NPPES file of Aug 9, 2026

Lindsay Kay Sonstein, MD

Internal Medicine Physician · Galveston, TX

Lindsay Kay Sonstein, MD is an internal medicine physician with a practice address in Galveston, Texas, and NPI 1497959068, issued on Jun 14, 2007. Check the license (Texas M8037, 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
1497959068
Name
Lindsay Kay Sonstein
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
M8037 TX
Self-reported in NPPES; status is on the state search
Practice location
400 Harborside Dr, Galveston, TX 77555
Phone
(409) 747-1883
Enumerated
Jun 14, 2007
Record last updated
Aug 27, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(409) 747-8579
Medicare enrollment
Enrolled (PECOS I20080606000270); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2005
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 400 Harborside Dr

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

  1. Maegan Anthony, LPCMental Health Counselor1164091872
  2. Jordan AveryPsychiatry Physician1316682545
  3. Aaren Barton, LMSWClinical Social Worker1285465831
  4. Patricia Beach, M.D.Pediatrics Physician1326130162
  5. Gerald Beathard, MDNephrology Physician1467654541
  6. Christopher Blewett, MDPediatric Surgery Physician1477524502

Verify Lindsay Kay Sonstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license M8037
    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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33% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,117 Medicare Part D claims for 199 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 76 claims were for opioids.

  1. Lindsay Sonstein2,117
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium157 claims
  2. Amlodipine Besylate101 claims
  3. Gabapentin74 claims
  4. Levothyroxine Sodium69 claims
  5. Hydrochlorothiazide67 claims
  6. Furosemide63 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): 75 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 score73.8
  2. Costout of 100 · 30%47.8
  3. Promoting interoperabilityout of 100 · 25%94.0
  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. Utmb Faculty Group PracticeTexas City, TX

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

Lindsay Kay Sonstein among 9,175 internal medicine physician records in Texas

Lindsay Kay Sonstein, MD 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2005 · median 2004 among the 6,088 with a school on file
  • Record last updated2014 · 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).

218 internal medicine physician records list a practice address in Galveston

They are 218 of the 2,532 NPPES records with a practice address in Galveston, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sunil Amalraj, MDGalveston, TX 775551558420331
  2. Megan Berman, MDGalveston, TX 775551659456226
  3. Thomas Blackwell, MDGalveston, TX 775551659430478
  4. Peter Cram, MDGalveston, TX 775551437132883
  5. Karen Hansen, MDGalveston, TX 775551811055445
  6. Mark Holden, MDGalveston, TX 775551447319991
  7. Bernard Karnath, MDGalveston, TX 775551285793760
  8. Russell Laforte, MDGalveston, TX 775551972662450

Common questions

What is Lindsay Kay Sonstein, MD's NPI number?

Lindsay Kay Sonstein, MD's National Provider Identifier (NPI) is 1497959068, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Lindsay Kay Sonstein, MD located?

The NPPES record lists a practice address at 400 Harborside Dr, Galveston, TX, 77555. Phone: (409) 747-1883. Providers update this record themselves, so call before visiting.

How can I verify Lindsay Kay Sonstein, MD's license?

NPPES lists Texas license number M8037, 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 Lindsay Kay Sonstein, MD prescribe under Medicare Part D?

In 2024, Lindsay Kay Sonstein, MD had 2,117 Medicare Part D claims for 199 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Lindsay Kay Sonstein, MD's MIPS final score?

The 2023 MIPS final score is 75 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.