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Dr. Michael J. Krein, MD
NPI1457641755PAC ID0042443681
- Medicare services, 2024
- 851
- Medicare patients, 2024
- 835
- Part D claims, 2024
- 643
- Publications
- 2
- MIPS score, 2024
- 50
- Practice address
- 6644 East Baywood Avenue, Mesa, AZ 85206
- Practice phone
- Call (480) 321-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Krein's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael J. Krein is an emergency medicine physician in Mesa, Arizona
Dr. Krein practices at Banner Baywood Medical Center in Mesa, Arizona, part of Banner Health.
Dr. Krein's NPI, 1457641755, was assigned on April 8, 2011. Dr. Krein graduated from Carver College of Medicine in 2011. Dr. Krein's Texas license number on file is P5097.
NPI and contact details
- NPI
- 1457641755NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042443681
- NPI enumeration date
- April 8, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 321-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Krein practices at Banner Baywood Medical Center in Mesa, Arizona
Dr. Krein's primary practice is Banner Baywood Medical Center, at 6644 East Baywood Avenue, Mesa, AZ 85206 in Maricopa County. The practice phone is (480) 321-2000.
- Banner Baywood Medical Center6644 East Baywood Avenue, Mesa, AZ 85206 · Maricopa CountyPhone(480) 321-2000
Source: Dmand AI Affiliation Data
Dr. Michael J. Krein is affiliated with 2 sites of care and 5 medical groups
Dr. Krein's primary practice is Banner Baywood Medical Center in Mesa, Arizona, part of Banner Health. The medical group on file is Banner Baywood Emergency. Dmand AI also links Dr. Krein to 4 more medical groups and 1 breast imaging center, each named with a free account.
Banner Baywood Emergency4 medical groupsNames with a free account1 breast imaging centerName with a free account
See all 7 affiliations for Dr. KreinSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael J. Krein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Banner Baywood Medical Center | Available with a free account |
| +1 more site and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Krein is one of 1,360 emergency medicine physicians in Arizona
Emergency medicine is Dr. Krein's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Krein is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Krein's licenses on file in 2 states: Texas and Arizona.
Specialties and state licenses
- Emergency medicine, TexasPrimary
- Arizona license
Emergency medicine physicians near Dr. Krein
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
1,360emergency medicine physicians in Arizona54emergency medicine physicians in Mesa10emergency medicine physicians at Banner Baywood Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael J. Krein billed Medicare for 851 services in 2024
CMS data shows 851 Medicare services from Dr. Krein across 5 procedure codes in 2024, for 835 Medicare patients. Medicare paid $108,839 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024851
Medicare patients835
Paid by Medicare$108,839
Procedure codes5
Dr. Krein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8472024: 8381%
- Tests and treatments
- 2023: 02024: 13
- Surgery
- 2023: 112024: 0100%
Dr. Krein compared with the Arizona median for emergency medicine physicians, 2024
- Dr. Krein
- Arizona median
- Medicare services
- 851vs 2163.9 times
- Medicare patients
- 835vs 2104.0 times
- Part D claims
- 448vs 509.0 times
Medians across 1,326 emergency medicine physicians in Arizona with Dmand AI profiles that report each measure.
Dr. Krein's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Krein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Krein and other emergency medicine physicians in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Krein treated 835 Medicare patients in 2024, average age 78
CMS counts 835 Medicare patients who saw Dr. Krein in 2024. The largest group is 75 to 84, with 366 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Krein's median patient age at 67, with 52% women.
Medicare patients, 2024835
Average age78
Average risk score1.95
Also on Medicaid10%
Dr. Krein's Medicare patients by age, 2024
Dr. Krein's Medicare patients by sex, 2024
- Women44053%
- Men39547%
Chronic conditions among Dr. Krein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Ischemic heart disease50%
- Chronic kidney disease46%
- Atrial fibrillation41%
- Diabetes38%
- Heart failure37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Krein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Krein wrote 643 Medicare Part D claims in 2024
In 2024, Dr. Krein wrote 643 Medicare Part D claims for 430 patients. 96% of them were for generic drugs. CMS names the drug for 448 of them, across 16 drugs with 11 or more claims each, at $4,141 in total drug cost. In 2023, CMS named 439 claims across 14 drugs.
