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Family Practice

Dorothy L. Du Graff, DO

Works at hospitals in Ventura, CA · California

Summary

Dr. Dorothy L. Du Graff, DO is a family doctor at 422 Arneill Rd B, Camarillo, CA 93010. Phone: (805) 383-4510. Accepts Medicare assignment. In 2024, Dorothy L. Du Graff had 179 Original Medicare patients and 948 services. NPI 1699180935. 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: Family doctor (Medicare lists Family Practice)
  • Address: 422 Arneill Rd B, Camarillo, CA 93010 · Directions
  • Phone: (805) 383‑4510
  • Medicare: Accepts Medicare assignment
  • Hospital: Community Memorial Hospital - Ventura
  • Group practice: Community Memorial Health System
  • Medical school: graduated 2014 (12 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Dorothy L. Du Graff, 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 Dorothy L. Du Graff accept Medicare assignment?
Yes. Medicare's clinician data says Dorothy L. Du Graff 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 Dorothy L. Du Graff see?
In 2024, CMS data shows 179 Original Medicare patients and 948 services for Dorothy L. Du Graff. This counts Original Medicare only and measures volume, not quality.
What is Dorothy L. Du Graff's NPI number?
1699180935. 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 Dorothy L. Du Graff, 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 patients179
Services billed to Medicare948
Different services or procedures25
Participating Medicare providerYes
Average age of these patients70

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)295 services
  2. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)267 services
  3. 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)136 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)112 services
  5. Annual depression screening, 5 to 15 minutes (G0444)52 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 cholesterol69%
  • High blood pressure68%
  • Arthritis42%
  • Depression40%
  • Diabetes31%
  • Chronic kidney disease31%

Hospitals where Dorothy L. Du Graff works

Medicare's Facility Affiliation Data lists Dorothy L. Du Graff 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 Dorothy L. Du Graff is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Dorothy L. Du Graff as a member of this group (CMS data updated October 2, 2026).

  • Community Memorial Health System185 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Camarillo

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

All family doctors in Camarillo →

Other clinicians in Community Memorial Health System

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

Clinician information

CredentialDO
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1699180935
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