1. Home
  2. Directory
  3. California
  4. El Cajon
  5. Counselor
  6. NPI Profile

MARCO ARNOLDO WILLIAMS AA
NPI 1306455274
Counselor - Addiction (Substance Use Disorder) in El Cajon, CA

Active since July 27, 2020
1400 N JOHNSON AVE STE 101, EL CAJON, CA 92020(760) 213-4591 Get Directions Write a Review

NPPES record last updated: July 27, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marco Arnoldo Williams Aa NPPES

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

MARCO ARNOLDO WILLIAMS AA (NPI 1306455274) is an individual addiction (substance use disorder) provider in El Cajon, California and active in the NPI registry since July 2020.

NPPES Registry Identity

NPI1306455274
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMARCO ARNOLDO WILLIAMSCredential: AA
Location Address1400 N JOHNSON AVE STE 101El Cajon, CA 92020-1651
Mailing Address1400 N Johnson Ave Ste 101El Cajon, CA 92020-1651 · (706) 213-4591
Phone(760) 213-4591
Sole ProprietorYes
Enumeration DateJuly 27, 2020
NPPES CertifiedJuly 27, 2020
✔ NPI 1306455274 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
1400 N JOHNSON AVE STE 101, El Cajon, CA 92020
Open in Google Maps ↗

Other Names 1

Professional Name (2)Marco Arnoldo Williams Aa

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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.

JENNIFER DIBELLA
Counselor (Addiction (Substance Use Disorder))
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 465-7303
MR. TREVOR PATRICK MAROSHEK
Counselor (Addiction (Substance Use Disorder))
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 691-8164
ADRIANNA CABALLERO AMFT 103139
Counselor (Mental Health)
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (760) 792-1362
KARINA VELA
Counselor (Addiction (Substance Use Disorder))
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 442-0277
SARAH ANN HOLADAY
Marriage & Family Therapist
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 442-0277
WINDA IVETTE ORTIZ
Counselor (Addiction (Substance Use Disorder))
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 442-0277
DAVID PADILLA
Counselor (Addiction (Substance Use Disorder))
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 442-0277
CRYSTAL ANN PHILLIPS SUDRC-1
Clinic/Center (Multi-Specialty)
1400 N JOHNSON AVE STE 101
EL CAJON, CA 92020
San Diego County (619) 440-4801

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 Marco Williams's NPI number?

The NPI number for Marco Williams is 1306455274. It was assigned to this individual provider in the NPPES registry on July 27, 2020. The provider is also known as Marco Arnoldo Williams Aa.

Where is Marco Williams located?

Marco Williams practices at 1400 N Johnson Ave Ste 101, El Cajon, CA 92020. The listed phone number is (760) 213-4591.

What is Marco Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Marco Williams was last updated on July 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.