KAREN M DON MD
NPI 1184655698
Internal Medicine in Fountain Valley, CA
About Karen M Don Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN M DON MD (NPI 1184655698) is an individual internal medicine provider in Fountain Valley, California, licensed in California (G78774) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Geffen School Of Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Karen M Don Md 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92708 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.
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
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 Karen Don's NPI number?
The NPI number for Karen Don is 1184655698. It was assigned to this individual provider in the NPPES registry on July 5, 2006.
Where is Karen Don located?
Karen Don practices at 9900 Talbert Ave Suite 302, Fountain Valley, CA 92708. The listed phone number is (714) 965-2500.
What is Karen Don's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Karen Don enrolled in Medicare?
Yes. Karen Don 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.
When was this NPI record last updated?
The NPPES record for Karen Don was last updated on February 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Karen M Don, MD · NPI 1184655698
Internal Medicine physician in Fountain Valley, California. Individual provider, active in the CMS NPPES registry since July 5, 2006.
## Identity
- **NPI:** 1184655698 (Entity type: Individual)
- **Enumerated:** July 5, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G78774 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9900 TALBERT AVE, SUITE 302, Fountain Valley, CA 92708-5153
- **Phone:** (714) 965-2500 · **Fax:** (714) 965-2581
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** February 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184655698) · Data from the CMS NPPES public registry.