Charles Haas, MD
NPI 1821095266 · Hematology & Oncology Physician · Tyler, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Haas, MD is a Hematology & Oncology Physician provider in Tyler, TX (NPI 1821095266).
Provider details
- NPI number
- 1821095266
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- J1441 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-30
- Last updated
- 2007-11-14
Frequently asked questions
- What is Charles Haas's NPI number?
- Charles Haas's National Provider Identifier (NPI) is 1821095266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Haas's specialty?
- Charles Haas is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Haas located?
- Charles Haas's practice location on file with NPPES is 825 Medical Dr, Tyler, TX 75701-2143.
- What is Charles Haas's phone number?
- The practice phone number listed in the NPPES registry for Charles Haas is (903) 597-2273.
- Does Charles Haas accept Medicare?
- Charles Haas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Haas's NPI active?
- Yes — Charles Haas's NPI (1821095266) is active in the NPPES registry as of the last update on 2007-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.