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

Obstetrics/Gynecology

Cathleen S. Mills, MD

Sees patients in Leesburg, VA · Potomac Falls, VA · Virginia

Summary

Dr. Cathleen S. Mills, MD is an OB-GYN at 161 Fort Evans, Suite 320, Leesburg, VA 20176. Phone: (703) 777-5111. Accepts Medicare assignment. In 2024, Cathleen S. Mills had 36 Original Medicare patients and 59 services. NPI 1922000660. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 161 Fort Evans, Suite 320, Leesburg, VA 20176 · Directions (2 more locations)
  • Phone: (703) 777‑5111
  • Medicare: Accepts Medicare assignment
  • Group practice: Capital Womens Care LLC
  • Medical school: Uniformed Services Uhs Fe Hebert School Of Med · graduated 1996 (30 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cathleen S. Mills, 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 Cathleen S. Mills accept Medicare assignment?
Yes. Medicare's clinician data says Cathleen S. Mills 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 Cathleen S. Mills see?
In 2024, CMS data shows 36 Original Medicare patients and 59 services for Cathleen S. Mills. This counts Original Medicare only and measures volume, not quality.
What is Cathleen S. Mills's NPI number?
1922000660. 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 Cathleen S. Mills, 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 patients36
Services billed to Medicare59
Different services or procedures10
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)20 services
  2. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)14 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 cholesterol75%
  • Arthritis58%
  • High blood pressure53%
  • Osteoporosis31%

Practice locations

Addresses where Cathleen S. Mills is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cathleen S. Mills as a member of this group (CMS data updated October 2, 2026).

  • Capital Womens Care LLC281 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Virginia →

Other OB-GYNs in Leesburg

Clinicians with the same Medicare primary specialty in Leesburg, VA — not a recommendation.

All OB-GYNs in Leesburg →

Other clinicians in Capital Womens Care LLC

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

Clinician information

CredentialMD
Medical schoolUniformed Services Uhs Fe Hebert School Of Med
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922000660
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians