NPPES file of Aug 9, 2026

Diana Leigh Diesen, MD

Pediatric Surgery Physician · Dallas, TX

Diana Leigh Diesen, MD is a pediatric surgery physician with a practice address in Dallas, Texas, and NPI 1457525230, issued on Apr 14, 2008. Check the license (Texas P1453, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457525230
Name
Diana Leigh Diesen
Credential
MD
Primary taxonomy
Pediatric Surgery Physician 2086S0120X
License numbers
P1453 TX
122296 NC
Self-reported in NPPES; status is on the state search
Practice location
5323 Harry Hines Blvd, Dallas, TX 75390
Phone
(919) 724-2224
Enumerated
Apr 14, 2008
Record last updated
Jun 17, 2025
Fax
(919) 681-8856
Medicare enrollment
Enrolled (PECOS I20130726000636); accepts Medicare assignment
Medical or professional school
University Of Virginia School Of Medicine, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5323 Harry Hines Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ali Abbas, MDStudent in an Organized Health Care Education/Training Program1447822507
  2. Laila Abbas, MDStudent in an Organized Health Care Education/Training Program1861132524
  3. Eileen Abbasi, CRNACertified Registered Nurse Anesthetist1588918981
  4. Mina Abbassi-Ghanavati, MDObstetrics & Gynecology Physician1154509610
  5. Abier Abdelnaby, M.D.Colon & Rectal Surgery Physician1831312503
  6. Ahmed AbdiStudent in an Organized Health Care Education/Training Program1952095184

Verify Diana Leigh Diesen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P1453
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. University OF Texas Southwestern Medical Center AT DallasPlano, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana Leigh Diesen among 128 pediatric surgery physician records in Texas

Diana Leigh Diesen, MD is one of 128 pediatric surgery physician records with a practice address in Texas. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.

  • NPI issued2008 · 58% of these records are older, 30% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 34% of these records are
  • Graduated2004 · median 2007 among the 43 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0120X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Surgery Physician providers in Texas

There are 128 pediatric surgery physician records in Texas.

The 8 pediatric surgery physician records with the nearest ZIP codes

  1. Dai Chung, M.D.Dallas, TX 753901902906159
  2. Frankie Fike, MDDallas, TX 753901285885350
  3. Lauren Gillory, M.D.Dallas, TX 753901871754135
  4. Hannah Piper, M.D.Dallas, TX 753901144494618
  5. Paulette Abbas, M.D.Dallas, TX 752511982997011
  6. Charles Black, MDDallas, TX 752511528049723
  7. James Davis, M.D.Dallas, TX 752511922261833
  8. Kevin Kadesky, M.D.Dallas, TX 752511295818631

Common questions

What is Diana Leigh Diesen, MD's NPI number?

Diana Leigh Diesen, MD's National Provider Identifier (NPI) is 1457525230, issued on Apr 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Diana Leigh Diesen, MD located?

The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (919) 724-2224. Providers update this record themselves, so call before visiting.

How can I verify Diana Leigh Diesen, MD's license?

NPPES lists Texas license number P1453, 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.

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.