2026 NPPES data General Practice Physician NPI 1639637044 MD
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AIMEE AMY ALEN, MD

General Practice Physician in SAN JUAN, Puerto Rico. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
482
Medicare Part D claims · 244 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$130.68
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

AIMEE AMY ALEN, MD filed 482 Medicare Part D claims in 2023 as a General Practice Physician in SAN JUAN, Puerto Rico, prescribing 96% generic.

482
Part D claims, 2023
96%
generic prescribing
$130.68
industry payments (Sunshine Act)

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.

AIMEE AMY ALEN, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

482 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

Board-eligible specialty (heuristic — not verified)

AIMEE AMY ALEN, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about AIMEE AMY ALEN, MD?

Quality data not reported

NPI registry status

Active

Issued 03/05/2019

NPI 1639637044

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

482 83% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Puerto Rico

How General Practice Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

General Practice Physician share within Puerto Rico

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within Puerto Rico

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
General Practice Physician ABMS/AOA estimate

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

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).

AIMEE AMY ALEN, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at B4 SAN ALVARO, SAN JUAN, PR, 00926, with a listed phone of (787) 378-4562. NPI 1639637044 was issued on 03/05/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMY ALEN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 482 prescription claims written by this provider, covering 244 Medicare beneficiaries and totaling roughly $13K in drug spend, split 4% brand-name and 96% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

B4 SAN ALVARO
SAN JUAN, PR 00926

Provider Details

NPI 1639637044
Specialty General Practice Physician
Credentials MD
Gender Female
NPI Issued 03/05/2019

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for AIMEE AMY ALEN, MD. Source: openpaymentsdata.cms.gov.

Total received

$131

Largest payer

E.R. Squibb & Sons, L.L.C.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

AIMEE AMY ALEN, MD — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 482 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.

482
Total Claims
$13K
Total Drug Cost
244
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
512
Total Day Supply
5,911
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$6K
Generic Drug Cost
$7K
Antibiotic Claims
118

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.54
Gender Split
70% female / 30% male
Age Distribution
<65: 33, 65-74: 109, 75-84: 76, 85+: 26

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What AIMEE AMY ALEN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Famotidine
63
Azithromycin
45
Naproxen
37
Methylprednisolone
21
Diclofenac Potassium
19
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
18
Mupirocin
Mupirocin Calcium
16
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
14
Baclofen
11
Losartan Potassium
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

General Practice Physician Overview

How AIMEE AMY ALEN, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

AIMEE AMY ALEN, MD's 482 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as AMY ALEN.

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AIMEE AMY ALEN, MD's specialty?
AIMEE AMY ALEN, MD specializes in General Practice Physician and practices in SAN JUAN, Puerto Rico. Credentials: MD.
How much does AIMEE AMY ALEN, MD prescribe under Medicare Part D?
In 2023, AIMEE AMY ALEN, MD wrote 482 Medicare Part D claims totaling $13K in drug costs for 244 beneficiaries.
Where is AIMEE AMY ALEN, MD located?
AIMEE AMY ALEN, MD is located at B4 SAN ALVARO, SAN JUAN, PR, 00926. Phone: (787) 378-4562.
What is AIMEE AMY ALEN, MD's NPI number?
AIMEE AMY ALEN, MD's National Provider Identifier (NPI) is 1639637044, issued on 03/05/2019.
Does AIMEE AMY ALEN, MD prescribe more brand-name or generic drugs?
AIMEE AMY ALEN, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $6K in brand drug costs.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does AIMEE AMY ALEN, MD prescribe most often?
Based on 2023 Medicare Part D data, AIMEE AMY ALEN, MD's most frequently prescribed drugs include Famotidine, Azithromycin, Naproxen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AIMEE AMY ALEN, MD accept Medicare?
AIMEE AMY ALEN, MD appears in CMS Medicare data with 482 Part D claims and 244 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AIMEE AMY ALEN, MD's credentials?
AIMEE AMY ALEN, MD's NPI is 1639637044 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

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