Katy Lease Lonergan, M.D.
Cardiovascular Disease Physician · Dallas, TX
Katy Lease Lonergan, M.D. is a cardiovascular disease physician with a practice address in Dallas, Texas, and NPI 1144394461, issued on Nov 20, 2006. Check the license (Texas P4341, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katy Lease Lonergan
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- P4341 TX
A86361 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd, Dallas, TX 75390
- Phone
- (214) 645-8000
- Enumerated
- Nov 20, 2006
- Record last updated
- Nov 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (214) 645-7269
- Medicare enrollment
- Enrolled (PECOS I20130206000310); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,603 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katy Lease Lonergan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P4341Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,143 Medicare Part D claims for 299 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Atorvastatin Calcium314 claims
- Eliquis198 claims
- Amlodipine Besylate169 claims
- Losartan Potassium158 claims
- Metoprolol Succinate151 claims
- Carvedilol128 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $152.80
1 payment: food and beverage; the largest payer was Edwards Lifesciences Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Texas Southwestern Medical Center AT DallasDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katy Lease Lonergan among 1,603 cardiovascular disease physician records in Texas
Katy Lease Lonergan, M.D. is one of 1,603 cardiovascular disease physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 20% of them.
- NPI issued2006 · 20% of these records are older, 42% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2002 · median 1998 among the 1,219 with a school on file
- Record last updated2012 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Texas
There are 1,603 cardiovascular disease physician records in Texas.
All 1,603 in Texas → Every provider in Dallas → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Laura Collins, MDDallas, TX 753901467417279
- James De Lemos, MDDallas, TX 753901972566602
- Joseph Garcia, MD PHDDallas, TX 753901902861727
- Joseph Hill, MD PHDDallas, TX 753901477518280
- Leslie Hillis, MDDallas, TX 753901508825621
- Jose Joglar, MDDallas, TX 753901720043540
- Amit Khera, MD MSCDallas, TX 753901255394987
- Benjamin Levine, MDDallas, TX 753901376508192
Common questions
What is Katy Lease Lonergan, M.D.'s NPI number?
Katy Lease Lonergan, M.D.'s National Provider Identifier (NPI) is 1144394461, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katy Lease Lonergan, M.D. located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 645-8000. Providers update this record themselves, so call before visiting.
How can I verify Katy Lease Lonergan, M.D.'s license?
NPPES lists Texas license number P4341, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katy Lease Lonergan, M.D. prescribe under Medicare Part D?
In 2024, Katy Lease Lonergan, M.D. had 2,143 Medicare Part D claims for 299 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Katy Lease Lonergan, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.