What is Kathryn Stack's specialty?

Kathryn Stack (NPI 1326081969) is a Medicare-billing provider whose primary specialty is Anesthesiology in Old Lyme, CT.

Where does Kathryn Stack practice?

Kathryn Stack practices in Old Lyme, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1326081969.

How much does Medicare pay Kathryn Stack?

Kathryn Stack (NPI 1326081969) received approximately $26K in total Medicare Part B payments, serving 282 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1326081969

Kathryn StackMD

AnesthesiologyOld Lyme, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

205

Unique beneficiaries

—

Total services

209

Distinct HCPCS

Medicare payment

$17K

Peer benchmark

Total Medicare services vs. 590 Anesthesiology providers in CT — top quintile (cohort median 201).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

86.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 410013

Hospital

REFERRAL NETWORK

Where Kathryn Stack's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 8 inbound referrers · 28 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Adriana Hermida Geriatric Psychiatry · Jonesboro, GA	40	166
HEAD, CLARENCE	36	99
Gerard Mcgorisk Internal Medicine · Atlanta, GA	26	35
CRAWFORD LONG HOSPITAL	15	20
John Roback Pathology · Atlanta, GA	14	23
Laboratory Corporation Of America Holdings Clinical Laboratory · Birmingham, AL	12	16
Brent Little Diagnostic Radiology · Jacksonville, FL	11	11
Larry Tune Psychiatry · Atlanta, GA	11	49

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
EMORY UNIVERSITY	83	159
EMORY UNIVERSITY	49	264
William Mcdonald Psychiatry · Atlanta, GA	46	248
Benjamin Krohn Anesthesiology Assistant · Atlanta, GA	43	117
HEAD, CLARENCE	40	137
Ray Magill Anesthesiology Assistant · Atlanta, GA	39	73
Patricio Riva Posse Psychiatry · Atlanta, GA	37	155
William Squires Anesthesiology Assistant · Atlanta, GA	37	71
Adriana Hermida Geriatric Psychiatry · Jonesboro, GA	29	133
Sasikanth Duggirala Anesthesiology Assistant · Marietta, GA	29	50
Ndidi Drew Anesthesiology Assistant · Lawrenceville, GA	28	60
Steven Helfman Anesthesiology · Atlanta, GA	26	43

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events