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

DOUGLAS L. ALLEN MHP
NPI 1134423742
Counselor - Addiction (Substance Use Disorder) in Chicago, IL

Q: What is Douglas Allen's NPI number?

The NPI number for Douglas Allen is 1134423742. It was assigned to this individual provider in the NPPES registry on December 23, 2010.

Q: What is Douglas Allen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Douglas Allen was last updated on July 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.

Active since December 23, 2010PECOS Enrolled

53 W JACKSON BLVD # 1210, CHICAGO, IL 60604(312) 912-7008(312) 533-2842 Get Directions Write a Review

NPPES record last updated: July 25, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 25, 2026, Apr 14, 2020, Apr 10, 2018 (3 updates tracked since 2018).

On this page

About Douglas L. Allen Mhp NPPES

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

DOUGLAS L. ALLEN MHP (NPI 1134423742) is an individual addiction (substance use disorder) provider in Chicago, Illinois, licensed in Illinois (21082) and active in the NPI registry since December 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134423742

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameDOUGLAS L. ALLENCredential: MHP

Location Address53 W JACKSON BLVD # 1210Chicago, IL 60604-3606

Mailing Address226 W Ontario StChicago, IL 60654-3619 · (708) 728-5470

Phone(312) 912-7008

Fax(312) 533-2842

Sole ProprietorNo

Enumeration DateDecember 23, 2010

Last NPPES UpdateJuly 25, 20263 updates tracked since enumeration

NPPES CertifiedJuly 25, 2026

✔ NPI 1134423742 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in IL · 21082

Also ListedBehavior AnalystTaxonomy 103K00000X

53 W JACKSON BLVD # 1210, Chicago, IL 60604

Open in Google Maps ↗

Other Identifiers 1

Medicaid7512-0001IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Douglas L. Allen Mhp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Other Providers at the Same Location NPPES 3

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

ALLEN'S FAMILY COUNSELING CENTER, INC.

Clinic/Center (Rehabilitation, Substance Use Disorder)

53 W JACKSON BLVD # 1210
CHICAGO, IL 60604

Cook County (708) 728-5470

ALLEN'S FAMILY COUNSELING

Clinic/Center (Multi-Specialty)

53 W JACKSON BLVD # 1210
CHICAGO, IL 60604

Cook County (312) 912-7008

ALLEN'S FAMILY COUNSELING CENTER, INC.

Clinic/Center (Mental Health (Including Community Mental Health Center))

53 W JACKSON BLVD # 1210
CHICAGO, IL 60604

Cook County (312) 912-7008

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 Douglas Allen's NPI number?

The NPI number for Douglas Allen is 1134423742. It was assigned to this individual provider in the NPPES registry on December 23, 2010.

Where is Douglas Allen located?

Douglas Allen practices at 53 W Jackson Blvd # 1210, Chicago, IL 60604. The listed phone number is (312) 912-7008.

What is Douglas Allen's specialty?

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

Is Douglas Allen enrolled in Medicare?

Yes. Douglas Allen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Douglas Allen was last updated on July 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.