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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. PARKER RICHARD NISHKIAN SR.
NPI 1689326571
Counselor - Addiction (Substance Use Disorder) in Stockton, CA

Active since January 21, 2022
1839 S EL DORADO ST, STOCKTON, CA 95206(209) 463-0872 Get Directions Write a Review

NPPES record last updated: October 26, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 26, 2026, Jan 21, 2022 (2 updates tracked since 2022).

About Mr. Parker Richard Nishkian Sr. NPPES

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

MR. PARKER RICHARD NISHKIAN SR. (NPI 1689326571) is an individual addiction (substance use disorder) provider in Stockton, California and active in the NPI registry since January 2022.

NPPES Registry Identity

NPI1689326571
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMR. PARKER RICHARD NISHKIAN SR.
Location Address1839 S EL DORADO STStockton, CA 95206-2025
Mailing Address1839 S El Dorado StStockton, CA 95206-2025 · (209) 463-0872
Phone(209) 463-0872
Sole ProprietorNo
Enumeration DateJanuary 21, 2022
Last NPPES UpdateOctober 26, 20262 updates tracked since enumeration
NPPES CertifiedOctober 26, 2026
✔ NPI 1689326571 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
1839 S EL DORADO ST, Stockton, CA 95206
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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.

CYRUS YANOS FNP
Nurse Practitioner
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 466-4200
ANDREA CARRUTH
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872
ARIELLE RAYANA HARRELL
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872
CIERRA DENISE JONES
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872
HUTCHISON PHARMACIES INC
Pharmacy (Community/Retail Pharmacy)
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 466-2439
MR. THEODORE EDWARD ANDERSON IV
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872
AMANDA MARIE BENITEZ
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872
DAISY MARIE GUZMAN
Counselor (Addiction (Substance Use Disorder))
1839 S EL DORADO ST
STOCKTON, CA 95206
San Joaquin County (209) 463-0872

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 Parker Nishkian's NPI number?

The NPI number for Parker Nishkian is 1689326571. It was assigned to this individual provider in the NPPES registry on January 21, 2022.

Where is Parker Nishkian located?

Parker Nishkian practices at 1839 S El Dorado St, Stockton, CA 95206. The listed phone number is (209) 463-0872.

What is Parker Nishkian'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 Parker Nishkian was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.