2026 NPPES data General Practice Physician NPI 1982373999 MD
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JUAN MARTINEZ, MD

General Practice Physician in SAN GERMAN, 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
433
Medicare Part D claims · 305 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$31.32
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JUAN MARTINEZ, MD filed 433 Medicare Part D claims in 2023 as a General Practice Physician in SAN GERMAN, Puerto Rico, prescribing 97% generic.

433
Part D claims, 2023
97%
generic prescribing
$31.32
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.

JUAN MARTINEZ, MD's Medicare Part D volume vs every U.S. prescriber

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

433 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)

JUAN MARTINEZ, 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 JUAN MARTINEZ, MD?

Quality data not reported

NPI registry status

Active

Issued 09/13/2021

NPI 1982373999

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

433 85% 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).

JUAN MARTINEZ, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at CARR2 KM173, SAN GERMAN, PR, 00683, with a listed phone of (787) 892-1860. NPI 1982373999 was issued on 09/13/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARTINEZ 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 433 prescription claims written by this provider, covering 305 Medicare beneficiaries and totaling roughly $6K in drug spend, split 3% brand-name and 97% 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

CARR2 KM173
SAN GERMAN, PR 00683

Provider Details

NPI 1982373999
Specialty General Practice Physician
Credentials MD
Gender Male
NPI Issued 09/13/2021

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 JUAN MARTINEZ, MD. Source: openpaymentsdata.cms.gov.

Total received

$31

Largest payer

Janssen Pharmaceuticals, Inc

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

JUAN MARTINEZ, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 433 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.

433
Total Claims
$6K
Total Drug Cost
305
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
434
Total Day Supply
5,003
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$493
Generic Drug Cost
$5K
Antibiotic Claims
93

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.90
Gender Split
60% female / 40% male
Age Distribution
<65: 33, 65-74: 141, 75-84: 91, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What JUAN MARTINEZ, 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
Dexamethasone
37
Gabapentin
32
Famotidine
27
Ibuprofen
27
Azithromycin
21
Cephalexin
18
Clindamycin Hcl
16
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
16
Dicyclomine Hcl
14
Meloxicam
13

* 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 JUAN MARTINEZ, 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

JUAN MARTINEZ, MD's 433 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 MARTINEZ.

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

Frequently Asked Questions

What is JUAN MARTINEZ, MD's specialty?
JUAN MARTINEZ, MD specializes in General Practice Physician and practices in SAN GERMAN, Puerto Rico. Credentials: MD.
How much does JUAN MARTINEZ, MD prescribe under Medicare Part D?
In 2023, JUAN MARTINEZ, MD wrote 433 Medicare Part D claims totaling $6K in drug costs for 305 beneficiaries.
Where is JUAN MARTINEZ, MD located?
JUAN MARTINEZ, MD is located at CARR2 KM173, SAN GERMAN, PR, 00683. Phone: (787) 892-1860.
What is JUAN MARTINEZ, MD's NPI number?
JUAN MARTINEZ, MD's National Provider Identifier (NPI) is 1982373999, issued on 09/13/2021.
Does JUAN MARTINEZ, MD prescribe more brand-name or generic drugs?
JUAN MARTINEZ, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $493 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 JUAN MARTINEZ, MD prescribe most often?
Based on 2023 Medicare Part D data, JUAN MARTINEZ, MD's most frequently prescribed drugs include Dexamethasone, Gabapentin, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JUAN MARTINEZ, MD accept Medicare?
JUAN MARTINEZ, MD appears in CMS Medicare data with 433 Part D claims and 305 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JUAN MARTINEZ, MD's credentials?
JUAN MARTINEZ, MD's NPI is 1982373999 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