DR. DAVID HOWARD WHITAKER D.O.
NPI 1255331203
Emergency Medicine in Fontana, CA
About Dr. David Howard Whitaker D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID HOWARD WHITAKER D.O. (NPI 1255331203) is an individual emergency medicine provider in Fontana, California, licensed in California (20A8427) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. David Howard Whitaker D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show David Whitaker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1952333460 (California)
- 5,228 clinicians in this Medicare group
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 clinicians in this Medicare group
Salem, OR 97317
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1871848457 (Washington)
- 3,207 clinicians in this Medicare group
Renton, WA 98057
- Reassigned Medicare billing, Washington enrollment
- 2,678 clinicians in this Medicare group
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 92335 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
FONTANA, CA 92335
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 David Whitaker's NPI number?
The NPI number for David Whitaker is 1255331203. It was assigned to this individual provider in the NPPES registry on July 29, 2005.
Where is David Whitaker located?
David Whitaker practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-5000.
What is David Whitaker's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is David Whitaker enrolled in Medicare?
Yes. David Whitaker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Whitaker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Whitaker reassigns Medicare benefits to 4 organizations: Southern California Permanente Medical Group (Fontana, CA), Colorado Permanente Medical Group, P.C. (Denver, CO), South Salem Rehabilitation, LLC (Salem, OR) and Kaiser Foundation Health Plan Of Washington (Renton, WA). Each 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 David Whitaker'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 David Whitaker was last updated on May 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Dr. David Howard Whitaker, D.O. · NPI 1255331203
Emergency Medicine physician in Fontana, California. Individual provider, active in the CMS NPPES registry since July 29, 2005.
## Identity
- **NPI:** 1255331203 (Entity type: Individual)
- **Enumerated:** July 29, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 20A8427 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9961 SIERRA AVE, Fontana, CA 92335-6720
- **Phone:** (909) 427-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA); Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO); South Salem Rehabilitation, LLC (NPI 1215071998, Salem, OR); Kaiser Foundation Health Plan Of Washington (NPI 1124264577, Renton, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** May 29, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1255331203) · Data from the CMS NPPES public registry.