RD
WILLIAMSVILLE, NY 14221

Erie County (716) 568-3600

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 Catherine Stack's NPI number?

The NPI number for Catherine Stack is 1871551200. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Where is Catherine Stack located?

Catherine Stack practices at 1540 Maple Rd, Williamsville, NY 14221. The listed phone number is (716) 568-6570.

What is Catherine Stack's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Is Catherine Stack enrolled in Medicare?

Yes. Catherine Stack is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Catherine Stack's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Stack reassigns Medicare benefits to 2 organizations: Kaleida Health (Williamsville, NY) and Niagara Falls Memorial Medical Center (Niagara Falls, 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 Catherine Stack'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 Catherine Stack was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.