Katy Lease Lonergan Ii, MD - Medicare Cardiovascular Disease (cardiology) in Dallas, TX

Katy Lease Lonergan Ii, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Dallas, Texas. She went to Johns Hopkins University School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). She is a member of the group practice University Of Texas Southwestern Medical Center and her current practice location is 5323 Harry Hines Blvd, Dallas, Texas. You can reach out to her office (for appointments etc.) via phone at (214) 645-8000.

Katy Lease Lonergan Ii is licensed to practice in Texas (license number P4341) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144394461.

Contact Information

Katy Lease Lonergan Ii, MD
5323 Harry Hines Blvd,
Dallas, TX 75390-7201
(214) 645-8000
(214) 645-7269

Map and Direction




Physician's Profile

Full NameKaty Lease Lonergan Ii
GenderFemale
SpecialityCardiovascular Disease (cardiology)
Experience22 Years
Location5323 Harry Hines Blvd, Dallas, Texas
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Katy Lease Lonergan Ii attended and graduated from Johns Hopkins University School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1144394461
  • Provider Enumeration Date: 11/20/2006
  • Last Update Date: 11/28/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 6709946098
  • Enrollment ID: I20130206000310

Medical Identifiers

Medical identifiers for Katy Lease Lonergan Ii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144394461NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A86361 (California)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease A86361 (California)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease P4341 (Texas)Primary
207R00000XInternal Medicine P4341 (Texas)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ut Southwestern University Hospital - William P. Clements Jr.Dallas, TXHospital
Parkland Health & Hospital SystemDallas, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of Texas Southwestern Medical Center06481882502569

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Katy Lease Lonergan Ii allows following entities to bill medicare on her behalf.
Entity NameUniversity Of Texas Southwestern Medical Center At Dallas
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972579365
PECOS PAC ID: 0648188250
Enrollment ID: O20031106000792

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Katy Lease Lonergan Ii is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Katy Lease Lonergan Ii, MD
Po Box 845347,
Dallas, TX 75284-5347

Ph: (214) 645-8000
Katy Lease Lonergan Ii, MD
5323 Harry Hines Blvd,
Dallas, TX 75390-7201

Ph: (214) 645-8000

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.