CLARISSA KATHERINE CALDERON-MEZA FNP-C
NPI 1700449162
Nurse Practitioner - Family in San Francisco, CA

Active since April 20, 2019PECOS EnrolledAccepts Medicare Assignment
840 IRVING ST, SAN FRANCISCO, CA 94122(888) 663-6331(415) 252-7176 Get Directions Write a Review

NPPES record last updated: June 20, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 20, 2025, Mar 17, 2025, Jan 25, 2022 and 2 more (5 updates tracked since 2019).

About Clarissa Katherine Calderon-meza Fnp-c NPPES

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

CLARISSA KATHERINE CALDERON-MEZA FNP-C (NPI 1700449162) is an individual family provider in San Francisco, California, licensed in California (95019721) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Round Rock, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1700449162
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameCLARISSA KATHERINE CALDERON-MEZACredential: FNP-C
Location Address840 IRVING STSan Francisco, CA 94122-2311
Mailing Address400 Parnassus AveSan Francisco, CA 94143-2202
Fax(415) 252-7176
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 20, 2019
Last NPPES UpdateJune 20, 20255 updates tracked since enumeration
NPPES CertifiedJune 20, 2025
NPI 1700449162 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
Licenses Licensed in CA · 95019721 Licensed in TX · AP141430
840 IRVING ST, San Francisco, CA 94122

Secondary Practice Location 1

Location 12051 Gattis School RdRound Rock, TX 78664-7441 · Phone (512) 324-4813

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Clarissa Katherine Calderon-meza Fnp-c 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 ID9830427939
PECOS Enrollment IDI20220131000518
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.

Areas of Expertise CMS Part B claims

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.
15 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94122 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 12

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

Nurse Practitioner
840 IRVING ST
SAN FRANCISCO, CA 94122
Physician Assistant
840 IRVING ST
SAN FRANCISCO, CA 94122
Physician Assistant
840 IRVING ST
SAN FRANCISCO, CA 94122
Nurse Practitioner (Family)
840 IRVING ST
SAN FRANCISCO, CA 94122
Nurse Practitioner
840 IRVING ST
SAN FRANCISCO, CA 94122
Physician Assistant
840 IRVING ST
SAN FRANCISCO, CA 94122
Internal Medicine (Geriatric Medicine)
840 IRVING ST
SAN FRANCISCO, CA 94122
Family Medicine
840 IRVING ST
SAN FRANCISCO, CA 94122

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 Clarissa Calderon-meza's NPI number?

The NPI number for Clarissa Calderon-meza is 1700449162. It was assigned to this individual provider in the NPPES registry on April 20, 2019.

Where is Clarissa Calderon-meza located?

Clarissa Calderon-meza practices at 840 Irving St, San Francisco, CA 94122. The listed phone number is (888) 663-6331.

What is Clarissa Calderon-meza's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Clarissa Calderon-meza enrolled in Medicare?

Yes. Clarissa Calderon-meza 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.

What insurance does Clarissa Calderon-meza accept?

Health plans from Oscar Insurance Company list Clarissa Calderon-meza as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Clarissa Calderon-meza was last updated on June 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.