NPI registry status
Active
2026 NPPES data Vascular Surgery Physician NPI 1558724906 MD
Verify on CMS → Christine Johnson, MD
Vascular Surgery Physician in San Antonio, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,362 in Vascular Surgery 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
80
Medicare Part D claims · 32 beneficiaries · Vascular Surgery Physician avg: 211
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75.8/100
▼ 8 pts below national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Christine Johnson, MD reported a CMS MIPS final score of 75.8/100 - below the 83.5 national average - and filed 80 Medicare Part D claims in 2024.
- 75.8/100
- MIPS score · -8 vs avg
- 80
- Part D claims, 2024
- 54%
- 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 Christine Johnson, MD
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 1558724906), first enumerated 04/02/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 80 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 75.8/100 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
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Christine Johnson, MD's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- 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 1558724906 · Vascular Surgery Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-BELOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1558724906
- ENUM-MID 2016
- TAX-NARROW 4,362
- MIPS-BELOW 75.8/100
- RX-TRACE 80
- BOOK-THIN 263 in Texas
- PHOTO-FINISH Gary Breitbart, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Johnson · this p…
Johnson · this provider
75.8 MIPS pts
- Satishkiran Kedi…
Satishkiran Kedika, MD
75.8 MIPS pts
- Gary Breitbart, …
Gary Breitbart, M.D.
75.8 MIPS pts
- Jeffrey Hager, D…
Jeffrey Hager, D.O.
75.8 MIPS pts
- Vikalp Jain, MD …
Vikalp Jain, MD
75.8 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christine Johnson, MD'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.
76 ≥ 15th percentile 15% 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 Christine Johnson, MD sits
This provider among vascular surgery physician peers
Across the 1,225 vascular surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christine Johnson, MD writes more Part D claims than 33% of them and scores higher on MIPS quality than 14% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one vascular surgery physician peer from a representative sample of 60; the gold marker is Christine Johnson, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christine Johnson, 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 Christine Johnson, MD?
Below national averagePrimary specialty
Vascular Surgery Physician
Medicare Part D claims
80 62% vs specialty avg
MIPS final score
75.8/100 7.7 pts vs avg
Specialty distribution in Texas
How Vascular Surgery Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
Christine Johnson, MD's 2023 MIPS final score plotted against the Vascular Surgery Physician national average
- MIPS Final Score
- 75.8/100
- 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 | 1558724906 |
|---|---|
| Specialty | Vascular Surgery Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/02/2016 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75.8231
Final Score
Measured-score avg: 83.5
65.7598
Quality
44.4839
Cost
91
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Christine Johnson, 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.
Bhs Physicians Network, Inc
San Antonio, TX
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 - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Christine Johnson, MD. To verify Christine Johnson, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Christine Johnson, MD - brand share 46.0%
Vascular Surgery Physician average
46% brand-name claims vs 54% generic, on 80 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.
80
Total Claims
$32K
Total Drug Cost
32
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 118
- Total Day Supply
- 3,307
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $765
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 3.21
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Xarelto Rivaroxaban | 32 |
| Clopidogrel Clopidogrel Bisulfate | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Surgery Physician Overview
How Christine Johnson, MD fits within the Vascular Surgery Physician landscape nationally.
4,362
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
211
Avg Claims per Provider
Christine Johnson, MD's 80 claims are below the specialty average of 211.
Nationwide Vascular Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside Texas so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75.8 here).
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Vascular Surgery Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Johnson.
One of 263 Vascular Surgery Physician providers enrolled in Texas, 5 are shown here.
Dr. Rana Afifi
MD
Houston, TX
Dr. Gilbert Aidinian
M.D.
El Paso, TX
Dr. Abdul-Qader Alarhayem
M.D.
Amarillo, TX
Dr. Daniel Alfson
M.D.
Garland, TX
Dr. Ahsan Ali
M.D.
Farmers Branch, TX
Compare Vascular Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christine Johnson, MD's specialty? ▼
Christine Johnson, MD specializes in Vascular Surgery Physician and practices in San Antonio, Texas. Credentials: MD.
How much does Christine Johnson, MD prescribe under Medicare Part D? ▼
In 2024, Christine Johnson, MD wrote 80 Medicare Part D claims totaling $32K in drug costs for 32 beneficiaries.
What is Christine Johnson, MD's Medicare quality score? ▼
Christine Johnson, MD has a CMS MIPS Final Score of 75.8/100 (Quality: 65.8, Cost: 44.5). 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 Christine Johnson, MD located? ▼
Christine Johnson, MD is located at 9153 HUEBNER RD, San Antonio, TX, 78240. Phone: (210) 614-7414.
What is Christine Johnson, MD's NPI number? ▼
Christine Johnson, MD's National Provider Identifier (NPI) is 1558724906, issued on 04/02/2016.
Does Christine Johnson, MD prescribe more brand-name or generic drugs? ▼
Christine Johnson, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $31K in brand drug costs.
How many Vascular Surgery Physician providers are there in the US? ▼
There are 4,362 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 211 Medicare Part D claims per year.
What drugs does Christine Johnson, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Christine Johnson, MD's most frequently prescribed drugs include Xarelto, Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christine Johnson, MD accept Medicare? ▼
Christine Johnson, MD appears in CMS Medicare data with 80 Part D claims and 32 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christine Johnson, MD's credentials? ▼
Christine Johnson, MD's NPI is 1558724906 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 (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.