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Marissa Simko , FNP

Nurse Practitioner β€’ Berkeley, CA

Active NPI 1386217149 Individual Practitioner Female Practitioner
Practice location in NPPES

2344 6th St
Berkeley, CA 947102412

Call 0000000000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2344 6th St

Berkeley, CA 947102412

Telephone 0000000000
Organization at the Same NPPES Address or Phone
Lifelong Medical Care Facility NPI 1346439817

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021–2025.

Guide: How to read an Open Payments record

NPI first issued

2021

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Marissa Simko has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Marissa Simko as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Berkeley and California

33 active clinicians are listed under Nurse Practitioner with a practice address in Berkeley, CA (8,237 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Berkeley

27.3% of these 33 clinicians have the CMS telehealth indicator.

54.5% of these 33 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-10
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES CA 95027057

(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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

ORDER AND REFERRING ONLY - NURSE PRACTITIONER

Medicare Enrollment ID

I20250107003648

Enrollment State Jurisdiction

CA

PECOS Control ID

3072041888

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

12 listed
Nicole Baker , NP-C

Nurse Practitioner - Family

NPI 1013550482

Nurse Practitioner (Certified)

Dr. Jyothsna Bandaru , MD

Internal Medicine

NPI 1013362086

Doctor of Medicine (M.D.)

Dr. Catherine Fairgrieve Appel , DO

Emergency Medicine - Sports Medicine

NPI 1013256569

Doctor of Osteopathic Medicine (D.O.)

NPI 1013335405

Doctor of Medicine (M.D.)

Dana Howell , PMHNP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1013674084

Psychiatric-Mental Health Nurse Practitioner

Dr. Osakhuemen Ihenyen , MD

Psychiatry & Neurology - Psychiatry

NPI 1013437102

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

13 Historical Events
πŸ‘€
Provider Name / Credentials Updated March 10, 2026

Recorded as MARISSA SIMKO, FNP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 10, 2026

Nurse Practitioner (license number reported to NPPES: CA 95027057)

πŸ“
Updated Practice Location January 20, 2025

Registered at 2344 6TH ST, BERKELEY, CA 947102412 (Tel: 0000000000)

πŸ“
Updated Business Mailing Address January 20, 2025

Registered at 2344 6TH ST, BERKELEY, CA 947102412

πŸ“
Updated Practice Location May 17, 2024

Registered at 1179 N MCDOWELL BLVD, PETALUMA, CA 949546559 (Tel: 0000000000)

πŸ“
Updated Business Mailing Address May 17, 2024

Registered at 1179 N MCDOWELL BLVD, PETALUMA, CA 949546559

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 17, 2024

Clinic/Center

βœ…
NPI Profile Active July 20, 2021

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) July 20, 2021

Registered at 832 ADDISON ST, BERKELEY, CA 947102048 (Tel: 3106265473)

πŸ“
Business Mailing Address (Initial Record) July 20, 2021

Registered at 832 ADDISON ST, BERKELEY, CA 947102048 (Tel: 3106265473)

πŸ‘€
Provider Name / Credentials (Initial Record) July 20, 2021

Recorded as MARISSA SIMKO, DNP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 20, 2021

Registered Nurse (license number reported to NPPES: CA 95057552)

🟒
Initial NPI Registration & Enumeration July 20, 2021

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1386217149
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 20, 2021
Last Update: March 10, 2026
Sole Proprietor: No

Other Nurse Practitioners in Berkeley

All Nurse Practitioners in Berkeley

Mailing Address

2344 6th St

Berkeley, CA 947102412

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.