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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.

ASHLEY CHOU M.D.
NPI 1033409297
Internal Medicine in Houston, TX

Active since April 08, 2011PECOS Enrolled
1201 FANNIN ST STE 262, HOUSTON, TX 77002(866) 849-0692 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 7, 2026, Sep 30, 2026, Sep 25, 2026 and 6 more (9 updates tracked since 2017).

About Ashley Chou M.d. NPPES

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

ASHLEY CHOU M.D. (NPI 1033409297) is an individual internal medicine provider in Houston, Texas, licensed in Texas (T1794) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033409297
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameASHLEY CHOUCredential: M.D.
Location Address1201 FANNIN ST STE 262Houston, TX 77002-6943
Mailing AddressPo Box 211699Eagan, MN 55121-3699 · (866) 849-0692
Phone(866) 849-0692
Sole ProprietorNo
Enumeration DateApril 8, 2011
Last NPPES UpdateOctober 21, 20269 updates tracked since enumeration
NPPES CertifiedOctober 21, 2026
✔ NPI 1033409297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in TX · T1794✔ Licensed in MO · 2026050435✔ Licensed in DE · C1-0030241✔ Licensed in NE · CP2824✔ Licensed in WA · IMLC.MD.70186641✔ Licensed in LA · 354592✔ Licensed in KY · C6418✔ Licensed in IA · MD-57898✔ Licensed in IL · 036.137947✔ Licensed in PA · MD485244✔ Licensed in NC · 2026-05245✔ Licensed in GA · 112564✔ Licensed in HI · MD-27533✔ Licensed in OK · 50742✔ Licensed in UT · 14313384-1235
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1201 FANNIN ST STE 262, Houston, TX 77002
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Other Names 1

Former Name (1)Ashley Haddad Md

Other Identifiers 1

Other354163IL · Board Certification

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ashley Chou M.d. 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.

Medicare Billing Reassignments

5

Medicare enrollment records show Ashley Chou reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Devoted Medical Group Of Texas Inc
20 mi
Primary Care
20405 STATE HIGHWAY 249 STE 325
Houston, TX 77070
  • Reassigned Medicare billing, Texas enrollment
  • 122 clinicians in this Medicare group
NPI 1982202800 (617) 958-1611
Oak Street Health Of Texas, PLLC
234 mi
Primary Care
4115 E LANCASTER AVE
Fort Worth, TX 76103
  • Reassigned Medicare billing, Texas enrollment
  • 175 clinicians in this Medicare group
NPI 1497387419 (312) 733-9730
Osh-Il Physicians Group LLC
680 mi
Primary Care
2420 STATE ST
East Saint Louis, IL 62205
  • Reassigned Medicare billing, Illinois enrollment
  • 35 clinicians in this Medicare group
NPI 1265977698 (618) 318-8809
Oak Street Health Physicians Group, PC
933 mi
Primary Care
1715 E 95TH ST
Chicago, IL 60617
  • Reassigned Medicare billing, Illinois enrollment
  • 343 clinicians in this Medicare group
NPI 1083051643 (773) 768-4437
Osh - PA Physicians Group, PC
1,346 mi
Primary Care
3621 ARAMINGO AVE STE C5
Philadelphia, PA 19134
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 196 clinicians in this Medicare group
NPI 1811405533 (215) 444-7472

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
22 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77002 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
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.

MELISSA MENDOZA
Counselor (Professional)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (786) 600-3353
TAYLOR M WEBB PA-C
Physician Assistant
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (866) 849-0692
ALLIANT MOBILE SERVICES LLC
Non-emergency Medical Transport (VAN)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (844) 667-4562
MARILYN MINNIE CANALES APRN, FNP-C
Nurse Practitioner (Family)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (866) 846-0692
NEOPATH COUNSELING & WELLNESS LLC
Social Worker (Clinical)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (757) 839-3401
COMPASSION FIRST LLC
Clinic/Center (Adult Mental Health)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (832) 775-3106
PURVI M PATEL NP
Nurse Practitioner (Family)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (866) 849-0692
KIM NGAN VU APRN, FNP-C
Nurse Practitioner (Family)
1201 FANNIN ST STE 262
HOUSTON, TX 77002
Harris County (866) 849-0692

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 Ashley Chou's NPI number?

The NPI number for Ashley Chou is 1033409297. It was assigned to this individual provider in the NPPES registry on April 8, 2011. The provider is also known as Ashley Haddad MD.

Where is Ashley Chou located?

Ashley Chou practices at 1201 Fannin St Ste 262, Houston, TX 77002. The listed phone number is (866) 849-0692.

What is Ashley Chou's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ashley Chou enrolled in Medicare?

Yes. Ashley Chou is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ashley Chou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ashley Chou reassigns Medicare benefits to 5 organizations: Devoted Medical Group Of Texas Inc (Houston, TX), Oak Street Health Of Texas, PLLC (Fort Worth, TX), Osh-Il Physicians Group LLC (East Saint Louis, IL), Oak Street Health Physicians Group, PC (Chicago, IL) and Osh - PA Physicians Group, PC (Philadelphia, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ashley Chou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ashley Chou was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.