NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1891358529 MD
Verify on CMS → Ashley Gutierrez Santana, MD
Hospitalist Physician in Knoxville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,825 in Hospitalist 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
640
Medicare Part D claims · 49 beneficiaries · Hospitalist Physician avg: 888
Industry payments
$197.38
8 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ashley Gutierrez Santana, MD filed 640 Medicare Part D claims in 2023 as a Hospitalist Physician in Knoxville, Tennessee.
- 640
- Part D claims, 2023
- 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.
Ashley Gutierrez Santana, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
640 Top 31% higher than 69% of 1,370,886 prescribers
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)
Ashley Gutierrez Santana, 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 Ashley Gutierrez Santana, MD?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
640 28% vs specialty avg
Specialty distribution in Tennessee
How Hospitalist Physician compares to other specialties among Tennessee 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 Hospitalist 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).
Ashley Gutierrez Santana, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 1924 ALCOA HIGHWAY, U-114, Knoxville, TN, 37920, with a listed phone of (865) 305-9340. NPI 1891358529 was issued on 04/18/2019.
Medicare Part D records for calendar year 2023 show 640 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $81K in drug spend.
Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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
Provider Details
| NPI | 1891358529 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/18/2019 |
Hospital and facility affiliations
Facilities where Ashley Gutierrez Santana, 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.
University Health System, Inc.
Knoxville, TN
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 Ashley Gutierrez Santana, MD. Source: openpaymentsdata.cms.gov.
Total received
$197
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
640
Total Claims
$81K
Total Drug Cost
49
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,065
- Total Day Supply
- 31,045
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 2.75
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ashley Gutierrez Santana, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
41 claims
- Amlodipine Besylate
Amlodipine Besylate
40 claims
- Levothyroxine Sodium
Levothyroxine Sodium
34 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
30 claims
- Losartan Potassium
Losartan Potassium
27 claims
- Gabapentin
Gabapentin
25 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
22 claims
- Omeprazole
Omeprazole
21 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 41 |
| Amlodipine Besylate | 40 |
| Levothyroxine Sodium | 34 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 30 |
| Losartan Potassium | 27 |
| Gabapentin | 25 |
| Rosuvastatin Calcium | 22 |
| Omeprazole | 21 |
| Carvedilol | 20 |
| Metformin Hcl Er Metformin Hcl | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Ashley Gutierrez Santana, MD fits within the Hospitalist Physician landscape nationally.
16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider
Ashley Gutierrez Santana, MD's 640 claims are below the specialty average of 888.
Nearby Hospitalist Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Gutierrez Santana.
Dr. Mohammad Abutineh
M.D.
Memphis, TN
Dr. Frank Adamini
MD
Hermitage, TN
Dr. Stephanie Adams
D.O.
Bristol, TN
Dr. Stephen Adams
MD
Chattanooga, TN
Dr. Oluwaseyi Adejorin
M.D
Cookeville, TN
Compare Hospitalist 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 Tennessee medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hospitalist 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Tennessee
Frequently Asked Questions
What is Ashley Gutierrez Santana, MD's specialty? ▼
Ashley Gutierrez Santana, MD specializes in Hospitalist Physician and practices in Knoxville, Tennessee. Credentials: MD.
How much does Ashley Gutierrez Santana, MD prescribe under Medicare Part D? ▼
In 2023, Ashley Gutierrez Santana, MD wrote 640 Medicare Part D claims totaling $81K in drug costs for 49 beneficiaries.
Where is Ashley Gutierrez Santana, MD located? ▼
Ashley Gutierrez Santana, MD is located at 1924 ALCOA HIGHWAY, U-114, Knoxville, TN, 37920. Phone: (865) 305-9340.
What is Ashley Gutierrez Santana, MD's NPI number? ▼
Ashley Gutierrez Santana, MD's National Provider Identifier (NPI) is 1891358529, issued on 04/18/2019.
How many Hospitalist Physician providers are there in the US? ▼
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does Ashley Gutierrez Santana, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Ashley Gutierrez Santana, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ashley Gutierrez Santana, MD accept Medicare? ▼
Ashley Gutierrez Santana, MD appears in CMS Medicare data with 640 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ashley Gutierrez Santana, MD's credentials? ▼
Ashley Gutierrez Santana, MD's NPI is 1891358529 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
Compiled from official public sources by the PlainDoctor editorial team.