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Obstetrics/Gynecology

Margaret Carrasco Arias, MD

Works at hospitals in West Chester, PA · Paoli, PA · Pennsylvania

Summary

Dr. Margaret Carrasco Arias, MD is an OB-GYN at 85 Old Eagle School Rd, Rwhg Main Line Ob/gyn, Strafford, PA 19087. Phone: (610) 688-3744. Accepts Medicare assignment. In 2024, Margaret Carrasco Arias had 38 Original Medicare patients and 61 services. NPI 1336600998. 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.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 85 Old Eagle School Rd, Rwhg Main Line Ob/gyn, Strafford, PA 19087 · Directions
  • Phone: (610) 688‑3744
  • Medicare: Accepts Medicare assignment
  • Hospitals: Chester County Hospital, Paoli Hospital
  • Group practice: Regional Womens Health Group LLC
  • Medical school: University Of California, San Francisco School Of Medicine · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Margaret Carrasco Arias, 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 Margaret Carrasco Arias accept Medicare assignment?
Yes. Medicare's clinician data says Margaret Carrasco Arias 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 Margaret Carrasco Arias see?
In 2024, CMS data shows 38 Original Medicare patients and 61 services for Margaret Carrasco Arias. This counts Original Medicare only and measures volume, not quality.
What is Margaret Carrasco Arias's NPI number?
1336600998. 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 Margaret Carrasco Arias, 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 patients38
Services billed to Medicare61
Different services or procedures14
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)22 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)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 cholesterol74%
  • Arthritis50%
  • High blood pressure47%
  • Depression32%

Hospitals where Margaret Carrasco Arias works

Medicare's Facility Affiliation Data lists Margaret Carrasco Arias 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.

  • Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
  • Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153

Practice locations

Addresses where Margaret Carrasco Arias is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Margaret Carrasco Arias as a member of this group (CMS data updated October 2, 2026).

  • Regional Womens Health Group LLC354 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Pennsylvania →

Other OB-GYNs in Pennsylvania

Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.

All OB-GYNs in Pennsylvania →

Other clinicians in Regional Womens Health Group LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336600998
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