OrganizationActive
Anderson Guderian Medical Association
NPI 1659403418 · Family Medicine Physician · League City, TX
Provider details
- NPI number
- 1659403418
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gerard Guderian, Owner(281) 557-4404
- License
- J8561 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
1100 Gulf Fwy S
Siute 230
League City, TX 77573-5153
Phone: (281) 557-4404
Fax: (281) 557-4443
Street-level locationGet directions
Mailing address
1100 Gulf Fwy S
League City, TX 77573-5153
Other names (DBA / former)
- Doing business as
- Calder Urgent Care
Registry dates
- Enumerated
- 2007-03-09
- Last updated
- 2010-09-13
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.