NPI registry status
Active
2026 NPPES data Specialist NPI 1437248564 MD
Verify on CMS → Elba Algarin, MD
Specialist in Humacao, 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 69,658 in Specialist, 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
3K
Medicare Part D claims · 107 beneficiaries · Specialist avg: 1K
Generic prescribing
87%
generic claims · 11% 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
Elba Algarin, MD filed 3,116 Medicare Part D claims in 2023 as a Specialist in Humacao, Puerto Rico, prescribing 87% generic.
- 3K
- Part D claims, 2023
- 87%
- 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.
Elba Algarin, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,116 Top 11% higher than 89% 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 Elba Algarin, MD?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
3,116 111% vs specialty avg
Specialty distribution in Puerto Rico
How Specialist 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 Specialist. 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).
Elba Algarin, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at H-43 FONT MARTIDLO AVE, Humacao, PR, 00791, with a listed phone of (787) 285-1106. NPI 1437248564 was issued on 10/12/2006.
Medicare Part D records for calendar year 2023 show 3,116 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $132K in drug spend, split 11% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.1%.
Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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 | 1437248564 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 10/12/2006 |
Brand vs generic prescribing mix · Typical
Elba Algarin, MD - brand share 11.0%
Specialist average
11% brand-name claims vs 87% generic, on 3,116 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.
3,116
Total Claims
$132K
Total Drug Cost
107
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,148
- Total Day Supply
- 120,826
- Brand vs Generic
- 11% brand / 87% generic
- Brand Drug Cost
- $104K
- Generic Drug Cost
- $27K
- Opioid Claims
- 35 (1.1% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 1.37
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Elba Algarin, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
249 claims
- Gabapentin
Gabapentin
143 claims
- Metformin Hcl
Metformin Hcl
137 claims
- Losartan Potassium
Losartan Potassium
121 claims
- Lisinopril
Lisinopril
113 claims
- Simvastatin
Simvastatin
106 claims
- Glimepiride
Glimepiride
100 claims
- Amlodipine Besylate 99
Amlodipine Besylate
99 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 249 |
| Gabapentin | 143 |
| Metformin Hcl | 137 |
| Losartan Potassium | 121 |
| Lisinopril | 113 |
| Simvastatin | 106 |
| Glimepiride | 100 |
| Amlodipine Besylate | 99 |
| Synthroid Levothyroxine Sodium | 99 |
| Pioglitazone Hcl | 63 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Elba Algarin, MD fits within the Specialist landscape nationally.
69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Elba Algarin, MD's 3,116 claims are above the specialty average of 1,474.
Nearby Specialist Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Algarin.
Dr. Alberto Abreu
M.D.
Ponce, PR
Dr. Arlene Abreu Rivera
MD
Caguas, PR
Dr. Alberto Abreu-Rivera
M.D. FAMILY PHYSICIA
Arecibo, PR
Dr. Carmen Acantilado
M.D.
Bayamon, PR
Dr. Frank Acevedo
M.D.
Cayey, PR
Compare Specialist 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 Specialist 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.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Puerto Rico
Frequently Asked Questions
What is Elba Algarin, MD's specialty? ▼
Elba Algarin, MD specializes in Specialist and practices in Humacao, Puerto Rico. Credentials: MD.
How much does Elba Algarin, MD prescribe under Medicare Part D? ▼
In 2023, Elba Algarin, MD wrote 3,116 Medicare Part D claims totaling $132K in drug costs for 107 beneficiaries.
Where is Elba Algarin, MD located? ▼
Elba Algarin, MD is located at H-43 FONT MARTIDLO AVE, Humacao, PR, 00791. Phone: (787) 285-1106.
What is Elba Algarin, MD's NPI number? ▼
Elba Algarin, MD's National Provider Identifier (NPI) is 1437248564, issued on 10/12/2006.
Does Elba Algarin, MD prescribe more brand-name or generic drugs? ▼
Elba Algarin, MD's prescribing is 11% brand-name and 87% generic drugs by claim count, with $104K in brand drug costs.
Does Elba Algarin, MD prescribe opioids? ▼
Yes, Elba Algarin, MD had 35 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Specialist providers are there in the US? ▼
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Elba Algarin, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Elba Algarin, MD's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Elba Algarin, MD accept Medicare? ▼
Elba Algarin, MD appears in CMS Medicare data with 3,116 Part D claims and 107 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elba Algarin, MD's credentials? ▼
Elba Algarin, MD's NPI is 1437248564 with credentials MD. 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.