KAREN M DON MD
NPI 1184655698
Internal Medicine in Fountain Valley, CA

Active since July 05, 2006PECOS EnrolledAccepts Medicare Assignment
9900 TALBERT AVE, SUITE 302, FOUNTAIN VALLEY, CA 92708(714) 965-2500(714) 965-2581 Get Directions Write a Review

NPPES record last updated: February 21, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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).Information from the official NPPES registry record.

NPPES Registry Identity

NPI1184655698
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN M DONCredential: MD
Location Address9900 TALBERT AVE, SUITE 302Fountain Valley, CA 92708-5153
Mailing AddressPo Box 8039Fountain Valley, CA 92728-8039 · (714) 965-2500 · Fax (714) 965-2581
Fax(714) 965-2581
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1992
Enumeration DateJuly 5, 2006
Last NPPES UpdateFebruary 21, 2026
NPPES CertifiedFebruary 21, 2026
NPI 1184655698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · G78774
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

9900 TALBERT AVE, Fountain Valley, CA 92708

Secondary Practice Locations 2

Location 118682 Beach Blvd Ste 150Huntington Beach, CA 92648-2050 · Phone (714) 965-2500 · Fax (714) 965-2593
Location 220981 Magnolia StHuntington Beach, CA 92646-6338 · Phone (714) 965-2500 · Fax (714) 965-2593

Medicare Participation & PECOS Enrollment Status

Karen Don is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Karen Don is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7719900653

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20100814000108

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $35.59 for a new patient copayment and $27.49 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 92708 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $142.39
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $35.59
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $109.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $27.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
9900 TALBERT AVE, STE 100
FOUNTAIN VALLEY, CA 92708
Pediatrics
9900 TALBERT AVE, SUITE 201
FOUNTAIN VALLEY, CA 92708
Internal Medicine
9900 TALBERT AVE, SUITE 302
FOUNTAIN VALLEY, CA 92708
Surgery
9900 TALBERT AVE, SUITE 201
FOUNTAIN VALLEY, CA 92708
Pediatrics
9900 TALBERT AVE, SUITE 201
FOUNTAIN VALLEY, CA 92708
Pediatrics
9900 TALBERT AVE, SUITE 201
FOUNTAIN VALLEY, CA 92708
Internal Medicine (Critical Care Medicine)
9900 TALBERT AVE, SUITE 203
FOUNTAIN VALLEY, CA 92708
Pediatrics
9900 TALBERT AVE, SUITE 201
FOUNTAIN VALLEY, CA 92708
Pediatrics
9900 TALBERT AVE, STE 201
FOUNTAIN VALLEY, CA 92708
Specialist
9900 TALBERT AVE, 101
FOUNTAIN VALLEY, CA 92708
Internal Medicine (Hematology & Oncology)
9900 TALBERT AVE, SUITE 103
FOUNTAIN VALLEY, CA 92708
Specialist
9900 TALBERT AVE, SUITE 202
FOUNTAIN VALLEY, CA 92708
Advanced Practice Midwife
9900 TALBERT AVE, SUITE 202
FOUNTAIN VALLEY, CA 92708
Specialist
9900 TALBERT AVE, SUITE 103
FOUNTAIN VALLEY, CA 92708
Obstetrics & Gynecology
9900 TALBERT AVE, SUITE 202
FOUNTAIN VALLEY, CA 92708
Internal Medicine (Gastroenterology)
9900 TALBERT AVE, STE 100
FOUNTAIN VALLEY, CA 92708
Nurse Practitioner (Obstetrics & Gynecology)
9900 TALBERT AVE, SUITE 202
FOUNTAIN VALLEY, CA 92708
Nurse Practitioner (Adult Health)
9900 TALBERT AVE
FOUNTAIN VALLEY, CA 92708
Radiology (Diagnostic Radiology)
9900 TALBERT AVE, SUITE #102
FOUNTAIN VALLEY, CA 92708
Radiology (Diagnostic Radiology)
9900 TALBERT AVE, SUITE #102
FOUNTAIN VALLEY, CA 92708

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184655698, enumerated as an "individual" on July 05, 2006.

The provider is located at 9900 TALBERT AVE SUITE 302 FOUNTAIN VALLEY, CA 92708 and the phone number is (714) 965-2500.

Internal Medicine with taxonomy code 207R00000X.