NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1013909365 MD
Verify on CMS → Neil Clements, MD
Critical Care Medicine (Internal Medicine) Physician in Tucson, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,646 in Critical Care Medicine (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
2K
Medicare Part D claims · 317 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Neil Clements, MD filed 1,686 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Tucson, Arizona.
- 2K
- 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.
Neil Clements, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,686 Top 18% higher than 82% 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)
Neil Clements, 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 Neil Clements, MD?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
1,686 58% vs specialty avg
Specialty distribution in Arizona
How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Arizona 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 Critical Care Medicine (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).
Neil Clements, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 9420 E GOLF LINK ROAD, STE 108, Tucson, AZ, 85730, with a listed phone of (520) 447-7413. NPI 1013909365 was issued on 08/22/2005.
Medicare Part D records for calendar year 2023 show 1,686 prescription claims written by this provider, covering 317 Medicare beneficiaries and totaling roughly $1.3 million in drug spend.
Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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 | 1013909365 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/22/2005 |
Hospital and facility affiliations
Facilities where Neil Clements, 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.
Natrajan Enterprises PLLC
Tucson, AZ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,686
Total Claims
$1.3M
Total Drug Cost
317
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,768
- Total Day Supply
- 76,097
- Generic Drug Cost
- $55K
- Antibiotic Claims
- 254
Patient Demographics
- Average Patient Age
- 75.9 years
- Avg HCC Risk Score
- 1.99
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 21, 65-74: 101, 75-84: 145, 85+: 50
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Neil Clements, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
227 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
137 claims
- Trelegy Ellipta
Trelegy Ellipta
126 claims
- Azithromycin
Azithromycin
125 claims
- Breo Ellipta
Breo Ellipta
125 claims
- Symbicort 80
Symbicort
80 claims
- Advair Hfa 69
Advair Hfa
69 claims
- Montelukast Sodium 53
Montelukast Sodium
53 claims
| Drug | Claims |
|---|---|
| Prednisone | 227 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 137 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 126 |
| Azithromycin | 125 |
| Breo Ellipta Fluticasone/Vilanterol | 125 |
| Symbicort Budesonide/Formoterol Fumarate | 80 |
| Advair Hfa Fluticasone Propion/Salmeterol | 69 |
| Montelukast Sodium | 53 |
| Erythromycin Erythromycin Base | 50 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 32 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in AZ →
All providers in Arizona →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Neil Clements, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
Neil Clements, MD's 1,686 claims are above the specialty average of 1,069.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Clements.
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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine (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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore Arizona
Frequently Asked Questions
What is Neil Clements, MD's specialty? ▼
Neil Clements, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Tucson, Arizona. Credentials: MD.
How much does Neil Clements, MD prescribe under Medicare Part D? ▼
In 2023, Neil Clements, MD wrote 1,686 Medicare Part D claims totaling $1.3M in drug costs for 317 beneficiaries.
Where is Neil Clements, MD located? ▼
Neil Clements, MD is located at 9420 E GOLF LINK ROAD, STE 108, Tucson, AZ, 85730. Phone: (520) 447-7413.
What is Neil Clements, MD's NPI number? ▼
Neil Clements, MD's National Provider Identifier (NPI) is 1013909365, issued on 08/22/2005.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Neil Clements, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Neil Clements, MD's most frequently prescribed drugs include Prednisone, Albuterol Sulfate Hfa, Trelegy Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Neil Clements, MD accept Medicare? ▼
Neil Clements, MD appears in CMS Medicare data with 1,686 Part D claims and 317 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Neil Clements, MD's credentials? ▼
Neil Clements, MD's NPI is 1013909365 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.
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.