William Pennock Laird, MD
Pediatric Cardiology Physician · Dallas, TX
William Pennock Laird, MD is a pediatric cardiology physician with a practice address in Dallas, Texas, and NPI 1306834023, issued on Oct 6, 2005. Check the license (Texas K3599, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Pennock Laird
- Credential
- MD
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- K3599 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12201 Merit Dr Ste 550, Dallas, TX 75251
- Phone
- (972) 331-9700
- Enumerated
- Oct 6, 2005
- Record last updated
- Aug 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (972) 331-9833
- Medicaid ID
- 157506003 TX
- Medicare enrollment
- Enrolled (PECOS I20120406000115); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1995
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 325 in Texas → Look up another NPI →
Also registered at 12201 Merit Dr Ste 550
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pooja Desai, M.D.Pediatric Cardiology Physician1093945172
- Alan Sing, M.D.Pediatric Cardiology Physician1679885727
- Amit Verma, M.D.Pediatric Cardiology Physician1548450216
Verify William Pennock Laird in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K3599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average pediatric cardiology physician in 2024
35 Medicare Part D claims, against an average of 74 among the 518 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Dallas Physician Medical Services For Children IncMansfield, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Pennock Laird among 325 pediatric cardiology physician records in Texas
William Pennock Laird, MD is one of 325 pediatric cardiology physician records with a practice address in Texas. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1995 · median 2004 among the 163 with a school on file
- Record last updated2018 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Texas
There are 325 pediatric cardiology physician records in Texas.
All 325 in Texas → Every provider in Dallas → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Pooja Desai, M.D.Dallas, TX 752511093945172
- Alan Sing, M.D.Dallas, TX 752511679885727
- Amit Verma, M.D.Dallas, TX 752511548450216
- Reenu RoseDallas, TX 752461881663342
- Nathanya Baez Hernandez, MDDallas, TX 752351639425622
- Ramya Deepthi Billa, M.D.Dallas, TX 752351932540622
- Ryan BishopDallas, TX 752351053844563
- Jordan Ezekian, MDDallas, TX 752351891106142
Common questions
What is William Pennock Laird, MD's NPI number?
William Pennock Laird, MD's National Provider Identifier (NPI) is 1306834023, issued on Oct 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Pennock Laird, MD located?
The NPPES record lists a practice address at 12201 Merit Dr Ste 550, Dallas, TX, 75251. Phone: (972) 331-9700. Providers update this record themselves, so call before visiting.
How can I verify William Pennock Laird, MD's license?
NPPES lists Texas license number K3599, 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 William Pennock Laird, MD prescribe under Medicare Part D?
In 2024, William Pennock Laird, MD had 35 Medicare Part D claims; the average among pediatric cardiology physician prescribers was 74. Part D covers Medicare prescriptions only.
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.