NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1396079810 MD
Verify on CMS → Chad Lange, MD
Emergency Medicine Physician in Flagstaff, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency 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
91
Medicare Part D claims · 75 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77/100
▼ 6 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Chad Lange, MD reported a CMS MIPS final score of 77/100 - below the 83.1 national average - and filed 91 Medicare Part D claims in 2023.
- 77/100
- MIPS score · -6 vs avg
- 91
- Part D claims, 2023
- 86%
- 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.
Chad Lange, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 24th percentile higher than 24% 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 Chad Lange, MD sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Chad Lange, MD writes more Part D claims than 30% of them and scores higher on MIPS quality than 20% - 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 emergency medicine physician peer from a representative sample of 60; the gold marker is Chad Lange, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Chad Lange, 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 Chad Lange, MD?
Below national averagePrimary specialty
Emergency Medicine Physician
Medicare Part D claims
91 74% vs specialty avg
MIPS final score
77/100 6.1 pts vs avg
Specialty distribution in Arizona
How Emergency Medicine Physician compares to other specialties among Arizona providers
Medicare quality performance, MIPS
Chad Lange, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 77/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 77/100 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).
Chad Lange, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 1200 N BEAVER ST, Flagstaff, AZ, 86001, with a listed phone of (602) 344-5808. NPI 1396079810 was issued on 09/30/2009.
Medicare Part D records for calendar year 2023 show 91 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $3K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 25.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77/100 for the 2023 performance year (Quality 59.7, Cost 63.7), compared with the national average of 83.1.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1396079810 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/30/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.0139
Final Score
Avg: 83.1
59.6635
Quality
63.716
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Chad Lange, 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.
Flagstaff Emergency Physicians
Flagstaff, AZ
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
Chad Lange, MD - brand share 14.0%
Emergency Medicine Physician average
14% brand-name claims vs 86% generic, on 91 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.
91
Total Claims
$3K
Total Drug Cost
75
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 91
- Total Day Supply
- 880
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $714
- Opioid Claims
- 23 (25.3% rate)
- Antibiotic Claims
- 27
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.46
- Gender Split
- 52% female / 48% 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 |
|---|---|
| Morphine Sulfate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Chad Lange, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Chad Lange, MD's 91 claims are below the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Lange.
Dr. Dimyana Abdelmalek
MD
Chinle, AZ
Dr. Linda Abernathy
MD
Tuba City, AZ
Dr. Sameer Aboufadel
DO, MPH
Tucson, AZ
Dr. Josephine Acuna
M.D
Tucson, AZ
Dr. Norberto Adame
MD
Phoenix, AZ
Compare Emergency 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency 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 Arizona
Frequently Asked Questions
What is Chad Lange, MD's specialty? ▼
Chad Lange, MD specializes in Emergency Medicine Physician and practices in Flagstaff, Arizona. Credentials: MD.
How much does Chad Lange, MD prescribe under Medicare Part D? ▼
In 2023, Chad Lange, MD wrote 91 Medicare Part D claims totaling $3K in drug costs for 75 beneficiaries.
What is Chad Lange, MD's Medicare quality score? ▼
Chad Lange, MD has a CMS MIPS Final Score of 77/100 (Quality: 59.7, Cost: 63.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Chad Lange, MD located? ▼
Chad Lange, MD is located at 1200 N BEAVER ST, Flagstaff, AZ, 86001. Phone: (602) 344-5808.
What is Chad Lange, MD's NPI number? ▼
Chad Lange, MD's National Provider Identifier (NPI) is 1396079810, issued on 09/30/2009.
Does Chad Lange, MD prescribe more brand-name or generic drugs? ▼
Chad Lange, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $2K in brand drug costs.
Does Chad Lange, MD prescribe opioids? ▼
Yes, Chad Lange, MD had 23 opioid claims in 2023 with an opioid prescribing rate of 25.3%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Chad Lange, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Chad Lange, MD's most frequently prescribed drugs include Morphine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chad Lange, MD accept Medicare? ▼
Chad Lange, MD appears in CMS Medicare data with 91 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chad Lange, MD's credentials? ▼
Chad Lange, MD's NPI is 1396079810 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
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.