Lois Fiala, MD
NPI 1386607596 · Vascular Surgery Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lois Fiala, MD is a Vascular Surgery Physician provider in San Antonio, TX (NPI 1386607596).
Provider details
- NPI number
- 1386607596
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- L2885 (TX)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
528 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 98 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $122 |
| Ultrasound of One Leg Arteries Or Artery Grafts93926 | 52 | $121 |
| Ultrasound Study of Arm and Leg Arteries93922 | 48 | $60 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 42 | $173 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 38 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 100 | 35 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 56 | 53 |
| Apixabanbrand: Eliquis | 25 | — |
| Gabapentin | 17 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$319 across 21 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 (1)
- 610 N Main AveSan Antonio, TX 78205-1204Phone: (210) 420-8671Fax: (210) 899-1958
Registry dates
- Enumerated
- 2006-04-10
- Last updated
- 2024-06-12
- Certified
- 2024-06-12
Frequently asked questions
- What is Lois Fiala's NPI number?
- Lois Fiala's National Provider Identifier (NPI) is 1386607596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lois Fiala's specialty?
- Lois Fiala is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Lois Fiala located?
- Lois Fiala's practice location on file with NPPES is 718 Lexington Ave Ste 102, San Antonio, TX 78212-4790.
- What is Lois Fiala's phone number?
- The practice phone number listed in the NPPES registry for Lois Fiala is (210) 420-8671.
- Does Lois Fiala accept Medicare?
- Lois Fiala is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lois Fiala's NPI active?
- Yes — Lois Fiala's NPI (1386607596) is active in the NPPES registry as of the last update on 2024-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.