NPPES file of Aug 9, 2026

Carla Khalaf McStay, MD

Hospice and Palliative Medicine (Internal Medicine) Physician · Dallas, TX

Carla Khalaf McStay, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Dallas, Texas, and NPI 1396193983, issued on May 25, 2016. Check the license (Texas T0255, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396193983
Name
Carla Khalaf McStay
Credential
MD
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License numbers
T0255 TX
MD470242 PA
Self-reported in NPPES; status is on the state search
Practice location
6201 Harry Hines Blvd, Dallas, TX 75390
Phone
(214) 633-5555
Enumerated
May 25, 2016
Record last updated
Jul 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210629000180); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2016
Telehealth
Offers telehealth (CMS)
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 6201 Harry Hines Blvd

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

  1. Muhammad Abu ZarHospitalist Physician1487215943
  2. Sarwat Afghani, PAPhysician Assistant1679902621
  3. Aimaz Afrough, M.D.Hematology (Internal Medicine) Physician1477964518
  4. Murtaza Ahmed, MDHospitalist Physician1023750445
  5. Amisha Ahuja, M.D.Gastroenterology Physician1912431966
  6. Camli Al-Sadek, MDInternal Medicine Physician1770024945

Verify Carla Khalaf McStay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T0255
    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

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40% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024

447 Medicare Part D claims for 60 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 184 claims were for opioids.

  1. Carla Khalaf McStay447
  2. Specialty average741

Most prescribed

  1. Hydrocodone-Acetaminophen53 claims
  2. Oxycodone Hcl37 claims
  3. Gabapentin36 claims
  4. Hydromorphone Hcl28 claims
  5. Methadone Hcl23 claims
  6. Pregabalin22 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.

  1. Qualityout of 100 · 30% of the final score56.1
  2. Costout of 100 · 30%59.2
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. 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).

Carla Khalaf McStay among 169 hospice and palliative medicine (internal medicine) physician records in Texas

Carla Khalaf McStay, MD is one of 169 hospice and palliative medicine (internal medicine) physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 67% of them.

  • NPI issued2016 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated2016 · median 2012 among the 136 with a school on file
  • Record last updated2021 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Internal Medicine) Physician providers in Texas

There are 169 hospice and palliative medicine (internal medicine) physician records in Texas.

The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes

  1. Alexis Barina, MDDallas, TX 753901518300631
  2. Raaga Bean, DODallas, TX 753901639792989
  3. Sean Hutchinson, M.D.Dallas, TX 753901609260843
  4. Sharika Kumar, M.D.Dallas, TX 753901114450772
  5. Emily MarquezDallas, TX 753901285165779
  6. Rachel NaramoreDallas, TX 753901073046322
  7. Kelley Newcomer, MDDallas, TX 753901427060318
  8. Mary Paulk, MDDallas, TX 753901730148040

Common questions

What is Carla Khalaf McStay, MD's NPI number?

Carla Khalaf McStay, MD's National Provider Identifier (NPI) is 1396193983, issued on May 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Carla Khalaf McStay, MD located?

The NPPES record lists a practice address at 6201 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 633-5555. Providers update this record themselves, so call before visiting.

How can I verify Carla Khalaf McStay, MD's license?

NPPES lists Texas license number T0255, 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 Carla Khalaf McStay, MD prescribe under Medicare Part D?

In 2024, Carla Khalaf McStay, MD had 447 Medicare Part D claims for 60 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. Part D covers Medicare prescriptions only.

What is Carla Khalaf McStay, MD'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.