Part D claims, 2024643
Drugs named by CMS16
Total drug cost$4,141
Part D patients430
Dr. Krein's Part D claims by kind of drug, 2024
- Generic617 claims96%
- Brand-name and other26 claims4%
Dr. Krein's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Krein's Part D claims, 2024
- Opioids19%124 of 643 claims
- Antibiotics33%213 of 643 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4392024: 4482%
Drugs named by CMS: 16 in 2024, 14 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael J. Krein scored 50 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 50 out of 100 for Dr. Krein for performance year 2024, reported individually. Dr. Krein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Krein's MIPS scores, performance year 2024
- 50of 100Final score
- 17.5of 100Quality
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Krein has 2 publications on record
Dmand AI links 2 papers to Dr. Krein in 2011. Dr. Krein's most frequent co-authors are Maen M. Masadeh, MBBS, Aimen F. Shaaban, MD and Joel Shilyansky, MD.
Papers2
Dr. Krein's most frequent co-authors
- Maen M. Masadeh, MBBS1 shared paper
- Aimen F. Shaaban, MD1 shared paper
- Joel Shilyansky, MD1 shared paper
Recent publications by Dr. Krein
J Pediatr Surg
CecostomyEnemaEnterostomy
See who Dr. Krein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Krein works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael J. Krein received $143 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Krein from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Astute Medical, Inc. paid the most, $143.
Companies that paid Dr. Krein the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Krein graduated from Carver College of Medicine
Dr. Krein graduated from Carver College of Medicine in 2011.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Michael J. Krein accepts plans from 14 insurance carriers
Dr. Krein is in network with 14 carriers, including Aetna, United Healthcare and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Alliant Health Plans
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +6 more carriersWith a free account
Plan types Dr. Krein accepts, by number of carriers
- HMO8
- PPO8
- POS4
- EPO2
- Medicare2
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael J. Krein's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael J. Krein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael J. Krein's NPI number?
Dr. Michael J. Krein's NPI number is 1457641755. It was assigned on April 8, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Krein?
Dr. Michael J. Krein is an emergency medicine physician in Mesa, Arizona. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael J. Krein practice?
Dr. Krein practices at 6644 East Baywood Avenue, Mesa, AZ 85206. Dr. Krein's primary practice is Banner Baywood Medical Center in Mesa, Arizona, part of Banner Health. Dmand AI also links Dr. Krein to 4 medical groups and 1 breast imaging center.
What is Dr. Michael J. Krein's office phone number?
The practice phone on file for Dr. Krein is (480) 321-2000.
What is Dr. Michael J. Krein's medical license number?
Dr. Krein's Texas license number on file is P5097, one of the licenses on file in 2 states.
Which states has Dr. Michael J. Krein been licensed in?
Dmand AI has state licenses on file for Dr. Krein in Texas (2012 to 2019) and Arizona (2018 to 2026).
Which hospitals is Dr. Michael J. Krein affiliated with?
Dr. Krein practices at Banner Baywood Medical Center in Mesa, Arizona.
What medical group is Dr. Michael J. Krein part of?
Dr. Krein is linked to Banner Baywood Emergency. Dmand AI links Dr. Krein to 4 more medical groups.
Does Dr. Michael J. Krein accept Medicare?
Yes. CMS data shows Dr. Krein billed Medicare for 851 services in 2024, and Dr. Krein accepts Medicare assignment.
What is Dr. Michael J. Krein's MIPS score?
Dr. Krein's MIPS final score for performance year 2024 is 50 out of 100, reported individually.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Michael J. Krein see?
CMS counts 835 Medicare patients who saw Dr. Krein in 2024, with an average age of 78.
Is Dr. Michael J. Krein board certified?
Yes. Dr. Krein is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Michael J. Krein bill to Medicare?
In 2024, Dr. Krein's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
Where did Dr. Michael J. Krein go to medical school?
Dr. Krein graduated from Carver College of Medicine in 2011.
What drugs does Dr. Michael J. Krein prescribe most?
In 2024 Medicare Part D data, Dr. Krein's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cefdinir and Amoxicillin-Clavulanate Potass.
Has Dr. Michael J. Krein received payments from drug or device companies?
CMS Open Payments shows $143 in general payments to Dr. Krein from 1 company from 2017 to 2017. The largest total came from Astute Medical, Inc.
How long has Dr. Michael J. Krein been practicing?
Dr. Krein graduated from medical school in 2011, 15 years ago.
Does Dr. Michael J. Krein do research?
Dmand AI links 2 publications to Dr. Krein.
Who does Dr. Michael J. Krein publish with?
Dr. Krein's most frequent co-authors are Maen M. Masadeh, MBBS (1 shared paper), Aimen F. Shaaban, MD (1 shared paper) and Joel Shilyansky, MD (1 shared paper).
What insurance does Dr. Michael J. Krein accept?
Dr. Krein is in network with 14 carriers, including Aetna, United Healthcare and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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