2026 NPPES data Infectious Disease Physician NPI 1700815479 MD
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MARINA NUNEZ, MD

Infectious Disease Physician in BAYTOWN, Texas. 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
111
Medicare Part D claims · 32 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.2
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MARINA NUNEZ, MD filed 111 Medicare Part D claims in 2023 as a Infectious Disease Physician in BAYTOWN, Texas, prescribing 49% generic.

111
Part D claims, 2023
49%
generic prescribing
Likely
board-certified (heuristic)

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.

MARINA NUNEZ, MD's Medicare Part D volume vs every U.S. prescriber

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

111 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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 certification likely (heuristic — not verified)

MARINA NUNEZ, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MARINA NUNEZ, MD?

Quality data not reported

NPI registry status

Active

Issued 07/03/2006

NPI 1700815479

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

111 86% vs specialty avg

2023 prescription claims

Specialty avg: 816

Specialty distribution in Texas

How Infectious Disease Physician compares to other specialties among Texas providers

Texas providers

Infectious Disease Physician share within Texas

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Texas

Specialty board-certification context

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

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

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

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

MARINA NUNEZ, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 4201 GARTH RD STE 301, BAYTOWN, TX, 77521, with a listed phone of (281) 420-7290. NPI 1700815479 was issued on 07/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NUNEZ 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 111 prescription claims written by this provider, covering 32 Medicare beneficiaries and totaling roughly $1.0 million in drug spend, split 51% brand-name and 49% 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.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

4201 GARTH RD STE 301
BAYTOWN, TX 77521

Provider Details

NPI 1700815479
Specialty Infectious Disease Physician
Credentials MD
Gender Female
NPI Issued 07/03/2006

Hospital and facility affiliations

Facilities where MARINA NUNEZ, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

TMH PHYSICIAN ASSOCIATES PLLC
SUGAR LAND, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 MARINA NUNEZ, MD. Source: openpaymentsdata.cms.gov.

Total received

$13

Largest payer

Shionogi Inc

Most common payment type

Education

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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to MARINA NUNEZ, MD. To verify MARINA NUNEZ, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

MARINA NUNEZ, MD — brand share 51.0%
Specialty average (est.)

51% brand-name claims vs 49% generic, on 111 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.

111
Total Claims
$1.0M
Total Drug Cost
32
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
133
Total Day Supply
3,396
Brand vs Generic
51% brand / 49% generic
Brand Drug Cost
$1.0M
Generic Drug Cost
$10K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
66.1 years
Avg HCC Risk Score
2.28
Age Distribution
<65: 11, 65-74: 16, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What MARINA NUNEZ, 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
Entecavir
22
Mavyret
Glecaprevir/Pibrentasvir
17
Tenofovir Disoproxil Fumarate
17
Harvoni
Ledipasvir/Sofosbuvir
13

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

Infectious Disease Physician Overview

How MARINA NUNEZ, MD fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

MARINA NUNEZ, MD's 111 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as NUNEZ.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARINA NUNEZ, MD's specialty?
MARINA NUNEZ, MD specializes in Infectious Disease Physician and practices in BAYTOWN, Texas. Credentials: MD.
How much does MARINA NUNEZ, MD prescribe under Medicare Part D?
In 2023, MARINA NUNEZ, MD wrote 111 Medicare Part D claims totaling $1.0M in drug costs for 32 beneficiaries.
Where is MARINA NUNEZ, MD located?
MARINA NUNEZ, MD is located at 4201 GARTH RD STE 301, BAYTOWN, TX, 77521. Phone: (281) 420-7290.
What is MARINA NUNEZ, MD's NPI number?
MARINA NUNEZ, MD's National Provider Identifier (NPI) is 1700815479, issued on 07/03/2006.
Does MARINA NUNEZ, MD prescribe more brand-name or generic drugs?
MARINA NUNEZ, MD's prescribing is 51% brand-name and 49% generic drugs by claim count, with $1.0M in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does MARINA NUNEZ, MD prescribe most often?
Based on 2023 Medicare Part D data, MARINA NUNEZ, MD's most frequently prescribed drugs include Entecavir, Mavyret, Tenofovir Disoproxil Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARINA NUNEZ, MD accept Medicare?
MARINA NUNEZ, MD appears in CMS Medicare data with 111 Part D claims and 32 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARINA NUNEZ, MD's credentials?
MARINA NUNEZ, MD's NPI is 1700815479 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