Guillermo Villarmarzo-Garcia, MD
NPI 1518928738 · Anatomic Pathology & Clinical Pathology Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo Villarmarzo-Garcia, MD is a Anatomic Pathology & Clinical Pathology Physician provider in San Juan, PR (NPI 1518928738).
Provider details
- NPI number
- 1518928738
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4780 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
324 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) |
|---|---|---|
| Evaluation of Fine Needle Aspirate88172 | 76 | $33 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 72 | $66 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, First Growth10005 | 49 | $70 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 38 | $46 |
| Pap Test, Evaluation of Fine Needle Aspirate, Immediate, Each Additional Evaluation Episode88177 | 31 | $20 |
| Fine Needle Aspiration Biopsy Using Ultrasound Guidance, Each Additional Growth10006 | 27 | $48 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2020-01-29
- Certified
- 2020-01-29
Frequently asked questions
- What is Guillermo Villarmarzo-Garcia's NPI number?
- Guillermo Villarmarzo-Garcia's National Provider Identifier (NPI) is 1518928738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Villarmarzo-Garcia's specialty?
- Guillermo Villarmarzo-Garcia is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Guillermo Villarmarzo-Garcia located?
- Guillermo Villarmarzo-Garcia's practice location on file with NPPES is 300 Ave Manuel Domenech, San Juan, PR 00918-3509.
- What is Guillermo Villarmarzo-Garcia's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Villarmarzo-Garcia is (787) 765-7320.
- Does Guillermo Villarmarzo-Garcia accept Medicare?
- Guillermo Villarmarzo-Garcia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guillermo Villarmarzo-Garcia's NPI active?
- Yes — Guillermo Villarmarzo-Garcia's NPI (1518928738) is active in the NPPES registry as of the last update on 2020-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.