John Gianopoulos, MD
NPI 1467426502 · Maternal & Fetal Medicine Physician · Austin, TX
John Gianopoulos, MD is a Maternal & Fetal Medicine Physician provider in Austin, TX (NPI 1467426502).
Provider details
- NPI number
- 1467426502
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36057879 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-02-15
- Last updated
- 2015-01-30
Frequently asked questions
- What is John Gianopoulos's NPI number?
- John Gianopoulos's National Provider Identifier (NPI) is 1467426502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gianopoulos's specialty?
- John Gianopoulos is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Gianopoulos located?
- John Gianopoulos's practice location on file with NPPES is 601 E 15th St, Austin, TX 78701-1930.
- What is John Gianopoulos's phone number?
- The practice phone number listed in the NPPES registry for John Gianopoulos is (512) 324-7346.
- Is John Gianopoulos's NPI active?
- Yes — John Gianopoulos's NPI (1467426502) is active in the NPPES registry as of the last update on 2015-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.