NPPES file of Aug 9, 2026

Esther Guy, MD

Internal Medicine Physician · Bellaire, TX

Esther Guy, MD is an internal medicine physician with a practice address in Bellaire, Texas, and NPI 1740399484, issued on Aug 29, 2006. Check the license (Texas K5547, 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
1740399484
Name
Esther Guy
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
K5547 TX
Self-reported in NPPES; status is on the state search
Practice location
5959 West Loop S Ste 510, Bellaire, TX 77401
Phone
(713) 526-5606
Enumerated
Aug 29, 2006
Record last updated
Mar 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(713) 526-0058
Medicare enrollment
Enrolled (PECOS I20040805001604); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1997
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 5959 West Loop S Ste 510

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

  1. Nancy Esper, M.D.Internal Medicine Physician1013006063

Verify Esther Guy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license K5547
    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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3% more Medicare Part D claims than the average internal medicine physician in 2024

3,280 Medicare Part D claims for 233 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. 61 claims were for opioids.

  1. Esther Guy3,280
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium241 claims
  2. Atorvastatin Calcium158 claims
  3. Synthroid136 claims
  4. Amlodipine Besylate135 claims
  5. Losartan Potassium92 claims
  6. Metoprolol Succinate82 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.

Industry payments in 2024: $1,556.55

64 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Esther Guy$1,556.55
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Esther Guy among 9,175 internal medicine physician records in Texas

Esther Guy, 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1997 · median 2004 among the 6,088 with a school on file
  • Record last updated2020 · 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).

30 internal medicine physician records list a practice address in Bellaire

They are 30 of the 1,159 NPPES records with a practice address in Bellaire, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Rachel Bishop, MDBellaire, TX 774011356348940
  2. Mark Blick, D.O.Bellaire, TX 774011811912041
  3. Bandana Chawla, MDBellaire, TX 774011619964020
  4. Danny Cheng, M.D.Bellaire, TX 774011437174661
  5. Nancy Esper, M.D.Bellaire, TX 774011013006063
  6. Alfredo Gueler, MDBellaire, TX 774011679506430
  7. Kelvin Lee, M.D.Bellaire, TX 774011851360499
  8. Stanley Lewis, M.D.Bellaire, TX 774011952392144

Common questions

What is Esther Guy, MD's NPI number?

Esther Guy, MD's National Provider Identifier (NPI) is 1740399484, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Esther Guy, MD located?

The NPPES record lists a practice address at 5959 West Loop S Ste 510, Bellaire, TX, 77401. Phone: (713) 526-5606. Providers update this record themselves, so call before visiting.

How can I verify Esther Guy, MD's license?

NPPES lists Texas license number K5547, 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 Esther Guy, MD prescribe under Medicare Part D?

In 2024, Esther Guy, MD had 3,280 Medicare Part D claims for 233 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.

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.