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Nephrology

Katherine Timmins, MD

Works at hospitals in Houston, TX · The Woodlands, TX · Texas

Summary

Dr. Katherine Timmins, MD is a nephrologist at 100 E Nasa Pkwy, Suite 35, Webster, TX 77598. Phone: (281) 332-2059. Accepts Medicare assignment. In 2024, Katherine Timmins had 225 Original Medicare patients and 1,055 services. NPI 1205854759. 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 Katherine Timmins, 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 Katherine Timmins accept Medicare assignment?
Yes. Medicare's clinician data says Katherine Timmins 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 Katherine Timmins see?
In 2024, CMS data shows 225 Original Medicare patients and 1,055 services for Katherine Timmins. This counts Original Medicare only and measures volume, not quality.
What is Katherine Timmins's NPI number?
1205854759. 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 Katherine Timmins, 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 patients225
Services billed to Medicare1,055
Different services or procedures20
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)305 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)186 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)141 services
  4. 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)111 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)77 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%
  • Chronic kidney disease75%
  • Diabetes61%
  • Heart failure60%
  • Ischemic heart disease59%

Hospitals where Katherine Timmins works

Medicare's Facility Affiliation Data lists Katherine Timmins 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 Katherine Timmins is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Katherine Timmins as a member of this group (CMS data updated October 2, 2026).

  • Renal Specialists of Houston, PA24 clinicians in the group

Specialties

Find other Nephrology doctors in Texas →

Other nephrologists in Webster

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

All nephrologists in Webster →

Other clinicians in Renal Specialists of Houston, PA

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

Clinician information

CredentialMD
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205854759
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