Howard Haysom, M.D.
NPI 1659357283 · Emergency Medicine Physician · Pasadena, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Haysom, M.D. is a Emergency Medicine Physician provider in Pasadena, TX (NPI 1659357283).
Provider details
- NPI number
- 1659357283
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- E9689 (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
- 2005-12-15
- Last updated
- 2007-12-27
Frequently asked questions
- What is Howard Haysom's NPI number?
- Howard Haysom's National Provider Identifier (NPI) is 1659357283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Haysom's specialty?
- Howard Haysom is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Haysom located?
- Howard Haysom's practice location on file with NPPES is 4000 Spencer Hwy, Pasadena, TX 77504-1202.
- What is Howard Haysom's phone number?
- The practice phone number listed in the NPPES registry for Howard Haysom is (713) 359-2000.
- Does Howard Haysom accept Medicare?
- Howard Haysom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Haysom's NPI active?
- Yes — Howard Haysom's NPI (1659357283) is active in the NPPES registry as of the last update on 2007-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.