NPI registry status
Active
2026 NPPES data Personal Emergency Response Attendant NPI 1801811286 M.D.
Verify on CMS → Fermin Hernandez, M.D.
Personal Emergency Response Attendant in Toa Baja, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 830 in Personal Emergency Response Attendant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 827 beneficiaries · Personal Emergency Response Attendant avg: 996
Generic prescribing
92%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Fermin Hernandez, M.D. filed 1,110 Medicare Part D claims in 2023 as a Personal Emergency Response Attendant in Toa Baja, Puerto Rico, prescribing 92% generic.
- 1K
- Part D claims, 2023
- 92%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Fermin Hernandez, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,110 Top 23% higher than 77% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Fermin Hernandez, M.D.?
Quality data not reportedPrimary specialty
Personal Emergency Response Attendant
Medicare Part D claims
1,110 11% vs specialty avg
Specialty distribution in Puerto Rico
How Personal Emergency Response Attendant compares to other specialties among Puerto Rico providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Personal Emergency Response Attendant. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Fermin Hernandez, M.D. appears in the CMS NPPES registry as a Personal Emergency Response Attendant provider holding M.D. credentials at 8064 PASEO LAS GAVIOTAS URB. CAMINO DEL MAR, Toa Baja, PR, 00949, with a listed phone of (787) 784-8139. NPI 1801811286 was issued on 07/13/2006.
Medicare Part D records for calendar year 2023 show 1,110 prescription claims written by this provider, covering 827 Medicare beneficiaries and totaling roughly $20K in drug spend, split 4% brand-name and 92% generic by claim count, with an opioid prescribing rate of 3.9%.
Personal Emergency Response Attendant is a narrow specialty nationwide, with 830 enrolled providers across 48 states and an average of 996 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1801811286 |
|---|---|
| Specialty | Personal Emergency Response Attendant |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/13/2006 |
Brand vs generic prescribing mix · Generic-heavy
Fermin Hernandez, M.D. - brand share 4.0%
Personal Emergency Response Attendant average
4% brand-name claims vs 92% generic, on 1,110 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,110
Total Claims
$20K
Total Drug Cost
827
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,125
- Total Day Supply
- 12,094
- Brand vs Generic
- 4% brand / 92% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $14K
- Opioid Claims
- 43 (3.9% rate)
- Antibiotic Claims
- 310
Patient Demographics
- Average Patient Age
- 75.4 years
- Avg HCC Risk Score
- 1.78
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 85, 65-74: 300, 75-84: 293, 85+: 149
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Fermin Hernandez, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diclofenac Sodium
Diclofenac Sodium
274 claims
- Amoxicillin-Clavul… 104
Amoxicillin-Clavulanate Potass
104 claims
- Ciprofloxacin Hcl 90
Ciprofloxacin Hcl
90 claims
- Meclizine Hcl 63
Meclizine Hcl
63 claims
- Pantoprazole Sodium 54
Pantoprazole Sodium
54 claims
- Methylprednisolone 44
Methylprednisolone
44 claims
- Tramadol Hcl-Aceta… 42
Tramadol Hcl-Acetaminophen
42 claims
- Cefadroxil 41
Cefadroxil
41 claims
| Drug | Claims |
|---|---|
| Diclofenac Sodium | 274 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 104 |
| Ciprofloxacin Hcl | 90 |
| Meclizine Hcl | 63 |
| Pantoprazole Sodium | 54 |
| Methylprednisolone | 44 |
| Tramadol Hcl-Acetaminophen Tramadol Hcl/Acetaminophen | 42 |
| Cefadroxil | 41 |
| Lagevrio (Eua) Molnupiravir | 39 |
| Azithromycin | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Personal Emergency Response Attendant in PR →
All providers in Puerto Rico →
Compare specialties →
Personal Emergency Response Attendant Overview
How Fermin Hernandez, M.D. fits within the Personal Emergency Response Attendant landscape nationally.
830
Personal Emergency Response Attendant Providers in US
48
States with Personal Emergency Response Attendant
996
Avg Claims per Provider
Fermin Hernandez, M.D.'s 1,110 claims are above the specialty average of 996.
Nearby Personal Emergency Response Attendant Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Hernandez.
Dr. Waika Acosta
M.D.
San German, PR
Dr. Jose Aguilo
MD
Mayaguez, PR
Daniel Ayala
Canovanas, PR
Ramon Calderon
Aguadilla, PR
Dr. Migdonio Camacho
M.D.
Quebradillas, PR
Compare Personal Emergency Response Attendant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Puerto Rico medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Personal Emergency Response Attendant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Fermin Hernandez, M.D.'s specialty? ▼
Fermin Hernandez, M.D. specializes in Personal Emergency Response Attendant and practices in Toa Baja, Puerto Rico. Credentials: M.D..
How much does Fermin Hernandez, M.D. prescribe under Medicare Part D? ▼
In 2023, Fermin Hernandez, M.D. wrote 1,110 Medicare Part D claims totaling $20K in drug costs for 827 beneficiaries.
Where is Fermin Hernandez, M.D. located? ▼
Fermin Hernandez, M.D. is located at 8064 PASEO LAS GAVIOTAS URB. CAMINO DEL MAR, Toa Baja, PR, 00949. Phone: (787) 784-8139.
What is Fermin Hernandez, M.D.'s NPI number? ▼
Fermin Hernandez, M.D.'s National Provider Identifier (NPI) is 1801811286, issued on 07/13/2006.
Does Fermin Hernandez, M.D. prescribe more brand-name or generic drugs? ▼
Fermin Hernandez, M.D.'s prescribing is 4% brand-name and 92% generic drugs by claim count, with $6K in brand drug costs.
Does Fermin Hernandez, M.D. prescribe opioids? ▼
Yes, Fermin Hernandez, M.D. had 43 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Personal Emergency Response Attendant providers are there in the US? ▼
There are 830 Personal Emergency Response Attendant providers across 48 states in the US. The average Personal Emergency Response Attendant provider writes 996 Medicare Part D claims per year.
What drugs does Fermin Hernandez, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Fermin Hernandez, M.D.'s most frequently prescribed drugs include Diclofenac Sodium, Amoxicillin-Clavulanate Potass, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Fermin Hernandez, M.D. accept Medicare? ▼
Fermin Hernandez, M.D. appears in CMS Medicare data with 1,110 Part D claims and 827 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Fermin Hernandez, M.D.'s credentials? ▼
Fermin Hernandez, M.D.'s NPI is 1801811286 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.