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KIMBERLY HUMPHREY NP
NPI 1972829521
Nurse Practitioner in Martinez, CA

Active since April 07, 2010PECOS Enrolled
597 CENTER AVE, SUITE 150, MARTINEZ, CA 94553(925) 313-6937(925) 313-6188 Get Directions Write a Review

NPPES record last updated: June 25, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Kimberly Humphrey Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KIMBERLY HUMPHREY NP (NPI 1972829521) is an individual nurse practitioner in Martinez, California, licensed in California (NP19647) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1972829521
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameKIMBERLY HUMPHREYCredential: NP
Location Address597 CENTER AVE, SUITE 150Martinez, CA 94553-4640
Mailing Address597 Center St., Suite 150Martinez, CA 94533 · (925) 313-6937
Phone(925) 313-6937
Fax(925) 313-6188
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateApril 7, 2010
Last NPPES UpdateJune 25, 2013
✔ NPI 1972829521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · NP19647
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License RN633283 (CA)
597 CENTER AVE, Martinez, CA 94553
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kimberly Humphrey Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446748701
PECOS Enrollment IDI20251020002871
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Kimberly Humphrey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Contra Costa County
0.3 mi
Community/Behavioral Health
10 DOUGLAS DR, SUITE 140
Martinez, CA 94553
  • Reassigned Medicare billing, California enrollment
  • 530 clinicians in this Medicare group
NPI 1750509162 (925) 957-5110

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94553 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

KARIN WONNENBERG RN, PHN
Registered Nurse (Case Management)
597 CENTER AVE, SUITE 150
MARTINEZ, CA 94553
Contra Costa County (925) 313-6924
MS. JEANNE CUNNINGHAM
Registered Nurse (Case Management)
597 CENTER AVE
MARTINEZ, CA 94553
Contra Costa County (925) 313-6638
MRS. LISA VICTORIA RANDON-WALKER RN, PHN
Registered Nurse (Case Management)
597 CENTER AVE, SUITE 150
MARTINEZ, CA 94553
Contra Costa County (925) 313-6962
MR. PAUL E CARDINET RN.,PHN
Registered Nurse (Community Health)
597 CENTER AVE, SUITE 200-A
MARTINEZ, CA 94553
Contra Costa County (925) 313-6740
COLLEEN HOEHN RN
Registered Nurse (Case Management)
597 CENTER AVE, SUITE 200
MARTINEZ, CA 94553
Contra Costa County (925) 313-6740
CONTRA COSTA COUNTY
Clinic/Center (Public Health, State or Local)
597 CENTER AVE, SUITE 200 A
MARTINEZ, CA 94553
Contra Costa County (925) 957-5429
KATE SCHWERTSCHARF PHN
Registered Nurse (Case Management)
597 CENTER AVE, SUITE 150
MARTINEZ, CA 94553
Contra Costa County (925) 313-6707
YIN YA LIU RN
Registered Nurse (Community Health)
597 CENTER AVE
MARTINEZ, CA 94553
Contra Costa County (925) 313-6250

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 Kimberly Humphrey's NPI number?

The NPI number for Kimberly Humphrey is 1972829521. It was assigned to this individual provider in the NPPES registry on April 7, 2010.

Where is Kimberly Humphrey located?

Kimberly Humphrey practices at 597 Center Ave Suite 150, Martinez, CA 94553. The listed phone number is (925) 313-6937.

What is Kimberly Humphrey's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Kimberly Humphrey enrolled in Medicare?

Yes. Kimberly Humphrey is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kimberly Humphrey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kimberly Humphrey reassigns Medicare benefits to Contra Costa County (Martinez, CA). The 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 Kimberly Humphrey'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 Kimberly Humphrey was last updated on June 25, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.