NPPES file of Aug 9, 2026

Linda Siy, MD

Family Medicine Physician · Euless, TX

Linda Siy, MD is a family medicine physician with a practice address in Euless, Texas, and NPI 1689635765, issued on Mar 29, 2006. Check the license (Texas H9571, 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
1689635765
Name
Linda Siy
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
H9571 TX
Self-reported in NPPES; status is on the state search
Practice location
3200 W Euless Blvd, Euless, TX 76040
Phone
(817) 702-1100
Enumerated
Mar 29, 2006
Record last updated
Nov 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(817) 702-6493
Medicaid ID
138524713 TX
Medicare enrollment
Enrolled (PECOS I20050915000812); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 1990
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 3200 W Euless Blvd

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

  1. Ghazanfar Ali, M.D.Family Medicine Physician1063852655
  2. Helene Alphonso, DOPsychiatry Physician1972779734
  3. Justin Ford, O.D.Optometrist1932540978
  4. Navneet Gill, MDInternal Medicine Physician1669456414
  5. Lakshmi Gujju, MDFamily Medicine Physician1497974026
  6. Timothy Henry, MDFamily Medicine Physician1649555061

Verify Linda Siy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license H9571
    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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41% fewer Medicare Part D claims than the average family medicine physician in 2024

2,091 Medicare Part D claims for 105 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 156 claims were for opioids.

  1. Linda Siy2,091
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium129 claims
  2. Hydrocodone-Acetaminophen86 claims
  3. Levothyroxine Sodium76 claims
  4. Pantoprazole Sodium65 claims
  5. Albuterol Sulfate Hfa62 claims
  6. Amlodipine Besylate56 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): 92 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 score89.8
  2. Costout of 100 · 30%56.8
  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).

Industry payments in 2024: $238.73

3 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Linda Siy$238.73
  2. Specialty average$902.55

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

  1. Acclaim Physician Group IncFort Worth, TX

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

Linda Siy among 11,119 family medicine physician records in Texas

Linda Siy, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1990 · median 2004 among the 7,095 with a school on file
  • Record last updated2018 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 family medicine physician records list a practice address in Euless

They are 11 of the 387 NPPES records with a practice address in Euless, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Ghazanfar Ali, M.D.Euless, TX 760401063852655
  2. Lakshmi Gujju, MDEuless, TX 760401497974026
  3. Randall Hayes, DOEuless, TX 760401982640942
  4. Timothy Henry, MDEuless, TX 760401649555061
  5. Daniel Lum, MDEuless, TX 760401285603167
  6. Francis Mascarenhas, MDEuless, TX 760401043326093
  7. Joann Bishop, DOEuless, TX 760391265513709
  8. Vancy Bridges, M.D.Euless, TX 760391982644548

Common questions

What is Linda Siy, MD's NPI number?

Linda Siy, MD's National Provider Identifier (NPI) is 1689635765, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Linda Siy, MD located?

The NPPES record lists a practice address at 3200 W Euless Blvd, Euless, TX, 76040. Phone: (817) 702-1100. Providers update this record themselves, so call before visiting.

How can I verify Linda Siy, MD's license?

NPPES lists Texas license number H9571, 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 Linda Siy, MD prescribe under Medicare Part D?

In 2024, Linda Siy, MD had 2,091 Medicare Part D claims for 105 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Linda Siy, MD's MIPS final score?

The 2023 MIPS final score is 92 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.