2026 NPPES data General Practice Dentistry NPI 1891832028 DDS
Verify on CMS →

GUSTAVO MARTINEZ, DDS

General Practice Dentistry in MANATI, 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
257
Medicare Part D claims · 85 beneficiaries · General Practice Dentistry avg: 82
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GUSTAVO MARTINEZ, DDS filed 257 Medicare Part D claims in 2023 as a General Practice Dentistry in MANATI, Puerto Rico, prescribing 90% generic.

257
Part D claims, 2023
90%
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.

GUSTAVO MARTINEZ, DDS's Medicare Part D volume vs every U.S. prescriber

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

257 49th percentile higher than 49% 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

What does the federal data show about GUSTAVO MARTINEZ, DDS?

Quality data not reported

NPI registry status

Active

Issued 01/30/2007

NPI 1891832028

Primary specialty

General Practice Dentistry

High-volume

121,627 US NPIs in this specialty

Medicare Part D claims

257 213% vs specialty avg

2023 prescription claims

Specialty avg: 82

Specialty distribution in Puerto Rico

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

Puerto Rico providers

General Practice Dentistry share within Puerto Rico

1. General Practice Dentistry42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Dentistry share within Puerto Rico

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (General Practice Dentistry) — 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).

GUSTAVO MARTINEZ, DDS is a General Practice Dentistry provider practicing in MANATI, Puerto Rico, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DDS. NPI: 1891832028. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GUSTAVO MARTINEZ, DDS appears in the CMS NPPES registry as a General Practice Dentistry provider holding DDS credentials at BETANCES #5, MANATI, PR, 00674, with a listed phone of (787) 854-7728. NPI 1891832028 was issued on 01/30/2007. 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 257 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $14K in drug spend, split 10% brand-name and 90% 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 Dentistry is a high-volume specialty nationwide, with 121,627 enrolled providers across 56 states and an average of 82 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

BETANCES #5
MANATI, PR 00674

Provider Details

NPI 1891832028
Specialty General Practice Dentistry
Credentials DDS
Gender Male
NPI Issued 01/30/2007

Brand vs generic prescribing mix · Typical

GUSTAVO MARTINEZ, DDS — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 257 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.

257
Total Claims
$14K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
261
Total Day Supply
4,706
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$12K
Generic Drug Cost
$2K
Antibiotic Claims
99

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.83
Gender Split
49% female / 51% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Clindamycin Hcl
68
Amoxicillin
21
Ibuprofen
21
Allopurinol
11
Clopidogrel
Clopidogrel Bisulfate
11
Farxiga
Dapagliflozin Propanediol
11
Isosorbide Mononitrate Er
Isosorbide Mononitrate
11

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

General Practice Dentistry Overview

How GUSTAVO MARTINEZ, DDS fits within the General Practice Dentistry landscape nationally.

121,627
General Practice Dentistry Providers in US
56
States with General Practice Dentistry
82
Avg Claims per Provider

GUSTAVO MARTINEZ, DDS's 257 claims are above the specialty average of 82.

Nearby General Practice Dentistry 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 Dentistry nationally: see state-by-state distribution →

Frequently Asked Questions

What is GUSTAVO MARTINEZ, DDS's specialty?
GUSTAVO MARTINEZ, DDS specializes in General Practice Dentistry and practices in MANATI, Puerto Rico. Credentials: DDS.
How much does GUSTAVO MARTINEZ, DDS prescribe under Medicare Part D?
In 2023, GUSTAVO MARTINEZ, DDS wrote 257 Medicare Part D claims totaling $14K in drug costs for 85 beneficiaries.
Where is GUSTAVO MARTINEZ, DDS located?
GUSTAVO MARTINEZ, DDS is located at BETANCES #5, MANATI, PR, 00674. Phone: (787) 854-7728.
What is GUSTAVO MARTINEZ, DDS's NPI number?
GUSTAVO MARTINEZ, DDS's National Provider Identifier (NPI) is 1891832028, issued on 01/30/2007.
Does GUSTAVO MARTINEZ, DDS prescribe more brand-name or generic drugs?
GUSTAVO MARTINEZ, DDS's prescribing is 10% brand-name and 90% generic drugs by claim count, with $12K in brand drug costs.
How many General Practice Dentistry providers are there in the US?
There are 121,627 General Practice Dentistry providers across 56 states in the US. The average General Practice Dentistry provider writes 82 Medicare Part D claims per year.
What drugs does GUSTAVO MARTINEZ, DDS prescribe most often?
Based on 2023 Medicare Part D data, GUSTAVO MARTINEZ, DDS's most frequently prescribed drugs include Clindamycin Hcl, Amoxicillin, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GUSTAVO MARTINEZ, DDS accept Medicare?
GUSTAVO MARTINEZ, DDS appears in CMS Medicare data with 257 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GUSTAVO MARTINEZ, DDS's credentials?
GUSTAVO MARTINEZ, DDS's NPI is 1891832028 with credentials DDS. 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