DR. CARL F BLATT JR. M.D.
NPI 1447292123
Internal Medicine - Gastroenterology in Washington, MO
About Dr. Carl F Blatt Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARL F BLATT JR. M.D. (NPI 1447292123) is an individual gastroenterology provider in Washington, Missouri, licensed in Missouri (R3D62) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Washington, and is a graduate of Georgetown University School Of Medicine (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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. Carl F Blatt Jr. M.d. 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 Reassignment
Medicare enrollment records show Carl Blatt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 69 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Washington
Acute Care Hospitals · Washington, MOMercy Hospital Lebanon
Acute Care Hospitals · Lebanon, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63090 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.
WASHINGTON, MO 63090
WASHINGTON, MO 63090
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 Carl Blatt's NPI number?
The NPI number for Carl Blatt is 1447292123. It was assigned to this individual provider in the NPPES registry on June 10, 2006.
Where is Carl Blatt located?
Carl Blatt practices at 901 Patients First Dr, Washington, MO 63090. The listed phone number is (636) 239-7344.
What is Carl Blatt's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Carl Blatt enrolled in Medicare?
Yes. Carl Blatt 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 organization bills Medicare for Carl Blatt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carl Blatt reassigns Medicare benefits to Mercy Clinic Gastroenterology, LLC (Saint Louis, MO). The 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 Carl Blatt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Carl Blatt accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Carl Blatt 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 Carl Blatt affiliated with any hospitals?
According to CMS data, Carl Blatt is affiliated with Mercy Hospital Washington and Mercy Hospital Lebanon.
When was this NPI record last updated?
The NPPES record for Carl Blatt was last updated on January 18, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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. Carl F Blatt Jr., M.D. · NPI 1447292123
Gastroenterology physician in Washington, Missouri. Individual provider, active in the CMS NPPES registry since June 10, 2006.
## Identity
- **NPI:** 1447292123 (Entity type: Individual)
- **Enumerated:** June 10, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** R3D62 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 PATIENTS FIRST DR, Washington, MO 63090-4700
- **Phone:** (636) 239-7344 · **Fax:** (636) 239-9436
## 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:** Mercy Clinic Gastroenterology, LLC (NPI 1528295334, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 1980
## Record status
- **NPPES last updated:** January 18, 2012
- **Other identifiers:** Other 100013864; Medicare UPIN A13879; Medicaid 207847906 (MO); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1447292123) · Data from the CMS NPPES public registry.