Fernando Gerena Nieves, M.D ,D.A.B.A ,F.ABPM
NPI 1548245939 · Pain Medicine (Anesthesiology) Physician · Catano, PR
Enrolled with Medicare as Practitioner - Interventional Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fernando Gerena Nieves, M.D ,D.A.B.A ,F.ABPM is a Pain Medicine (Anesthesiology) Physician provider in Catano, PR (NPI 1548245939).
Provider details
- NPI number
- 1548245939
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D ,D.A.B.A ,F.ABPM
- Sex
- Male
- Sole proprietor
- Yes
- License
- 12238 (CT)
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 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
341 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 200 | $89 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 38 | $243 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 34 | $110 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Each Additional Level64484 | 26 | $109 |
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tizanidine Hcl | 507 | 222 |
| Gabapentin | 357 | 129 |
| Tramadol Hcl | 263 | 72 |
| Etodolac | 253 | 160 |
| Clonazepam | 230 | 147 |
| Meloxicam | 196 | 127 |
| Sulindac | 109 | 63 |
| Baclofen | 101 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-08
- Last updated
- 2018-11-01
Frequently asked questions
- What is Fernando Gerena Nieves's NPI number?
- Fernando Gerena Nieves's National Provider Identifier (NPI) is 1548245939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fernando Gerena Nieves's specialty?
- Fernando Gerena Nieves is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Fernando Gerena Nieves located?
- Fernando Gerena Nieves's practice location on file with NPPES is 65 Calle Los Mangos, Catano, PR 00962-5830.
- What is Fernando Gerena Nieves's phone number?
- The practice phone number listed in the NPPES registry for Fernando Gerena Nieves is (787) 641-9871.
- Does Fernando Gerena Nieves accept Medicare?
- Fernando Gerena Nieves is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fernando Gerena Nieves's NPI active?
- Yes — Fernando Gerena Nieves's NPI (1548245939) is active in the NPPES registry as of the last update on 2018-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.