NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1396999819 MD
Verify on CMS → Natalia Palacio, MD
Internal Medicine Physician in Dallas, 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
3K
Medicare Part D claims · 272 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$333.82
17 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Natalia Palacio, MD filed 3,107 Medicare Part D claims in 2023 as an Internal Medicine Physician in Dallas, Texas, prescribing 88% generic.
- 3K
- Part D claims, 2023
- 88%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥89th
- 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.
CMS NPPES provider registry desk
NPI 1396999819 · Internal Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1396999819
- ENUM-MID 2008
- TAX-MEGA 173K Internal Medicine
- RX-MID 3,107
- BOOK-MID 10,926 in Texas
- PHOTO-ENUM Amanda Mazza · 2008
Natalia Palacio, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,107 ≥ 89th percentile 89% of 1,370,886 prescribers are in lower value bands
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 Palacio, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Palacio, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
3,107 14% vs specialty avg
Specialty distribution in Texas
How Internal Medicine Physician compares to other specialties among Texas 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).
Practice Address
Provider Details
| NPI | 1396999819 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 11/11/2008 |
Hospital and facility affiliations
Facilities where Natalia Palacio, 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.
North Star Internal Medicine, PLLC
Dallas, TX
Texas Health Physicians Group
Dallas, 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 Natalia Palacio, MD. Source: openpaymentsdata.cms.gov.
Total received
$334
Largest payer
Lilly USA, LLC
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.
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 Palacio, MD. To verify Natalia Palacio, 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 · Typical
Natalia Palacio, MD - brand share 11.0%
Internal Medicine Physician average
11% brand-name claims vs 88% generic, on 3,107 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.
3,107
Total Claims
$280K
Total Drug Cost
272
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,521
- Total Day Supply
- 221,788
- Brand vs Generic
- 11% brand / 88% generic
- Brand Drug Cost
- $216K
- Generic Drug Cost
- $63K
- Opioid Claims
- 31 (1.0% rate)
- Antibiotic Claims
- 42
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 22, 65-74: 127, 75-84: 90, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Natalia Palacio, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
259 claims
- Amlodipine Besylate
Amlodipine Besylate
180 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
172 claims
- Levothyroxine Sodium
Levothyroxine Sodium
133 claims
- Lisinopril 100
Lisinopril
100 claims
- Losartan Potassium 100
Losartan Potassium
100 claims
- Pantoprazole Sodium 83
Pantoprazole Sodium
83 claims
- Metformin Hcl Er 74
Metformin Hcl Er
74 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 259 |
| Amlodipine Besylate | 180 |
| Rosuvastatin Calcium | 172 |
| Levothyroxine Sodium | 133 |
| Lisinopril | 100 |
| Losartan Potassium | 100 |
| Pantoprazole Sodium | 83 |
| Metformin Hcl Er Metformin Hcl | 74 |
| Famotidine | 71 |
| Gabapentin | 63 |
* 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 Palacio, MD 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 Palacio, MD's 3,107 claims are above the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Palacio, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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 Palacio.
One of 10,926 Internal Medicine Physician providers enrolled in Texas, 5 are shown here.
Dr. Muhammad A. Sattar
MD
Dallas, TX
Anunaya Aashish
Denton, TX
Dr. Queenie Ann Abad
M.D.
San Antonio, TX
Dr. Fuad Abaleka
M.D
Lubbock, TX
Dr. Carol Abalihi
M.D.
El Paso, TX
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Natalia Palacio, MD's specialty? ▼
Natalia Palacio, MD specializes in Internal Medicine Physician and practices in Dallas, Texas. Credentials: MD.
How much does Natalia Palacio, MD prescribe under Medicare Part D? ▼
In 2023, Natalia Palacio, MD wrote 3,107 Medicare Part D claims totaling $280K in drug costs for 272 beneficiaries.
Where is Natalia Palacio, MD located? ▼
Natalia Palacio, MD is located at 8230 WALNUT HILL LN STE 410, Dallas, TX, 75231. Phone: (214) 420-9307.
What is Natalia Palacio, MD's NPI number? ▼
Natalia Palacio, MD's National Provider Identifier (NPI) is 1396999819, issued on 11/11/2008.
Does Natalia Palacio, MD prescribe more brand-name or generic drugs? ▼
Natalia Palacio, MD's prescribing is 11% brand-name and 88% generic drugs by claim count, with $216K in brand drug costs.
Does Natalia Palacio, MD prescribe opioids? ▼
Yes, Natalia Palacio, MD had 31 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
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 Palacio, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Natalia Palacio, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Natalia Palacio, MD accept Medicare? ▼
Natalia Palacio, MD appears in CMS Medicare data with 3,107 Part D claims and 272 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Natalia Palacio, MD's credentials? ▼
Natalia Palacio, MD's NPI is 1396999819 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
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.