NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1528159522 M.D.
Verify on CMS → Karen Johnson, M.D.
Surgery Physician in Salida, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 36,191 in 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
60
Medicare Part D claims · 39 beneficiaries · Surgery Physician avg: 169
MIPS score
62.6/100
▼ 20 pts below national avg 83.1 · Mid-tier
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Karen Johnson, M.D. reported a CMS MIPS final score of 62.6/100 - below the 83.1 national average - and filed 60 Medicare Part D claims in 2023.
- 62.6/100
- MIPS score · -20 vs avg
- 60
- 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.
Karen Johnson, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
63 6th percentile higher than 6% 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 Karen Johnson, M.D. sits
This provider among surgery physician peers
Across the 7,525 surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Karen Johnson, M.D. writes more Part D claims than 36% of them and scores higher on MIPS quality than 5% - placing this provider in the lower-volume, lower-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 surgery physician peer from a representative sample of 60; the gold marker is Karen Johnson, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Karen Johnson, 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 Karen Johnson, M.D.?
Below national averagePrimary specialty
Surgery Physician
Medicare Part D claims
60 64% vs specialty avg
MIPS final score
62.6/100 20.5 pts vs avg
Specialty distribution in Colorado
How Surgery Physician compares to other specialties among Colorado providers
Medicare quality performance, MIPS
Karen Johnson, M.D.'s 2023 MIPS final score plotted against the Surgery Physician national average
- MIPS Final Score
- 62.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Surgery Physician) - 62.6/100 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).
Karen Johnson, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 1000 RUSH DR, Salida, CO, 81201, with a listed phone of (719) 530-2000. NPI 1528159522 was issued on 09/27/2006.
Medicare Part D records for calendar year 2023 show 60 prescription claims written by this provider, covering 39 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 45.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 62.6/100 for the 2023 performance year (Quality 76.5, Cost 18.4), compared with the national average of 83.1.
Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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 | 1528159522 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 09/27/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
62.6294
Final Score
Avg: 83.1
76.5413
Quality
18.439
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Karen Johnson, 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.
Salida Hospital District
Salida, CO
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.
60
Total Claims
$1K
Total Drug Cost
39
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 60
- Total Day Supply
- 523
- Generic Drug Cost
- $522
- Opioid Claims
- 27 (45.0% rate)
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 0.79
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Karen Johnson, M.D. fits within the Surgery Physician landscape nationally.
36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Karen Johnson, M.D.'s 60 claims are below the specialty average of 169.
Nearby Surgery Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Johnson.
Dr. David Abts
M.D.
Aurora, CO
Dr. Stuart Ackley
MD
Grand Junction, CO
Dr. Muhammad Aftab
M.B.,B,S, MD
Aurora, CO
Dr. Rizwan Ahmed
M.D.
Durango, CO
Dr. Eric Ahnfeldt
D.O.
Fort Carson, CO
Compare Surgery 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 Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgery 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.
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Frequently Asked Questions
What is Karen Johnson, M.D.'s specialty? ▼
Karen Johnson, M.D. specializes in Surgery Physician and practices in Salida, Colorado. Credentials: M.D..
How much does Karen Johnson, M.D. prescribe under Medicare Part D? ▼
In 2023, Karen Johnson, M.D. wrote 60 Medicare Part D claims totaling $1K in drug costs for 39 beneficiaries.
What is Karen Johnson, M.D.'s Medicare quality score? ▼
Karen Johnson, M.D. has a CMS MIPS Final Score of 62.6/100 (Quality: 76.5, Cost: 18.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Karen Johnson, M.D. located? ▼
Karen Johnson, M.D. is located at 1000 RUSH DR, Salida, CO, 81201. Phone: (719) 530-2000.
What is Karen Johnson, M.D.'s NPI number? ▼
Karen Johnson, M.D.'s National Provider Identifier (NPI) is 1528159522, issued on 09/27/2006.
Does Karen Johnson, M.D. prescribe opioids? ▼
Yes, Karen Johnson, M.D. had 27 opioid claims in 2023 with an opioid prescribing rate of 45.0%.
How many Surgery Physician providers are there in the US? ▼
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Karen Johnson, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Johnson, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Johnson, M.D. accept Medicare? ▼
Karen Johnson, M.D. appears in CMS Medicare data with 60 Part D claims and 39 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Johnson, M.D.'s credentials? ▼
Karen Johnson, M.D.'s NPI is 1528159522 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 (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.