Gerson Alvarez, M.D.
NPI 1821253840 · Diagnostic Radiology Physician · Cayey, PR
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerson Alvarez, M.D. is a Diagnostic Radiology Physician provider in Cayey, PR (NPI 1821253840).
Provider details
- NPI number
- 1821253840
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301091811 (MI)
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
17 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
103 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 72 | $8 |
| X-Ray of Chest, 2 Views71046 | 31 | $10 |
Typical Medicare-allowed amounts for these services range $8–$10 (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
- 2008-07-21
- Last updated
- 2015-06-22
Frequently asked questions
- What is Gerson Alvarez's NPI number?
- Gerson Alvarez's National Provider Identifier (NPI) is 1821253840, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerson Alvarez's specialty?
- Gerson Alvarez is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gerson Alvarez located?
- Gerson Alvarez's practice location on file with NPPES is Carr 14 Km 72.2 Bo Sector Lomas, Cayey, PR 00734.
- What is Gerson Alvarez's phone number?
- The practice phone number listed in the NPPES registry for Gerson Alvarez is (787) 263-0644.
- Does Gerson Alvarez accept Medicare?
- Gerson Alvarez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerson Alvarez's NPI active?
- Yes — Gerson Alvarez's NPI (1821253840) is active in the NPPES registry as of the last update on 2015-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.