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DR. DONALD P. DUDLEY M.D.
NPI 1497727952
Emergency Medicine in Sonora, CA

Active since February 07, 2006PECOS Enrolled
1000 GREENLEY RD, SONORA, CA 95370(209) 536-3460 Get Directions Write a Review

NPPES record last updated: March 23, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Donald P. Dudley M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DONALD P. DUDLEY M.D. (NPI 1497727952) is an individual emergency medicine provider in Sonora, California, licensed in California (G042440) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497727952
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. DONALD P. DUDLEYCredential: M.D.
Location Address1000 GREENLEY RDSonora, CA 95370-5200
Mailing Address23198 Hardscrabble CtSonora, CA 95370-8535 · (209) 586-9200 · Fax (209) 586-9300
Phone(209) 536-3460
Sole ProprietorNo
Enumeration DateFebruary 7, 2006
Last NPPES UpdateMarch 23, 2009
✔ NPI 1497727952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · G042440
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1000 GREENLEY RD, Sonora, CA 95370
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Other Identifiers 2

Medicare UPINA48966CA
Medicare ID-Type UnspecifiedZZZ22859Z

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Donald P. Dudley M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Donald Dudley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sierra Emergency Medical Group Inc.
Same address
Emergency Medicine
1000 GREENLEY RD
Sonora, CA 95370
  • Reassigned Medicare billing, California enrollment
  • 36 clinicians in this Medicare group
NPI 1871732933 (209) 263-0803

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95370 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WYATT STEBBINS PA-C
Physician Assistant
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 532-1326
CATHERINE YOUNGEUN LEE
Hospitalist
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-5000
MARY GAIL ALLARD PHARMD
Pharmacist
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-3692
DR. KEVIN GANDHI DO
Internal Medicine
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-5000
LEVI ROBERTSON
Registered Nurse
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-5000
JIANDONG WEI MD
Internal Medicine
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-5000
BRITTNEY SCOTT
Registered Nurse
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (562) 485-8246
MR. WILLIAM PATTY RNFA
General Acute Care Hospital
1000 GREENLEY RD
SONORA, CA 95370
Tuolumne County (209) 536-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Donald Dudley's NPI number?

The NPI number for Donald Dudley is 1497727952. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is Donald Dudley located?

Donald Dudley practices at 1000 Greenley Rd, Sonora, CA 95370. The listed phone number is (209) 536-3460.

What is Donald Dudley's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Donald Dudley enrolled in Medicare?

Yes. Donald Dudley is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Donald Dudley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Donald Dudley reassigns Medicare benefits to Sierra Emergency Medical Group Inc. (Sonora, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Donald Dudley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Donald Dudley was last updated on March 23, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.