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KAREN MERZENICH CNM, WHNP
NPI 1003586363
Advanced Practice Midwife in Napa, CA

Active since September 17, 2021PECOS Enrolled

NPPES record last updated: September 17, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Karen Merzenich Cnm, Whnp NPPES

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

KAREN MERZENICH CNM, WHNP (NPI 1003586363) is an individual advanced practice midwife in Napa, California, licensed in California (236203) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003586363
Entity TypeIndividualFemale
Primary Taxonomy367A00000X
Provider Legal NameKAREN MERZENICHCredential: CNM, WHNP
Location Address300 HARTLE CTNapa, CA 94559-4078
Mailing Address2910 Lake StSan Francisco, CA 94121-1022 · (415) 205-9068
Phone(707) 254-1775
Sole ProprietorNo
Enumeration DateSeptember 17, 2021
NPPES CertifiedSeptember 17, 2021
✔ NPI 1003586363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAdvanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367A00000X
License✔ Licensed in CA · 236203
Definition
Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.
Also ListedRegistered NurseTaxonomy 163W00000X · License 95174102 (CA)
Also ListedNurse Practitioner · Women's HealthTaxonomy 363LW0102X · License 95018166 (CA)
300 HARTLE CT, Napa, CA 94559
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen Merzenich Cnm, Whnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94559 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
$98.97 typical visit price
range $65.08 – $192.16
Typical copayment $24.74 (range $16.27 – $48.04)
Most-billed visit code 99203
Established Patient
$80.32 typical visit price
range $21.86 – $157.83
Typical copayment $20.08 (range $5.46 – $39.45)
Most-billed visit code 99213
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.

JAMIE BONGIOVI LCSW
Social Worker
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
DR. ROBERT JAY HOPKINS MD, MPH & TM
Internal Medicine
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
RICARDO MENDEZ PA-C
Physician Assistant
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
ANGEL AGUILERA MD
Psychiatry & Neurology (Psychiatry)
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
DENISSE ALEMAN
Social Worker
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
BRIANNE NICOLE YESKEY PA-C
Physician Assistant
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
FARAAZ CHEKENI MD, PHD
Pediatrics
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775
AKSHAYDEEP SINGH
Nurse Practitioner (Psychiatric/Mental Health)
300 HARTLE CT
NAPA, CA 94559
Napa County (707) 254-1775

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 Merzenich's NPI number?

The NPI number for Karen Merzenich is 1003586363. It was assigned to this individual provider in the NPPES registry on September 17, 2021.

Where is Karen Merzenich located?

Karen Merzenich practices at 300 Hartle Ct, Napa, CA 94559. The listed phone number is (707) 254-1775.

What is Karen Merzenich's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Is Karen Merzenich enrolled in Medicare?

Yes. Karen Merzenich is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Karen Merzenich was last updated on September 17, 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.