2026 NPPES data Internal Medicine Physician NPI 1538553458
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Natalia Molinas

Internal Medicine Physician in San Antonio, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
748
Medicare Part D claims · 311 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

Natalia Molinas filed 748 Medicare Part D claims in 2023 as an Internal Medicine Physician in San Antonio, Texas, prescribing 93% generic.

748
Part D claims, 2023
93%
generic prescribing
Likely
board-certified (heuristic)
≥71st
pct by Part D claim volume (lower-bound band)

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.

Natalia Molinas's Medicare Part D volume vs every U.S. prescriber

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

748 ≥ 71st percentile 71% of 1,370,886 prescribers are in lower value bands

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 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. 2K+: 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.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Natalia Molinas 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 Natalia Molinas?

Quality data not reported

NPI registry status

Active

Issued 03/28/2015

NPI 1538553458

Primary specialty

Internal Medicine Physician

High-volume

172,737 US NPIs in this specialty

Medicare Part D claims

748 72% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Texas

How Internal Medicine Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician5.6%Student in an Organized Heal…5.1%Family Nurse Practitioner4.5%Professional Counselor4.4%Pharmacist4.4%Speech-Language Pathologist3.9%Internal Medicine Physician2.6%
Largest specialties in Texas (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:

How MIPS and board certification work

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).

Natalia Molinas appears in the CMS NPPES registry as an Internal Medicine Physician provider at 12446 WEST AVE STE 200, San Antonio, TX, 78216, with a listed phone of (210) 525-1668. NPI 1538553458 was issued on 03/28/2015.

Medicare Part D records for calendar year 2023 show 748 prescription claims written by this provider, covering 311 Medicare beneficiaries and totaling roughly $43K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 12.3%.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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

12446 WEST AVE STE 200
San Antonio, TX 78216

Provider Details

NPI 1538553458
Specialty Internal Medicine Physician
Gender Female
NPI Issued 03/28/2015

Hospital and facility affiliations

Facilities where Natalia Molinas 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.

Complete Care Medical Associates
San Antonio, 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).

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 Natalia Molinas. To verify Natalia Molinas'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 · Generic-heavy

Natalia Molinas - brand share 7.0%
Internal Medicine Physician average

7% brand-name claims vs 93% generic, on 748 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.

748
Total Claims
$43K
Total Drug Cost
311
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
847
Total Day Supply
19,459
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$33K
Generic Drug Cost
$10K
Opioid Claims
92 (12.3% rate)
Antibiotic Claims
92

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
2.78
Gender Split
53% female / 47% male
Age Distribution
<65: 67, 65-74: 116, 75-84: 97, 85+: 31

Top Prescribed Drugs (Medicare Part D)

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

What Natalia Molinas 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
Clopidogrel
Clopidogrel Bisulfate
102
Atorvastatin Calcium
53
Pantoprazole Sodium
34
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
30
Tramadol Hcl
30
Acetaminophen-Codeine
Acetaminophen With Codeine
27
Levofloxacin
27
Gabapentin
26
Carvedilol
25
Ondansetron Odt
Ondansetron
24

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

Internal Medicine Physician Overview

How Natalia Molinas fits within the Internal Medicine Physician landscape nationally.

172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Natalia Molinas's 748 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Texas

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Natalia Molinas's specialty?
Natalia Molinas specializes in Internal Medicine Physician and practices in San Antonio, Texas.
How much does Natalia Molinas prescribe under Medicare Part D?
In 2023, Natalia Molinas wrote 748 Medicare Part D claims totaling $43K in drug costs for 311 beneficiaries.
Where is Natalia Molinas located?
Natalia Molinas is located at 12446 WEST AVE STE 200, San Antonio, TX, 78216. Phone: (210) 525-1668.
What is Natalia Molinas's NPI number?
Natalia Molinas's National Provider Identifier (NPI) is 1538553458, issued on 03/28/2015.
Does Natalia Molinas prescribe more brand-name or generic drugs?
Natalia Molinas's prescribing is 7% brand-name and 93% generic drugs by claim count, with $33K in brand drug costs.
Does Natalia Molinas prescribe opioids?
Yes, Natalia Molinas had 92 opioid claims in 2023 with an opioid prescribing rate of 12.3%.
How many Internal Medicine Physician providers are there in the US?
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Natalia Molinas prescribe most often?
Based on 2023 Medicare Part D data, Natalia Molinas's most frequently prescribed drugs include Clopidogrel, Atorvastatin Calcium, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natalia Molinas accept Medicare?
Natalia Molinas appears in CMS Medicare data with 748 Part D claims and 311 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natalia Molinas's credentials?
Natalia Molinas's NPI is 1538553458. 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

View source datasets and methodology notes
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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.