DR. CHADWICK JAMES DONALDSON MD, MS, MPH
NPI 1891743910
Otolaryngology in Camp Pendleton, CA
About Dr. Chadwick James Donaldson Md, Ms, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHADWICK JAMES DONALDSON MD, MS, MPH (NPI 1891743910) is an individual otolaryngology provider in Camp Pendleton, California, licensed in California (A84567) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Carbondale, and is a graduate of Tulane University School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Chadwick James Donaldson Md, Ms, Mph 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
7Medicare enrollment records show Chadwick Donaldson reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carlsbad, CA 92008
- Reassigned Medicare billing, California enrollment
- 24 clinicians in this Medicare group
Murrieta, CA 92563
- Reassigned Medicare billing, California enrollment
- 240 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 218 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
El Centro, CA 92243
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Bakersfield, CA 93306
- Reassigned Medicare billing, California enrollment
- 532 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.
Areas of Expertise CMS Part B claims 11
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92055 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Chadwick Donaldson's NPI number?
The NPI number for Chadwick Donaldson is 1891743910. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is Chadwick Donaldson located?
Chadwick Donaldson practices at H200 Mercy Lane, Camp Pendleton, CA 92055. The listed phone number is (760) 725-6646.
What is Chadwick Donaldson's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Chadwick Donaldson enrolled in Medicare?
Yes. Chadwick Donaldson 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 Chadwick Donaldson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chadwick Donaldson reassigns Medicare benefits to 7 organizations: Ritvik Mehta, MD Apc (Carlsbad, CA), United Medical Doctors (Murrieta, CA), Emergency And Acute Care Medical Corporation (San Diego, CA), On Call Specialists Medical Group Of San Diego, Inc. (San Diego, CA), Hillcrest Ear Nose & Throat Inc (San Diego, CA) and 2 more organizations, listed in the Medicare section above. 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 Chadwick Donaldson'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 Chadwick Donaldson was last updated on April 1, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Chadwick James Donaldson, MD, MS, MPH · NPI 1891743910
Otolaryngology physician in Camp Pendleton, California. Individual provider, active in the CMS NPPES registry since May 4, 2006.
## Identity
- **NPI:** 1891743910 (Entity type: Individual)
- **Enumerated:** May 4, 2006
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** A84567 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** H200 MERCY LANE, Camp Pendleton, CA 92055
- **Phone:** (760) 725-6646
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Ritvik Mehta, MD Apc (NPI 1538302997, Carlsbad, CA); United Medical Doctors (NPI 1770559981, Murrieta, CA); Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA); On Call Specialists Medical Group Of San Diego, Inc. (NPI 1962175836, San Diego, CA); Hillcrest Ear Nose & Throat Inc (NPI 1801473384, San Diego, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** April 1, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1891743910) · Data from the CMS NPPES public registry.