Ann Bass, M.D.
NPI 1104925171 · Neurology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Bass, M.D. is a Neurology Physician provider in San Antonio, TX (NPI 1104925171).
Provider details
- NPI number
- 1104925171
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- J7748 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,003 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 314 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 289 | $86 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 94 | $25 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 84 | $159 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 48 | $118 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 170 | 46 |
| Baclofen | 150 | 43 |
| Duloxetine Hcl | 145 | 33 |
| Pregabalin | 92 | 34 |
| Dalfampridinebrand: Dalfampridine Er | 84 | 18 |
| Ofatumumabbrand: Kesimpta Pen | 80 | — |
| Tizanidine Hcl | 79 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$199,482 across 356 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
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2009-11-19
Frequently asked questions
- What is Ann Bass's NPI number?
- Ann Bass's National Provider Identifier (NPI) is 1104925171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Bass's specialty?
- Ann Bass is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Bass located?
- Ann Bass's practice location on file with NPPES is 1314 E Sonterra Blvd, San Antonio, TX 78258-4278.
- What is Ann Bass's phone number?
- The practice phone number listed in the NPPES registry for Ann Bass is (210) 490-0016.
- Does Ann Bass accept Medicare?
- Ann Bass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Bass's NPI active?
- Yes — Ann Bass's NPI (1104925171) is active in the NPPES registry as of the last update on 2009-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.