GISELA MARRERO RIVERA
NPI 1851707558
Pathology - Clinical Pathology in San Francisco, CA

Q: What is Gisela Marrero Rivera's NPI number?

The NPI number for Gisela Marrero Rivera is 1851707558. It was assigned to this individual provider in the NPPES registry on July 2, 2014.

Q: What is Gisela Marrero Rivera's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology, with taxonomy code 207ZC0006X.

Active since July 02, 2014PECOS EnrolledAccepts Medicare Assignment

185 BERRY ST STE 290, SAN FRANCISCO, CA 94107(415) 353-1667(415) 353-1106 Get Directions Write a Review

NPPES record last updated: March 27, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Gisela Marrero Rivera NPPES

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

GISELA MARRERO RIVERA (NPI 1851707558) is an individual clinical pathology provider in San Francisco, California, licensed in California (A172593) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Juan, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1851707558

Entity TypeIndividualFemale

Primary Taxonomy207ZC0006X

Provider Legal NameGISELA MARRERO RIVERA

Location Address185 BERRY ST STE 290San Francisco, CA 94107-1773

Mailing Address185 Berry St Ste 290San Francisco, CA 94107-1773 · (415) 353-1667 · Fax (415) 353-1106

Phone(415) 353-1667

Fax(415) 353-1106

Sole ProprietorNo

Medical School CMSOtherGraduated 2014

Enumeration DateJuly 2, 2014

Last NPPES UpdateMarch 27, 2025

NPPES CertifiedMarch 27, 2025

✔ NPI 1851707558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPathology · Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZC0006X

License✔ Licensed in CA · A172593

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Also ListedPathology · Blood Banking & Transfusion MedicineTaxonomy 207ZB0001X · License A172593 (CA)

Also ListedPediatricsTaxonomy 208000000X · License 00000 (PR)

Also ListedPediatrics · Pediatric Hematology-OncologyTaxonomy 2080P0207X · License A172593 (CA)

185 BERRY ST STE 290, San Francisco, CA 94107

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Secondary Practice Location 1

Location 1University District Hospital Puerto Rico Medical Center, Bo. MonacillosSan Juan, PR 00935-0001 · Phone (787) 754-0101

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

Gisela Marrero Rivera 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 ID9638692114

PECOS Enrollment IDI20250325002886

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 94107 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

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 11

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

DR. NIKKA YU KHORSANDI MD, MPH

Pathology (Clinical Pathology/Laboratory Medicine)