Joanna Gernsback, MD
NPI 1215252440 · Neurological Surgery Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Gernsback, MD is a Neurological Surgery Physician provider in San Antonio, TX (NPI 1215252440).
Provider details
- NPI number
- 1215252440
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036.145491 (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 tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,605 across 16 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 305 W Jackson St Ste 400Carbondale, IL 62901-1474Phone: (618) 351-4972Fax: (618) 351-4973
- 225 E Chicago AveChicago, IL 60611Phone: (312) 227-4220
- 1000 N Lincoln Blvd # 4000Oklahoma City, OK 73104-3252Phone: (405) 271-4912Fax: (405) 271-3091
- 111 Colchester AveFletcher 309, Mailstop 201fl3Burlington, VT 05401-1473Phone: (802) 847-2700Fax: (802) 847-9528
Registry dates
- Enumerated
- 2010-03-31
- Last updated
- 2024-05-07
- Certified
- 2024-05-07
Frequently asked questions
- What is Joanna Gernsback's NPI number?
- Joanna Gernsback's National Provider Identifier (NPI) is 1215252440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Gernsback's specialty?
- Joanna Gernsback is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Gernsback located?
- Joanna Gernsback's practice location on file with NPPES is 8300 Floyd Curl Dr, San Antonio, TX 78229-3931.
- What is Joanna Gernsback's phone number?
- The practice phone number listed in the NPPES registry for Joanna Gernsback is (210) 450-4995.
- Does Joanna Gernsback accept Medicare?
- Joanna Gernsback is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Gernsback's NPI active?
- Yes — Joanna Gernsback's NPI (1215252440) is active in the NPPES registry as of the last update on 2024-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.