NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1588824593 MD
Verify on CMS → Alisa Alker, MD
Infectious Disease Physician in Asheville, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease 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
985
Medicare Part D claims · 94 beneficiaries · Infectious Disease Physician avg: 816
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Alisa Alker, MD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 985 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 985
- 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.
Alisa Alker, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Alisa Alker, MD sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Alisa Alker, MD writes more Part D claims than 81% of them and scores higher on MIPS quality than 91% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Alisa Alker, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Alisa Alker, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Alisa Alker, MD?
High performer (top quartile)Primary specialty
Infectious Disease Physician
Medicare Part D claims
985 21% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in North Carolina
How Infectious Disease Physician compares to other specialties among North Carolina providers
Medicare quality performance, MIPS
Alisa Alker, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 100/100 vs national avg 83.1
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).
Alisa Alker, MD appears in the CMS NPPES registry as a Infectious Disease Physician provider holding MD credentials at 53 S FRENCH BROAD AVE, Asheville, NC, 28801, with a listed phone of (828) 258-9635. NPI 1588824593 was issued on 06/12/2008.
Medicare Part D records for calendar year 2023 show 985 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $933K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year, compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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 | 1588824593 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/12/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Alisa Alker, 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.
Mission Health Community Multispecialty Providers LLC
Asheville, NC
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.
985
Total Claims
$933K
Total Drug Cost
94
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,092
- Total Day Supply
- 27,322
- Generic Drug Cost
- $98K
- Antibiotic Claims
- 234
Patient Demographics
- Average Patient Age
- 66.2 years
- Avg HCC Risk Score
- 2.56
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 37, 65-74: 36, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alisa Alker, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tivicay
Tivicay
50 claims
- Biktarvy
Biktarvy
41 claims
- Triumeq
Triumeq
39 claims
- Genvoya
Genvoya
37 claims
- Valacyclovir
Valacyclovir
36 claims
- Ceftriaxone
Ceftriaxone
34 claims
- Doxycycline Hyclate
Doxycycline Hyclate
31 claims
- Cefadroxil
Cefadroxil
30 claims
| Drug | Claims |
|---|---|
| Tivicay Dolutegravir Sodium | 50 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 41 |
| Triumeq Abacavir/Dolutegravir/Lamivudi | 39 |
| Genvoya Elviteg/Cob/Emtri/Tenof Alafen | 37 |
| Valacyclovir Valacyclovir Hcl | 36 |
| Ceftriaxone Ceftriaxone Sodium | 34 |
| Doxycycline Hyclate | 31 |
| Cefadroxil | 30 |
| Cefazolin Sodium | 30 |
| Prezcobix Darunavir/Cobicistat | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Alisa Alker, MD fits within the Infectious Disease Physician landscape nationally.
8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Alisa Alker, MD's 985 claims are above the specialty average of 816.
Nearby Infectious Disease Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Alker.
Dr. Sonali Advani
M.B.B.S., MPH
Durham, NC
Dr. Abayomi Agbebi
M.D.
Salisbury, NC
Dr. Barbara Alexander
M.D.
Durham, NC
Dr. Meera Alexander
MD
Greenville, NC
Dr. William Alexander
MD
Cary, NC
Compare Infectious Disease 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 North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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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Explore North Carolina
Frequently Asked Questions
What is Alisa Alker, MD's specialty? ▼
Alisa Alker, MD specializes in Infectious Disease Physician and practices in Asheville, North Carolina. Credentials: MD.
How much does Alisa Alker, MD prescribe under Medicare Part D? ▼
In 2023, Alisa Alker, MD wrote 985 Medicare Part D claims totaling $933K in drug costs for 94 beneficiaries.
What is Alisa Alker, MD's Medicare quality score? ▼
Alisa Alker, MD has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Alisa Alker, MD located? ▼
Alisa Alker, MD is located at 53 S FRENCH BROAD AVE, Asheville, NC, 28801. Phone: (828) 258-9635.
What is Alisa Alker, MD's NPI number? ▼
Alisa Alker, MD's National Provider Identifier (NPI) is 1588824593, issued on 06/12/2008.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Alisa Alker, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Alisa Alker, MD's most frequently prescribed drugs include Tivicay, Biktarvy, Triumeq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alisa Alker, MD accept Medicare? ▼
Alisa Alker, MD appears in CMS Medicare data with 985 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alisa Alker, MD's credentials? ▼
Alisa Alker, MD's NPI is 1588824593 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.