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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.

DR. ALLISON M POURRIAHI MD
NPI 1336723360
Obstetrics & Gynecology in Chicago, IL

Active since May 06, 2021PECOS Enrolled
250 E SUPERIOR ST, CHICAGO, IL 60611(312) 926-2000(312) 427-0141 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 17, 2026, Dec 16, 2025, Aug 12, 2025 and 1 more (4 updates tracked since 2021).

About Dr. Allison M Pourriahi Md NPPES

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

DR. ALLISON M POURRIAHI MD (NPI 1336723360) is an individual obstetrics & gynecology provider in Chicago, Illinois, licensed in Illinois (036176189) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Brooklyn, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1336723360
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. ALLISON M POURRIAHICredential: MD
Location Address250 E SUPERIOR STChicago, IL 60611-2914
Mailing Address250 E Superior StChicago, IL 60611-2914 · (312) 926-2000 · Fax (312) 427-0141
Phone(312) 926-2000
Fax(312) 427-0141
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMay 6, 2021
Last NPPES UpdateJuly 17, 20264 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
✔ NPI 1336723360 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036176189
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
250 E SUPERIOR ST, Chicago, IL 60611
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Other Names 1

Former Name (1)Allison M Gerren Md

Secondary Practice Location 1

Location 1450 Clarkson Ave # Msc24Brooklyn, NY 11203-2012 · Phone (718) 270-2057 · Fax (718) 270-4122

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Allison M Pourriahi Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6709389885
PECOS Enrollment IDI20250913000111
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 60611 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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 20

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

DR. KIILA NICOLE JOHNSON M.D.
Obstetrics & Gynecology
250 E SUPERIOR ST, #5-2177
CHICAGO, IL 60611
Cook County (312) 472-4673
KAMILA STOKSIK DNP
Midwife
250 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 472-2900
CONNOR CHUN-KAI WANG MD
Obstetrics & Gynecology (Gynecologic Oncology)
250 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 926-2000
MS. MEGAN M. HINTON MS, CGC
Genetic Counselor, MS
250 E SUPERIOR ST, SUITE 05-2221
CHICAGO, IL 60611
Cook County (312) 472-4151
DR. LAURA MATTHEWS GLASER M.D.
Obstetrics & Gynecology
250 E SUPERIOR ST, #5-2177
CHICAGO, IL 60611
Cook County (312) 472-4673
REBECCA OCHS-MERCER
Obstetrics & Gynecology
250 E SUPERIOR ST
CHICAGO, IL 60611
Cook County (312) 926-2000
DR. JESSICA STOWE O'CONNELL M.D.
Obstetrics & Gynecology
250 E SUPERIOR ST, 03-2304
CHICAGO, IL 60611
Cook County (312) 472-4673
HANNAH GARRETT APN
Nurse Practitioner
250 E SUPERIOR ST, PRENTICE 05-2136
CHICAGO, IL 60611
Cook County (312) 472-4132

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 Allison Pourriahi's NPI number?

The NPI number for Allison Pourriahi is 1336723360. It was assigned to this individual provider in the NPPES registry on May 6, 2021. The provider is also known as Allison M Gerren MD.

Where is Allison Pourriahi located?

Allison Pourriahi practices at 250 E Superior St, Chicago, IL 60611. The listed phone number is (312) 926-2000.

What is Allison Pourriahi's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Allison Pourriahi enrolled in Medicare?

Yes. Allison Pourriahi is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Allison Pourriahi was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.