2026 NPPES data Hospitalist Physician NPI 1972948487
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JAYLEEN SANTIAGO-MAESTRE

Hospitalist 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
335
Medicare Part D claims · 42 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JAYLEEN SANTIAGO-MAESTRE filed 335 Medicare Part D claims in 2023 as a Hospitalist Physician in SAN JUAN, Puerto Rico, prescribing 94% generic.

335
Part D claims, 2023
94%
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.

JAYLEEN SANTIAGO-MAESTRE's Medicare Part D volume vs every U.S. prescriber

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

335 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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)

JAYLEEN SANTIAGO-MAESTRE 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 JAYLEEN SANTIAGO-MAESTRE?

Quality data not reported

NPI registry status

Active

Issued 05/10/2013

NPI 1972948487

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

335 62% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Puerto Rico

How Hospitalist Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Hospitalist Physician share within Puerto Rico

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hospitalist 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).

JAYLEEN SANTIAGO-MAESTRE appears in the CMS NPPES registry as a Hospitalist Physician provider at 10 CALLE CASIA, SAN JUAN, PR, 00921, with a listed phone of (787) 641-7582. NPI 1972948487 was issued on 05/10/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SANTIAGO-MAESTRE 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 335 prescription claims written by this provider, covering 42 Medicare beneficiaries and totaling roughly $23K in drug spend, split 6% brand-name and 94% 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

10 CALLE CASIA
SAN JUAN, PR 00921

Provider Details

NPI 1972948487
Specialty Hospitalist Physician
Gender Female
NPI Issued 05/10/2013

Brand vs generic prescribing mix · Generic-heavy

JAYLEEN SANTIAGO-MAESTRE — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 335 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.

335
Total Claims
$23K
Total Drug Cost
42
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
872
Total Day Supply
25,993
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$18K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.35

Top Prescribed Drugs (Medicare Part D)

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

What JAYLEEN SANTIAGO-MAESTRE 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
Atorvastatin Calcium
42
Lisinopril
28
Tamsulosin Hcl
21
Gabapentin
18
Omeprazole
16
Amlodipine Besylate
15
Metoprolol Succinate
14

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

Hospitalist Physician Overview

How JAYLEEN SANTIAGO-MAESTRE fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

JAYLEEN SANTIAGO-MAESTRE's 335 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as SANTIAGO-MAESTRE.

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAYLEEN SANTIAGO-MAESTRE's specialty?
JAYLEEN SANTIAGO-MAESTRE specializes in Hospitalist Physician and practices in SAN JUAN, Puerto Rico.
How much does JAYLEEN SANTIAGO-MAESTRE prescribe under Medicare Part D?
In 2023, JAYLEEN SANTIAGO-MAESTRE wrote 335 Medicare Part D claims totaling $23K in drug costs for 42 beneficiaries.
Where is JAYLEEN SANTIAGO-MAESTRE located?
JAYLEEN SANTIAGO-MAESTRE is located at 10 CALLE CASIA, SAN JUAN, PR, 00921. Phone: (787) 641-7582.
What is JAYLEEN SANTIAGO-MAESTRE's NPI number?
JAYLEEN SANTIAGO-MAESTRE's National Provider Identifier (NPI) is 1972948487, issued on 05/10/2013.
Does JAYLEEN SANTIAGO-MAESTRE prescribe more brand-name or generic drugs?
JAYLEEN SANTIAGO-MAESTRE's prescribing is 6% brand-name and 94% generic drugs by claim count, with $18K in brand drug costs.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does JAYLEEN SANTIAGO-MAESTRE prescribe most often?
Based on 2023 Medicare Part D data, JAYLEEN SANTIAGO-MAESTRE's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Tamsulosin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAYLEEN SANTIAGO-MAESTRE accept Medicare?
JAYLEEN SANTIAGO-MAESTRE appears in CMS Medicare data with 335 Part D claims and 42 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAYLEEN SANTIAGO-MAESTRE's credentials?
JAYLEEN SANTIAGO-MAESTRE's NPI is 1972948487. 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