DR. JOHN ALLEN CLARKE HOUSTON MD
NPI 1184956161
Emergency Medicine in Chicago, IL
About Dr. John Allen Clarke Houston Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ALLEN CLARKE HOUSTON MD (NPI 1184956161) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (125056778) and active in the NPI registry since February 2010. He is enrolled in Medicare PECOS, is affiliated with Sentara Northern Virginia Medical Center, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John Allen Clarke Houston Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
17Medicare enrollment records show John Allen Houston reassigns Medicare billing to 17 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newport, TN 37821
- Reassigned Medicare billing, Virginia enrollment
- 679 clinicians in this Medicare group
Birmingham, AL 35205
- Reassigned Medicare billing, Florida enrollment
- 802 clinicians in this Medicare group
Westminster, MD 21157
- Reassigned Medicare billing, Maryland enrollment
- 729 clinicians in this Medicare group
Alexandria, VA 22310
- Reassigned Medicare billing, District of Columbia enrollment
- 135 clinicians in this Medicare group
Martin, SD 57551
- Reassigned Medicare billing, Texas enrollment
- 426 clinicians in this Medicare group
Plano, TX 75075
- Reassigned Medicare billing, Texas enrollment
- 454 clinicians in this Medicare group
Aventura, FL 33180
- Reassigned Medicare billing, Florida enrollment
- 1,912 clinicians in this Medicare group
Laredo, TX 78041
- Reassigned Medicare billing, Texas enrollment
- 86 clinicians in this Medicare group
Tucson, AZ 85746
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Ton Sells Hospital
- 349 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 114 clinicians in this Medicare group
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 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sentara Northern Virginia Medical Center
Acute Care Hospitals · Woodbridge, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
CHICAGO, IL 60612
CHICAGO, IL 60612
CHICAGO, IL 60612
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 John Allen Houston's NPI number?
The NPI number for John Allen Houston is 1184956161. It was assigned to this individual provider in the NPPES registry on February 2, 2010.
Where is John Allen Houston located?
John Allen Houston practices at 1900 W Polk St 10th Floor, Chicago, IL 60612. The listed phone number is (312) 864-0062.
What is John Allen Houston's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Allen Houston enrolled in Medicare?
Yes. John Allen Houston is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Allen Houston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Allen Houston reassigns Medicare benefits to 17 organizations: Emergency Coverage, LLC (Newport, TN), Paragon Contracting Services LLC (Birmingham, AL), Emergency Medicine Associates P.A., P.C. (Westminster, MD), Alexandria Springfield Emergency Physicians PC (Alexandria, VA), Pine Ridge Indian Health Service Hospital (Martin, SD) and 12 more organizations, listed in the Medicare section above. 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 John Allen Houston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Allen Houston accept?
Health plans from Blue Cross Blue Shield of Arizona, CHRISTUS Health Plan, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list John Allen Houston as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Allen Houston affiliated with any hospitals?
According to CMS data, John Allen Houston is affiliated with Sentara Northern Virginia Medical Center.
When was this NPI record last updated?
The NPPES record for John Allen Houston was last updated on February 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. John Allen Clarke Houston, MD · NPI 1184956161
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since February 2, 2010.
## Identity
- **NPI:** 1184956161 (Entity type: Individual)
- **Enumerated:** February 2, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 125056778 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1900 W POLK ST, 10TH FLOOR, Chicago, IL 60612-3723
- **Phone:** (312) 864-0062
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 17 organizations under Medicare reassignment (form CMS-855R): Emergency Coverage, LLC (NPI 1427005008, Newport, TN); Paragon Contracting Services LLC (NPI 1225071459, Birmingham, AL); Emergency Medicine Associates P.A., P.C. (NPI 1003771320, Westminster, MD); Alexandria Springfield Emergency Physicians PC (NPI 1720839764, Alexandria, VA); Pine Ridge Indian Health Service Hospital (NPI 1003208257, Martin, SD); and 12 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** February 2, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1184956161) · Data from the CMS NPPES public registry.