Carl Chakmakjian, D.O.
NPI 1285675306 · Medical Oncology Physician · Waco, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carl Chakmakjian, D.O. is a Medical Oncology Physician provider in Waco, TX (NPI 1285675306).
Provider details
- NPI number
- 1285675306
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- L4879 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,635 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 858 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 731 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 720 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 498 | $16 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 271 | $117 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment Session |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 172 | 40 |
| Apixabanbrand: Eliquis | 116 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 78 | 28 |
| Gabapentin | 71 | 18 |
| Dexamethasone | 59 | 23 |
| Hydroxyurea | 58 | 15 |
| Lenalidomidebrand: Revlimid | 52 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,851 across 48 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2008-02-18
Frequently asked questions
- What is Carl Chakmakjian's NPI number?
- Carl Chakmakjian's National Provider Identifier (NPI) is 1285675306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carl Chakmakjian's specialty?
- Carl Chakmakjian is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Carl Chakmakjian located?
- Carl Chakmakjian's practice location on file with NPPES is 1700 W Highway 6, Waco, TX 76712-2452.
- What is Carl Chakmakjian's phone number?
- The practice phone number listed in the NPPES registry for Carl Chakmakjian is (254) 399-0741.
- Does Carl Chakmakjian accept Medicare?
- Carl Chakmakjian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carl Chakmakjian's NPI active?
- Yes — Carl Chakmakjian's NPI (1285675306) is active in the NPPES registry as of the last update on 2008-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.