Karen Kay Klein, NP
Nurse Practitioner · Rancho Cordova, CA
At a glance
4040 Sunrise Blvd, Rancho Cordova, CA 95742-6922
NPPES record updated Dec 26, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4040 Sunrise BlvdRancho Cordova, CA 95742-6922
Additional reported practice locations
1250 Peach St Ste ASan Luis Obispo, CA 93401
Phone: 8055434043
Fax: 8055437640 1250 Peach St Ste B
San Luis Obispo, CA 93401
Phone: 8055434043
Fax: 8055437640 4460 Broad St Ste 110
San Luis Obispo, CA 93401
Phone: 8055976715
Fax: 8055414973 877 Oak Park Blvd
Pismo Beach, CA 93449
Phone: 8054748450
Fax: 8054748454 1560 Mesa Rd Ste 100
Nipomo, CA 93444
Phone: 8056145640
Fax: 8056145641 901 Oak Park Blvd Ste 101
Pismo Beach, CA 93449
Phone: 8054812205
Fax: 8054812206 685 Morro Ave Ste C
Morro Bay, CA 93442
Phone: 8057727313
Fax: 8057720395 265 Posada Ln Ste B
Templeton, CA 93465
Phone: 8054340900
Fax: 8054349260 2238 Bayview Heights Dr Ste G
Los Osos, CA 93402
Phone: 8055341305
Fax: 8055341346 697 W Tefft St
Nipomo, CA 93444
Phone: 8059292272
Fax: 8059291454 895 Aerovista Pl Ste 103
San Luis Obispo, CA 93401
Phone: 8055413200
Fax: 8055413700 5920 West Mall
Atascadero, CA 93422
Phone: 8054660676
Fax: 8054664862
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2000
- CMS specialties
- Nurse Practitioner
Practice groups
Reported hospital affiliations
- French Hospital Medical Center San Luis Obispo, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $30.36 |
Reporting companies
| Company | Amount |
|---|---|
| TANDEM DIABETES CARE, INC. | $30.36 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nurse Practitioner
- Taxonomy code
- 363L00000X
- Enumeration date
- Nov 8, 2006
- Record updated
- Dec 26, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- NP
Reported taxonomies and licenses
363LF0000X
License reported: NP12286 CA
363L00000X · Primary
License reported: 12286 CA
163WP1700X
License reported: 12286 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4040 Sunrise BlvdRancho Cordova, CA 95742-6922
- Phone
- (800) 972-5547
- Fax
- (916) 887-7930
Mailing address
877 OAK PARK BLVDPISMO BEACH, CA 934493292
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue