DR. CARL GUILLAUME M.D.
NPI 1528098118
Internal Medicine - Gastroenterology in Bronx, NY
About Dr. Carl Guillaume M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARL GUILLAUME M.D. (NPI 1528098118) is an individual gastroenterology provider in Bronx, New York, licensed in New York (210261) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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 Guillaume 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 Reassignments
3Medicare enrollment records show Carl Guillaume reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bronx, NY 10458
- Reassigned Medicare billing, New York enrollment
- 142 clinicians in this Medicare group
Bronx, NY 10453
- Reassigned Medicare billing, New York enrollment
- 98 clinicians in this Medicare group
Elmhurst, NY 11373
- Reassigned Medicare billing, New York enrollment
- 2 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10457 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.
BRONX, NY 10457
BRONX, NY 10457
BRONX, NY 10457
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 Guillaume's NPI number?
The NPI number for Carl Guillaume is 1528098118. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Carl Guillaume located?
Carl Guillaume practices at 4422 3rd Ave, Bronx, NY 10457. The listed phone number is (718) 960-6205.
What is Carl Guillaume's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Carl Guillaume enrolled in Medicare?
Yes. Carl Guillaume 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 Carl Guillaume's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carl Guillaume reassigns Medicare benefits to 3 organizations: Union Community Health Center, Inc. (Bronx, NY), Morris Heights Health Center, Inc. (Bronx, NY) and Medical Associates, P.C. (Elmhurst, NY). 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 Carl Guillaume'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 Carl Guillaume was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 Guillaume, M.D. · NPI 1528098118
Gastroenterology physician in Bronx, New York. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1528098118 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 210261 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 4422 3RD AVE, Bronx, NY 10457-2545
- **Phone:** (718) 960-6205
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Union Community Health Center, Inc. (NPI 1437255155, Bronx, NY); Morris Heights Health Center, Inc. (NPI 1184694291, Bronx, NY); Medical Associates, P.C. (NPI 1659539781, Elmhurst, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 1992
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified 58N881 (NY); Medicaid 01947988 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1528098118) · Data from the CMS NPPES public registry.