DAVID A HAM M.D.
NPI 1952515959
Family Medicine in Vista, CA
About David A Ham M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID A HAM M.D. (NPI 1952515959) is an individual family medicine provider in Vista, California, licensed in California (A94899) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
David A Ham M.d. 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
2Medicare enrollment records show David Ham reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 1,598 clinicians in this Medicare group
Murrieta, CA 92563
- Reassigned Medicare billing, California enrollment
- 240 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 13
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 92083 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.
VISTA, CA 92083
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 Ham's NPI number?
The NPI number for David Ham is 1952515959. It was assigned to this individual provider in the NPPES registry on May 9, 2007.
Where is David Ham located?
David Ham practices at 130 Cedar Rd, Vista, CA 92083. The listed phone number is (760) 806-5400.
What is David Ham's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Ham enrolled in Medicare?
Yes. David Ham 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 Ham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Ham reassigns Medicare benefits to 2 organizations: Scripps Health (Encinitas, CA) and United Medical Doctors (Murrieta, CA). 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 Ham'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 Ham was last updated on March 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.