Dennis Tweedy, M.D.
NPI 1205874948 · Hematology & Oncology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Tweedy, M.D. is a Hematology & Oncology Physician provider in Austin, TX (NPI 1205874948).
Provider details
- NPI number
- 1205874948
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H7840 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
56 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 24 | $331 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 18 | $121 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 14 | $59 |
Typical Medicare-allowed amounts for these services range $59–$331 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2018-05-10
Frequently asked questions
- What is Dennis Tweedy's NPI number?
- Dennis Tweedy's National Provider Identifier (NPI) is 1205874948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Tweedy's specialty?
- Dennis Tweedy is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Tweedy located?
- Dennis Tweedy's practice location on file with NPPES is 4101 James Casey St, Austin, TX 78745-1110.
- What is Dennis Tweedy's phone number?
- The practice phone number listed in the NPPES registry for Dennis Tweedy is (512) 419-9733.
- Does Dennis Tweedy accept Medicare?
- Dennis Tweedy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Tweedy's NPI active?
- Yes — Dennis Tweedy's NPI (1205874948) is active in the NPPES registry as of the last update on 2018-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.