DR. CARL G CHAKMAKJIAN D.O.
NPI 1285675306
Internal Medicine - Medical Oncology in Waco, TX
About Dr. Carl G Chakmakjian D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARL G CHAKMAKJIAN D.O. (NPI 1285675306) is an individual medical oncology provider in Waco, Texas, licensed in Texas (L4879) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension Providence, and is a graduate of University Of North Texas Hsc, College Of Osteopathic Med (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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 G Chakmakjian D.o. 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 Chakmakjian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fort Worth, TX 76132
- Reassigned Medicare billing, Texas enrollment
- 1,054 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 48
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Providence
Acute Care Hospitals · Waco, TXParkview Regional Hospital
Acute Care Hospitals · Mexia, TXFreestone Medical Center
Acute Care Hospitals · Fairfield, TXLimestone Medical Center
Critical Access Hospitals · Groesbeck, TXCoryell Memorial Hospital
Critical Access Hospitals · Gatesville, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 76712 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WACO, TX 76712
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 Chakmakjian's NPI number?
The NPI number for Carl Chakmakjian is 1285675306. It was assigned to this individual provider in the NPPES registry on June 9, 2006.
Where is Carl Chakmakjian located?
Carl Chakmakjian practices at 1700 W Highway 6, Waco, TX 76712. The listed phone number is (254) 399-0741.
What is Carl Chakmakjian's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Carl Chakmakjian enrolled in Medicare?
Yes. Carl Chakmakjian 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 Chakmakjian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carl Chakmakjian reassigns Medicare benefits to Texas Oncology PA (Fort Worth, TX). 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 Chakmakjian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Carl Chakmakjian accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 9 other insurers list Carl Chakmakjian 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 Chakmakjian affiliated with any hospitals?
According to CMS data, Carl Chakmakjian is affiliated with Ascension Providence, Parkview Regional Hospital, Freestone Medical Center, Limestone Medical Center and Coryell Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Carl Chakmakjian was last updated on February 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.