Gemma Alger, O.D.
NPI 1386751519 · Optometrist · Bastrop, TX
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gemma Alger, O.D. is a Optometrist provider in Bastrop, TX (NPI 1386751519).
Provider details
- NPI number
- 1386751519
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6057T (TX)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
74 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Photography of the Retina92250 | 29 | $33 |
| Exam of Visual Field With Limited Testing92081 | 23 | $25 |
| Established Patient Complete Exam of Visual System92014 | 22 | $108 |
Typical Medicare-allowed amounts for these services range $25–$108 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2012-08-31
Frequently asked questions
- What is Gemma Alger's NPI number?
- Gemma Alger's National Provider Identifier (NPI) is 1386751519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gemma Alger's specialty?
- Gemma Alger is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gemma Alger located?
- Gemma Alger's practice location on file with NPPES is 488 Highway 71 W, Bastrop, TX 78602-3731.
- What is Gemma Alger's phone number?
- The practice phone number listed in the NPPES registry for Gemma Alger is (512) 303-2861.
- Does Gemma Alger accept Medicare?
- Gemma Alger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gemma Alger's NPI active?
- Yes — Gemma Alger's NPI (1386751519) is active in the NPPES registry as of the last update on 2012-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.