Stephen Greefkens, D.O.
NPI 1649246356 · Developmental - Behavioral Pediatrics Physician · Fort Sam Houston, TX
Stephen Greefkens, D.O. is a Developmental - Behavioral Pediatrics Physician provider in Fort Sam Houston, TX (NPI 1649246356).
Provider details
- NPI number
- 1649246356
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- License
- 20A5077 (CA)
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
- 2006-02-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Greefkens's NPI number?
- Stephen Greefkens's National Provider Identifier (NPI) is 1649246356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Greefkens's specialty?
- Stephen Greefkens is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Greefkens located?
- Stephen Greefkens's practice location on file with NPPES is 3851 Roger Brooke Dr, Fort Sam Houston, TX 78234-4501.
- What is Stephen Greefkens's phone number?
- The practice phone number listed in the NPPES registry for Stephen Greefkens is (210) 916-0765.
- Is Stephen Greefkens's NPI active?
- Yes — Stephen Greefkens's NPI (1649246356) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.