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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JENNIFER KATHLEEN ALCAREZ ANDERSON MD JD
NPI 1801259049
Anesthesiology in Greenbrae, CA

Active since April 04, 2016PECOS Enrolled
MARINHEALTH MEDICAL CENTER, 250 BON AIR ROAD, GREENBRAE, CA 94904(415) 925-7000 Get Directions Write a Review

NPPES record last updated: August 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Jennifer Kathleen Alcarez Anderson Md Jd NPPES

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

DR. JENNIFER KATHLEEN ALCAREZ ANDERSON MD JD (NPI 1801259049) is an individual anesthesiology provider in Greenbrae, California, licensed in California (211475) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Unc Hospitals, and is a graduate of University Of Michigan Medical School (2016).

NPPES Registry Identity

NPI1801259049
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. JENNIFER KATHLEEN ALCAREZ ANDERSONCredential: MD JD
Location AddressMARINHEALTH MEDICAL CENTER, 250 BON AIR ROADGreenbrae, CA 94904
Mailing AddressPo Box 527Larkspur, CA 94977-0527 · (415) 870-3540
Phone(415) 925-7000
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2016
Enumeration DateApril 4, 2016
Last NPPES UpdateAugust 27, 2026
NPPES CertifiedAugust 27, 2026
✔ NPI 1801259049 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · 211475
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
MARINHEALTH MEDICAL CENTER, Greenbrae, CA 94904
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Other Names 1

Former Name (1)Ms. Jennifer Kathleen Alcarez Jd

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jennifer Kathleen Alcarez Anderson Md Jd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3072807833
PECOS Enrollment IDI20250910000519
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 Anderson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of North Carolina At Chapel Hill
2,382 mi
Neurological Surgery
2206 WILBORN AVE, SUITE ONE
South Boston, VA 24592
  • Reassigned Medicare billing, North Carolina enrollment
  • 2,797 clinicians in this Medicare group
NPI 1407308703 (984) 974-1273

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Unc Hospitals

Acute Care Hospitals · Chapel Hill, NC
5/5 CMS rating
OwnershipGovernment - State
CMS Certification Number340061
Location101 Manning DriveChapel Hill, NC 27514 · Orange County
Emergency services Birthing friendly

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 Anderson's NPI number?

The NPI number for Jennifer Anderson is 1801259049. It was assigned to this individual provider in the NPPES registry on April 4, 2016. The provider is also known as Ms. Jennifer Kathleen Alcarez Jd.

Where is Jennifer Anderson located?

Jennifer Anderson practices at Marinhealth Medical Center 250 Bon Air Road, Greenbrae, CA 94904. The listed phone number is (415) 925-7000.

What is Jennifer Anderson's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Jennifer Anderson enrolled in Medicare?

Yes. Jennifer Anderson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jennifer Anderson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Anderson reassigns Medicare benefits to University Of North Carolina At Chapel Hill (South Boston, VA). 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 Anderson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Jennifer Anderson affiliated with any hospitals?

According to CMS data, Jennifer Anderson is affiliated with Unc Hospitals.

When was this NPI record last updated?

The NPPES record for Jennifer Anderson was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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.