KAREN HARUMI NATSUHARA MSN, FNP
NPI 1629194667
Nurse Practitioner - Family in Sacramento, CA
About Karen Harumi Natsuhara Msn, Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN HARUMI NATSUHARA MSN, FNP (NPI 1629194667) is an individual family provider in Sacramento, California, licensed in California (NPF9824) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Karen Harumi Natsuhara Msn, Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Karen Natsuhara reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 clinicians in this Medicare group
Stockton, CA 95204
- Reassigned Medicare billing, California enrollment
- 16 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
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 95817 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.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Natsuhara's NPI number?
The NPI number for Karen Natsuhara is 1629194667. It was assigned to this individual provider in the NPPES registry on March 21, 2007.
Where is Karen Natsuhara located?
Karen Natsuhara practices at 4501 X St 2nd Floor, Sacramento, CA 95817. The listed phone number is (916) 734-5959.
What is Karen Natsuhara's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Natsuhara enrolled in Medicare?
Yes. Karen Natsuhara is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Natsuhara's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Natsuhara reassigns Medicare benefits to 2 organizations: Regents Of The Univ Of Ca (Sacramento, CA) and Stockton Hematology Oncology Medical Group, Inc (Stockton, 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 Karen Natsuhara'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 Karen Natsuhara was last updated on August 27, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Karen Harumi Natsuhara, MSN, FNP · NPI 1629194667
Family physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since March 21, 2007.
## Identity
- **NPI:** 1629194667 (Entity type: Individual)
- **Enumerated:** March 21, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** NPF9824 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4501 X ST, 2ND FLOOR, Sacramento, CA 95817-2229
- **Phone:** (916) 734-5959 · **Fax:** (916) 703-5265
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The Univ Of Ca (NPI 1013906973, Sacramento, CA); Stockton Hematology Oncology Medical Group, Inc (NPI 1922175074, Stockton, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 27, 2015
- **Other identifiers:** Other RN318402 (CA); Other NP318402 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1629194667) · Data from the CMS NPPES public registry.