Mario Eres, FNP-BC
NPI 1477559821 · Family Nurse Practitioner · San Antonio, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mario Eres, FNP-BC is a Family Nurse Practitioner provider in San Antonio, TX (NPI 1477559821).
Provider details
- NPI number
- 1477559821
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- AP109728 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 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
419 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $104 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 65 | $73 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 57 | $9 |
| Automated Urinalysis Test81003 | 34 | $2 |
| Hemoglobin A1c Level83036 | 31 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 19 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 66 | 42 |
| Atorvastatin Calcium | 57 | 25 |
| Prednisone | 52 | 43 |
| Lisinopril | 44 | 16 |
| Hydrochlorothiazide | 42 | 14 |
| Montelukast Sodium | 40 | 13 |
| Celecoxib | 40 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-21
- Last updated
- 2024-12-04
- Certified
- 2024-11-22
Frequently asked questions
- What is Mario Eres's NPI number?
- Mario Eres's National Provider Identifier (NPI) is 1477559821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Eres's specialty?
- Mario Eres is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mario Eres located?
- Mario Eres's practice location on file with NPPES is 8210 Callaghan Rd, San Antonio, TX 78230-4775.
- What is Mario Eres's phone number?
- The practice phone number listed in the NPPES registry for Mario Eres is (210) 233-7000.
- Does Mario Eres accept Medicare?
- Mario Eres is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mario Eres's NPI active?
- Yes — Mario Eres's NPI (1477559821) is active in the NPPES registry as of the last update on 2024-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.