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

Pathology

Valerie C. McWhorter, MD

Works at hospitals in Orange, CA · Salem, OR · California, Oregon

Summary

Dr. Valerie C. McWhorter, MD is a pathologist at 20001 S Rancho Way, Rancho Dominguez, CA 90220. Phone: (310) 225-3244. Accepts Medicare assignment. In 2024, Valerie C. McWhorter had 702 Original Medicare patients and 1,822 services. NPI 1164528139. 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: Pathologist (Medicare lists Pathology)
  • Address: 20001 S Rancho Way, Rancho Dominguez, CA 90220 · Directions (2 more locations)
  • Phone: (310) 225‑3244
  • Medicare: Accepts Medicare assignment
  • Hospitals: Providence St. Joseph Hospital, Salem Hospital
  • Group practice: Affiliated Pathologists Medical Group, Inc. (+1 more)
  • Medical school: graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Valerie C. McWhorter, 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 Valerie C. McWhorter accept Medicare assignment?
Yes. Medicare's clinician data says Valerie C. McWhorter 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 Valerie C. McWhorter see?
In 2024, CMS data shows 702 Original Medicare patients and 1,822 services for Valerie C. McWhorter. This counts Original Medicare only and measures volume, not quality.
What is Valerie C. McWhorter's NPI number?
1164528139. 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 Valerie C. McWhorter, 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 patients702
Services billed to Medicare1,822
Different services or procedures23
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,372 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)114 services
  3. Special stained specimen slides to examine tissue, initial procedure (88342)58 services
  4. Pathology examination of tissue using a microscope, moderately high complexity (88307)37 services
  5. Evaluation of fine needle aspirate with interpretation and report (88173)16 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 cholesterol65%
  • High blood pressure61%
  • Arthritis40%
  • Diabetes21%
  • Ischemic heart disease20%
  • Depression20%

Hospitals where Valerie C. McWhorter works

Medicare's Facility Affiliation Data lists Valerie C. McWhorter 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.

  • Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050069
  • Salem HospitalSalem, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380051

Practice locations

Addresses where Valerie C. McWhorter is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Valerie C. McWhorter as a member of these groups (CMS data updated October 2, 2026).

  • Affiliated Pathologists Medical Group, Inc.45 clinicians in the group
  • Pacific Pathology Associates Inc17 clinicians in the group

Specialties

Find other Pathology doctors in California →

Other pathologists in Rancho Dominguez

Clinicians with the same Medicare primary specialty in Rancho Dominguez, CA — not a recommendation.

All pathologists in Rancho Dominguez →

Other clinicians in Affiliated Pathologists Medical Group, Inc.

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

Clinician information

CredentialMD
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164528139
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