NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1639497001 M.D.
Verify on CMS → Christopher Schirtzinger, M.D.
Infectious Disease Physician in Charleston, West Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,537 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
109
Medicare Part D claims · 40 beneficiaries · Infectious Disease Physician avg: 807
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.1/100
▲ 7 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Christopher Schirtzinger, M.D. reported a CMS MIPS final score of 90.1/100 - above the 83.5 national average - and filed 109 Medicare Part D claims in 2024.
- 90.1/100
- MIPS score · +7 vs avg
- 109
- Part D claims, 2024
- 90%
- 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.
Federal trust snapshot
What official records show about Christopher Schirtzinger, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639497001), first enumerated 05/11/2010.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 109 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 90.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1639497001 · Infectious Disease Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-ABOVE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1639497001
- ENUM-MID 2010
- TAX-MID 9K Infectious Disease
- MIPS-ABOVE 90.1/100
- RX-LIGHT 109
- BOOK-THIN 31 in West Virginia
- PHOTO-FINISH Ye Oo · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Schirtzinger · t…
Schirtzinger · this provider
90.1 MIPS pts
- Kyle Humphrey · …
Kyle Humphrey
90.1 MIPS pts
- Ye Oo · near
Ye Oo
90.1 MIPS pts
- Roxana Samimi · …
Roxana Samimi
90.1 MIPS pts
- Eliot Godofsky ·…
Eliot Godofsky
90.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christopher Schirtzinger, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
90 ≥ 58th percentile 58% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Christopher Schirtzinger, M.D. sits
This provider among infectious disease physician peers
Across the 2,130 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christopher Schirtzinger, M.D. writes more Part D claims than 19% of them and scores higher on MIPS quality than 59% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Christopher Schirtzinger, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christopher Schirtzinger, M.D. 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 Christopher Schirtzinger, M.D.?
High performer (top quartile)Primary specialty
Infectious Disease Physician
Medicare Part D claims
109 86% vs specialty avg
MIPS final score
90.1/100 6.6 pts vs avg
Specialty distribution in West Virginia
How Infectious Disease Physician compares to other specialties among West Virginia providers
Medicare quality performance, MIPS
Christopher Schirtzinger, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 90.1/100
- vs 83.5 national avg · 2023 performance year
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 | 1639497001 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/11/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.1191
Final Score
Measured-score avg: 83.5
66.9698
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Christopher Schirtzinger, M.D. 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.
Charleston Area Medical Center Inc
Hurricane, WV
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Christopher Schirtzinger, M.D. - brand share 10.0%
Infectious Disease Physician average
10% brand-name claims vs 90% generic, on 109 2024 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 2024.
109
Total Claims
$110K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 109
- Total Day Supply
- 808
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $38K
- Generic Drug Cost
- $72K
- Antibiotic Claims
- 102
Patient Demographics
- Average Patient Age
- 67.7 years
- Avg HCC Risk Score
- 3.43
- Gender Split
- 38% female / 63% male
- Age Distribution
- <65: 14, 65-74: 16, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christopher Schirtzinger, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ertapenem
Ertapenem
30 claims
- Daptomycin
Daptomycin
24 claims
- Piperacillin-Tazob…
Piperacillin-Tazobactam
18 claims
- Cefazolin Sodium
Cefazolin Sodium
15 claims
| Drug | Claims |
|---|---|
| Ertapenem Ertapenem Sodium | 30 |
| Daptomycin | 24 |
| Piperacillin-Tazobactam Piperacillin Sodium/Tazobactam | 18 |
| Cefazolin Sodium | 15 |
* 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 Christopher Schirtzinger, M.D. fits within the Infectious Disease Physician landscape nationally.
8,537
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
807
Avg Claims per Provider
Christopher Schirtzinger, M.D.'s 109 claims are below the specialty average of 807.
Nationwide Infectious Disease Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Schirtzinger, both outside West Virginia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (90.1 here).
Same NPPES enumeration year (2010)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Infectious Disease Physician Providers in West Virginia
Other clinicians with the same primary specialty enrolled in West Virginia, drawn from the same CMS NPPES roster as Schirtzinger.
One of 31 Infectious Disease Physician providers enrolled in West Virginia, 5 are shown here.
Dr. Victor Rizal Arcega
M.D.
Wheeling, WV
Dr. Seyoum Bage
M.D.
Vienna, WV
Dr. Karl Brown
MD
Martinsburg, WV
Dr. Dino Delaportas
M.D.
Bridgeport, WV
Dr. Anthony Dinh
MD
Beckley, WV
Compare Infectious Disease Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christopher Schirtzinger, M.D.'s specialty? ▼
Christopher Schirtzinger, M.D. specializes in Infectious Disease Physician and practices in Charleston, West Virginia. Credentials: M.D..
How much does Christopher Schirtzinger, M.D. prescribe under Medicare Part D? ▼
In 2024, Christopher Schirtzinger, M.D. wrote 109 Medicare Part D claims totaling $110K in drug costs for 40 beneficiaries.
What is Christopher Schirtzinger, M.D.'s Medicare quality score? ▼
Christopher Schirtzinger, M.D. has a CMS MIPS Final Score of 90.1/100 (Quality: 67). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Christopher Schirtzinger, M.D. located? ▼
Christopher Schirtzinger, M.D. is located at 3100 MACCORKLE AVE SE, Charleston, WV, 25304. Phone: (304) 345-5421.
What is Christopher Schirtzinger, M.D.'s NPI number? ▼
Christopher Schirtzinger, M.D.'s National Provider Identifier (NPI) is 1639497001, issued on 05/11/2010.
Does Christopher Schirtzinger, M.D. prescribe more brand-name or generic drugs? ▼
Christopher Schirtzinger, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $38K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,537 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 807 Medicare Part D claims per year.
What drugs does Christopher Schirtzinger, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Christopher Schirtzinger, M.D.'s most frequently prescribed drugs include Ertapenem, Daptomycin, Piperacillin-Tazobactam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Schirtzinger, M.D. accept Medicare? ▼
Christopher Schirtzinger, M.D. appears in CMS Medicare data with 109 Part D claims and 40 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Schirtzinger, M.D.'s credentials? ▼
Christopher Schirtzinger, M.D.'s NPI is 1639497001 with credentials M.D.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.