Registry data as of Aug 27, 2026

Kausik Roy, MD

Internal Medicine Physician · Cedar Park, TX

Kausik Roy, MD is an internal medicine physician with a practice address in Cedar Park, Texas, and NPI 1538377478, issued on May 21, 2007. Check the license (Texas N5983, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1538377478
Name
Kausik Roy
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
N5983 TX
57010379 OH
Self-reported in NPPES; status is on the state search
Practice location
1401 Medical Pkwy, Bldg B #220, Cedar Park, TX 78613
Phone
(512) 260-1581
Enumerated
May 21, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1401 Medical Pkwy, Bldg B #220

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

  1. Mahmuda Begum, MDInternal Medicine Physician1598956773

Verify Kausik Roy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N5983
    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.

62% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,191 Medicare Part D claims for 76 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 11 claims were for opioids.

  1. Kausik Roy1,191
  2. Specialty average3,176

Most prescribed

  1. Eliquis66 claims
  2. Atorvastatin Calcium46 claims
  3. Potassium Chloride46 claims
  4. Metoprolol Tartrate40 claims
  5. Levothyroxine Sodium38 claims
  6. Donepezil Hcl36 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.

32 internal medicine physician records list a practice address in Cedar Park

They are 32 of the 1,650 NPPES records with a practice address in Cedar Park, and 9,175 internal medicine physician records in Texas.

Other internal medicine physician records in Texas

  1. Muhammad A. Sattar, MDDallas, TX1760465553
  2. Gayatri Aaluri, MDGalveston, TX1821928508
  3. Anunaya AashishDenton, TX1134246374
  4. Queenie Ann Abad, M.D.San Antonio, TX1174979785
  5. Fuad Abaleka, M.DLubbock, TX1861925596
  6. Carol Abalihi, M.D.El Paso, TX1326136243
  7. Oliverio Abarca Guzman, MDHarlingen, TX1346972940
  8. Obinna Abaribe, M.DMansfield, TX1457704355
  9. Enyinnaya Abarikwu, MDTyler, TX1174788178
  10. Sulaiman Abawi, D.O.Frisco, TX1780845255

Common questions

What is Kausik Roy, MD's NPI number?

Kausik Roy, MD's National Provider Identifier (NPI) is 1538377478, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kausik Roy, MD located?

The NPPES record lists a practice address at 1401 Medical Pkwy, Bldg B #220, Cedar Park, TX, 78613. Phone: (512) 260-1581. Providers update this record themselves, so call before visiting.

How can I verify Kausik Roy, MD's license?

NPPES lists Texas license number N5983, 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 Kausik Roy, MD prescribe under Medicare Part D?

In 2024, Kausik Roy, MD had 1,191 Medicare Part D claims for 76 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.