NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1376994616 MD
Verify on CMS → Sarah Allexan, MD
Internal Medicine Physician in Canton, Michigan.
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
1K
Medicare Part D claims · 198 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sarah Allexan, MD filed 1,385 Medicare Part D claims in 2023 as a Internal Medicine Physician in Canton, Michigan, prescribing 87% generic.
- 1K
- Part D claims, 2023
- 87%
- 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.
Sarah Allexan, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,385 Top 21% higher than 79% 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)
Sarah Allexan, 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 Sarah Allexan, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
1,385 49% vs specialty avg
Specialty distribution in Michigan
How Internal Medicine Physician compares to other specialties among Michigan 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).
Sarah Allexan, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 1051 N CANTON CENTER RD, Canton, MI, 48187, with a listed phone of (734) 998-2020. NPI 1376994616 was issued on 06/28/2016.
Medicare Part D records for calendar year 2023 show 1,385 prescription claims written by this provider, covering 198 Medicare beneficiaries and totaling roughly $135K in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 3.2%.
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
Provider Details
| NPI | 1376994616 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/28/2016 |
Hospital and facility affiliations
Facilities where Sarah Allexan, 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.
Regents OF The University OF Michigan
Ann Arbor, MI
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 - Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Sarah Allexan, MD. To verify Sarah Allexan, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Sarah Allexan, MD - brand share 12.0%
Internal Medicine Physician average
12% brand-name claims vs 87% generic, on 1,385 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.
1,385
Total Claims
$135K
Total Drug Cost
198
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,955
- Total Day Supply
- 85,244
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $104K
- Generic Drug Cost
- $30K
- Opioid Claims
- 44 (3.2% rate)
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sarah Allexan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
95 claims
- Amlodipine Besylate
Amlodipine Besylate
66 claims
- Losartan Potassium
Losartan Potassium
66 claims
- Omeprazole
Omeprazole
64 claims
- Levothyroxine Sodium
Levothyroxine Sodium
55 claims
- Gabapentin
Gabapentin
52 claims
- Lisinopril
Lisinopril
41 claims
- Bupropion Xl 36
Bupropion Xl
36 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 95 |
| Amlodipine Besylate | 66 |
| Losartan Potassium | 66 |
| Omeprazole | 64 |
| Levothyroxine Sodium | 55 |
| Gabapentin | 52 |
| Lisinopril | 41 |
| Bupropion Xl Bupropion Hcl | 36 |
| Metformin Hcl Er Metformin Hcl | 34 |
| Fluticasone Propionate | 28 |
* 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 Sarah Allexan, 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
Sarah Allexan, MD's 1,385 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Allexan.
Dr. Keith Aaronson
MD
Ann Arbor, MI
Dr. Tomas Abalo
M.D.
Iron Mountain, MI
Dr. Ali Abbas
M.D.
Pontiac, MI
Dr. Hawazin Abbas
MD
Auburn Hills, MI
Dr. Imran Abbasi
D.O.
Warren, MI
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 Michigan 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.
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 Michigan
Frequently Asked Questions
What is Sarah Allexan, MD's specialty? ▼
Sarah Allexan, MD specializes in Internal Medicine Physician and practices in Canton, Michigan. Credentials: MD.
How much does Sarah Allexan, MD prescribe under Medicare Part D? ▼
In 2023, Sarah Allexan, MD wrote 1,385 Medicare Part D claims totaling $135K in drug costs for 198 beneficiaries.
Where is Sarah Allexan, MD located? ▼
Sarah Allexan, MD is located at 1051 N CANTON CENTER RD, Canton, MI, 48187. Phone: (734) 998-2020.
What is Sarah Allexan, MD's NPI number? ▼
Sarah Allexan, MD's National Provider Identifier (NPI) is 1376994616, issued on 06/28/2016.
Does Sarah Allexan, MD prescribe more brand-name or generic drugs? ▼
Sarah Allexan, MD's prescribing is 12% brand-name and 87% generic drugs by claim count, with $104K in brand drug costs.
Does Sarah Allexan, MD prescribe opioids? ▼
Yes, Sarah Allexan, MD had 44 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
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 Sarah Allexan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Allexan, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Allexan, MD accept Medicare? ▼
Sarah Allexan, MD appears in CMS Medicare data with 1,385 Part D claims and 198 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Allexan, MD's credentials? ▼
Sarah Allexan, MD's NPI is 1376994616 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.