NPPES file of Aug 9, 2026

Sona Nambiar, M.D

Internal Medicine Physician · Dallas, TX

Sona Nambiar, M.D is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1083892434, issued on Feb 7, 2008. Check the license (Texas N3205, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083892434
Name
Sona Nambiar
Credential
M.D
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
N3205 TX
Self-reported in NPPES; status is on the state search
Practice location
PO Box 822368, Dallas, TX 75382
Phone
(469) 400-3501
Enumerated
Feb 7, 2008
Record last updated
Aug 4, 2024
Fax
(877) 738-0404
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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8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →

Also registered at PO Box 822368

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

  1. Rui Benevides, M.D.Internal Medicine Physician1093973216
  2. Alexa Weisbein, MDEmergency Medicine Physician1649857590

Verify Sona Nambiar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N3205    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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

30 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Sona Nambiar30
  2. Specialty average3,176

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.

Sona Nambiar among 9,175 internal medicine physician records in Texas

Sona Nambiar, M.D is one of 9,175 internal 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 2008, is newer than 50% of them.

  • NPI issued2008 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

956 internal medicine physician records list a practice address in Dallas

They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.

All 9,175 in Texas → Every provider in Dallas → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Rui Benevides, M.D.Dallas, TX 753821093973216
  2. David Balis, MDDallas, TX 753901689633927
  3. Arlene Betancourt, M.D.Dallas, TX 753901386678712
  4. Cecilier Chen, MDDallas, TX 753901053348847
  5. Roberto De La Cruz, M.D.Dallas, TX 753901457381741
  6. Shelly Heidelbaugh, MDDallas, TX 753901972545747
  7. Imran Khawaja, MDDallas, TX 753901679545164
  8. Charles Pak, MDDallas, TX 753901477514511

Common questions

What is Sona Nambiar, M.D's NPI number?

Sona Nambiar, M.D's National Provider Identifier (NPI) is 1083892434, issued on Feb 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Sona Nambiar, M.D located?

The NPPES record lists a practice address at PO Box 822368, Dallas, TX, 75382. Phone: (469) 400-3501. Providers update this record themselves, so call before visiting.

How can I verify Sona Nambiar, M.D's license?

NPPES lists Texas license number N3205, 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 Sona Nambiar, M.D prescribe under Medicare Part D?

In 2024, Sona Nambiar, M.D had 30 Medicare Part D claims for 11 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), 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.