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MRS. JENNIFER ELIZABETH WARREN RN, FNP
NPI 1982121885
Nurse Practitioner in Santa Rosa, CA

Active since August 23, 2017PECOS EnrolledAccepts Medicare Assignment
1144 SONOMA AVE STE 119, SANTA ROSA, CA 95405(707) 544-3811(707) 544-0128 Get Directions Write a Review

NPPES record last updated: November 11, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 11, 2021, Aug 23, 2017 (2 updates tracked since 2017).

About Mrs. Jennifer Elizabeth Warren Rn, Fnp NPPES

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

MRS. JENNIFER ELIZABETH WARREN RN, FNP (NPI 1982121885) is an individual nurse practitioner in Santa Rosa, California, licensed in California (95006907) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1982121885
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. JENNIFER ELIZABETH WARRENCredential: RN, FNP
Location Address1144 SONOMA AVE STE 119Santa Rosa, CA 95405-4812
Mailing Address1144 Sonoma Ave Ste 119Santa Rosa, CA 95405-4812 · (707) 544-3811 · Fax (707) 544-0128
Phone(707) 544-3811
Fax(707) 544-0128
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateAugust 23, 2017
Last NPPES UpdateNovember 11, 20212 updates tracked since enumeration
NPPES CertifiedNovember 11, 2021
✔ NPI 1982121885 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95006907
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.
1144 SONOMA AVE STE 119, Santa Rosa, CA 95405
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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 and accepts Medicare assignment

Mrs. Jennifer Elizabeth Warren Rn, Fnp 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.

PECOS PAC ID2567736887
PECOS Enrollment IDI20170925001999
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 Jennifer Warren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Providence Medical Foundation
0.1 mi
Internal Medicine
500 DOYLE PARK DR, SUITE 303
Santa Rosa, CA 95405
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1740584473 (707) 303-8300

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 9

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
354 services252 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
114 services83 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
71 services48 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
31 services31 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
19 services19 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
18 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95405 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
$96.16 typical visit price
range $63.04 – $187.01
Typical copayment $24.04 (range $15.76 – $46.75)
Most-billed visit code 99203
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JUSTIN WU DDS
Dentist (Endodontics)
1144 SONOMA AVE STE 119
SANTA ROSA, CA 95405
Sonoma County (650) 575-3071
DR. NATANYA LILLIAN MARRACINO BROWN DMD
Dentist (Endodontics)
1144 SONOMA AVE STE 119
SANTA ROSA, CA 95405
Sonoma County (707) 527-9170

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 Jennifer Warren's NPI number?

The NPI number for Jennifer Warren is 1982121885. It was assigned to this individual provider in the NPPES registry on August 23, 2017.

Where is Jennifer Warren located?

Jennifer Warren practices at 1144 Sonoma Ave Ste 119, Santa Rosa, CA 95405. The listed phone number is (707) 544-3811.

What is Jennifer Warren's specialty?

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

Is Jennifer Warren enrolled in Medicare?

Yes. Jennifer Warren 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.

Which organization bills Medicare for Jennifer Warren's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Warren reassigns Medicare benefits to Providence Medical Foundation (Santa Rosa, 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 Jennifer Warren'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 Jennifer Warren was last updated on November 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.