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MONICA GUILLEN
NPI 1932921244
Specialist in Union City, CA

Active since October 28, 2024
33456 ALVARADO NILES RD, UNION CITY, CA 94587(510) 675-0600 Get Directions Write a Review

NPPES record last updated: October 28, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Monica Guillen NPPES

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

MONICA GUILLEN (NPI 1932921244) is an individual specialist in Union City, California and active in the NPI registry since October 2024.

NPPES Registry Identity

NPI1932921244
Entity TypeIndividualFemale
Primary Taxonomy174400000X
Provider Legal NameMONICA GUILLEN
Location Address33456 ALVARADO NILES RDUnion City, CA 94587-3110
Mailing Address5674 Stoneridge Dr Ste 207Pleasanton, CA 94588-8592 · (925) 520-0005
Phone(510) 675-0600
Sole ProprietorNo
Enumeration DateOctober 28, 2024
NPPES CertifiedOctober 28, 2024
✔ NPI 1932921244 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
33456 ALVARADO NILES RD, Union City, CA 94587
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Other Providers at the Same Location NPPES 6

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

SARAH ELIZABETH WICKMAN EZELL APRN
Nurse Practitioner
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600
JESSICA HAZEL LOUIE RN, NP
Nurse Practitioner (Psychiatric/Mental Health)
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600
AUBREY MARTINEZ
Specialist
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600
HIAWATHA HARRIS, M.D., INC.
Counselor (Mental Health)
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600
RICHARD COLIN ANDERSON PA
Physician Assistant
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600
YVONNE MARIE MOSTAJO NGUYEN RN
Registered Nurse
33456 ALVARADO NILES RD
UNION CITY, CA 94587
Alameda County (510) 675-0600

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 Monica Guillen's NPI number?

The NPI number for Monica Guillen is 1932921244. It was assigned to this individual provider in the NPPES registry on October 28, 2024.

Where is Monica Guillen located?

Monica Guillen practices at 33456 Alvarado Niles Rd, Union City, CA 94587. The listed phone number is (510) 675-0600.

What is Monica Guillen's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Monica Guillen was last updated on October 28, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.