Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Gustavo D. Villamar, MD

Works at hospitals in Houston, TX · Texas

Summary

Dr. Gustavo D. Villamar, MD is a family doctor at 16605 Southwest Fwy, Sugar Land, TX 77479. Phone: (281) 275-0800. Accepts Medicare assignment. In 2024, Gustavo D. Villamar had 228 Original Medicare patients and 639 services. NPI 1427627249. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Gustavo D. Villamar, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Gustavo D. Villamar accept Medicare assignment?
Yes. Medicare's clinician data says Gustavo D. Villamar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gustavo D. Villamar see?
In 2024, CMS data shows 228 Original Medicare patients and 639 services for Gustavo D. Villamar. This counts Original Medicare only and measures volume, not quality.
What is Gustavo D. Villamar's NPI number?
1427627249. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Gustavo D. Villamar, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients228
Services billed to Medicare639
Different services or procedures35
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)287 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)67 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)43 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)39 services
  5. Assessment of emotional or behavioral problems (96127)21 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis41%
  • Diabetes37%
  • Ischemic heart disease33%
  • Chronic kidney disease27%

Hospitals where Gustavo D. Villamar works

Medicare's Facility Affiliation Data lists Gustavo D. Villamar at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Gustavo D. Villamar is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

  • 16605 Southwest FwySugar Land, TX 77479 (281) 275‑0800
  • 16605 Southwest Fwy 400 Mob3, Methodist Family Medicine GroupSugar Land, TX 77479 (281) 275‑0800
  • 16605 SW Fwy 410, Methodist Diag Card of HoustonSugar Land, TX 77479 (281) 274‑0148
  • 18220 St Hwy 249Houston, TX 77070
  • 18220 Tomball PkwyHouston, TX 77070

Group practices

Medicare enrollment lists Gustavo D. Villamar as a member of this group (CMS data updated October 2, 2026).

  • TMH Physician Associates PLLC1,690 clinicians in the group

Specialties

Find other Family Practice doctors in Texas →

Other family doctors in Sugar Land

Clinicians with the same Medicare primary specialty in Sugar Land, TX — not a recommendation.

All family doctors in Sugar Land →

Other clinicians in TMH Physician Associates PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1427627249
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians