Dr. Lois E. Krahn, MD
- Medicare services, 2024
- 315
- Medicare patients, 2024
- 259
- Part D claims, 2024
- 162
- Publications
- 93
- Clinical trials
- 3
- Practice address
- 5777 East Mayo Boulevard, Phoenix, AZ 85054
- Practice phone
- Call (480) 342-4201
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Krahn'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. Lois E. Krahn is a psychiatrist in Phoenix, Arizona
Dr. Krahn practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic.
Dr. Krahn's NPI, 1568446854, was assigned on December 1, 2005. Dr. Krahn graduated from Mayo Clinic Alix School of Medicine - Rochester in 1989. Dr. Krahn holds Minnesota license 35723.
- NPI
- 1568446854NPI Registry (opens in a new tab)
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Practice phone
- (480) 342-4201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Lois E. Krahn practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona
Dr. Krahn's primary practice is Mayo Clinic Hospital - Phoenix, at 5777 East Mayo Boulevard, Phoenix, AZ 85054 in Maricopa County. The practice phone is (480) 342-4201.
- Mayo Clinic Hospital - Phoenix5777 East Mayo Boulevard, Phoenix, AZ 85054 · Maricopa CountyPhone(480) 342-4201
Source: Dmand AI Affiliation Data
Dr. Lois E. Krahn is affiliated with 2 sites of care and 2 medical groups
Dr. Krahn's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Krahn to 1 more ambulatory surgery center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lois E. Krahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krahn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital - Phoenix | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lois E. Krahn is one of 647 psychiatrists in Arizona
Psychiatry is Dr. Krahn's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Krahn is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Krahn's licenses on file in 4 states: Minnesota, Arizona, Florida and Maryland.
Specialties and state licenses
- Psychiatry, MinnesotaPrimary
- Arizona license
- Florida license
- Maryland license
Clinical focus
Dmand AI lists depression and insomnia among the conditions Dr. Krahn treats.
Psychiatrists near Dr. Krahn
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lois E. Krahn billed Medicare for 315 services in 2024
CMS data shows 315 Medicare services from Dr. Krahn across 9 procedure codes in 2024, for 259 Medicare patients. Medicare paid $26,118 for them.
Dr. Krahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1452024: 18024%
- Tests and treatments
- 2023: 2052024: 10549%
- Other services
- 2023: 312024: 303%
Where Dr. Krahn's Medicare services took place, 2024
- In an office7423%
- In a facility24177%
Dr. Krahn compared with the Arizona median for psychiatrists, 2024
- Dr. Krahn
- Arizona median
- Medicare services
- 315vs 1182.7 times
- Medicare patients
- 259vs 386.8 times
- Part D claims
- 68vs 14051% below
Medians across 712 psychiatrists in Arizona with Dmand AI profiles that report each measure.
Dr. Krahn'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Krahn and other psychiatrists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lois E. Krahn treated 259 Medicare patients in 2024, average age 74
CMS counts 259 Medicare patients who saw Dr. Krahn in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Krahn's median patient age at 61, with 53% women.
Dr. Krahn's Medicare patients by age, 2024
Dr. Krahn's Medicare patients by sex, 2024
- Women11444%
- Men14556%
Chronic conditions among Dr. Krahn's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Ischemic heart disease37%
- Atrial fibrillation29%
- Anxiety28%
- Chronic kidney disease28%
- Mood disorders28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Krahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lois E. Krahn wrote 162 Medicare Part D claims in 2024
In 2024, Dr. Krahn wrote 162 Medicare Part D claims for 26 patients. 88% of them were for generic drugs. CMS names the drug for 68 of them, across 4 drugs with 11 or more claims each, at $413 in total drug cost. In 2023, CMS named 105 claims across 8 drugs.
Dr. Krahn's Part D claims by kind of drug, 2024
- Generic143 claims88%
- Brand-name19 claims12%
Dr. Krahn'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1052024: 6835%
Drugs named by CMS: 4 in 2024, 8 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
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Dr. Lois E. Krahn has 93 publications on record
Dmand AI links 93 papers to Dr. Krahn, published from 2003 to 2025. 2015 was the busiest year, with 3. The most frequent topics are Narcolepsy, Cataplexy and Depressive Disorder. Dr. Krahn has published most often in Mayo Clin Proc. Dr. Krahn's most frequent co-authors are Teresa A. Rummans, MD, Bradley F. Boeve, MD and Philip J. Lyng, MD.
Dr. Krahn's papers by year, 2015 to 2025
Topics Dr. Krahn writes about most
- Narcolepsy
- Cataplexy
- Depressive Disorder
- Polysomnography
- Diagnosis, Differential
- Double-Blind Method
- Sleep
- Sleep Apnea, Obstructive
Dr. Krahn's most frequent co-authors
- Teresa A. Rummans, MD10 shared papers
- Bradley F. Boeve, MD5 shared papers
- Philip J. Lyng, MD4 shared papers
Recent publications by Dr. Krahn
See who Dr. Krahn researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Krahn works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lois E. Krahn has worked on 3 clinical trials
Dmand AI links Dr. Krahn to 3 clinical trials, 2 of them phase 2 studies. Conditions studied include Cataplexy and Narcolepsy. Takeda sponsors the most, 2.
Conditions in Dr. Krahn's trials
- Cataplexy
- Narcolepsy
Investigators on the most trials with Dr. Krahn
- James Michael Andry, MD3 shared trials
- Anup Banerjee, MD3 shared trials
- Bruce Clayton Corser, MD3 shared trials
Recent clinical trials with Dr. Krahn
A Study to Evaluate Safety, and Efficacy of SUVN-G3031 (Samelisant) in Patients With Narcolepsy With and Without Cataplexy (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Lois E. Krahn received $36,778 in industry payments from 2016 to 2025
CMS Open Payments shows 46 general payments to Dr. Krahn from 6 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 84% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $27,664. It also lists 4 research payments totaling $1,955 in 2023.
General payments to Dr. Krahn by program year, 2016 to 2025
General payments to Dr. Krahn by kind, 2016 to 2025
- Consulting fees$30,94484%
- Travel and lodging$3,85310%
- Food and beverage$1,9815%
Companies that paid Dr. Krahn the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lois E. Krahn has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Krahn, most recently Top Doctors:Arizona State in 2013.
Awards and honors for Dr. Krahn
- 2013
- Top Doctors:Arizona State
- Undated
- Checkbook Top Doc
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Lois E. Krahn graduated from Mayo Clinic Alix School of Medicine - Rochester
Dr. Krahn graduated from Mayo Clinic Alix School of Medicine - Rochester in 1989.
- Medical school
- Board certified in addiction psychiatry
- Board certified in psychiatry
- Board certified in sleep medicine
Source: Dmand AI Professional Profile Data
Dr. Lois E. Krahn accepts plans from 5 insurance carriers
Dr. Krahn is in network with 5 carriers, including Excellus BlueCross BlueShield, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- United Healthcare
- CMS Medicare
- Delta Dental
- WI State Medicaid
Plan types Dr. Krahn accepts, by number of carriers
- Medicare2
- POS2
- PPO2
- EPO1
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lois E. Krahn'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Lois E. Krahn
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. Lois E. Krahn's NPI number?
Dr. Lois E. Krahn's NPI number is 1568446854. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Lois E. Krahn?
Dr. Lois E. Krahn is a psychiatrist in Phoenix, Arizona. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Lois E. Krahn practice?
Dr. Krahn practices at 5777 East Mayo Boulevard, Phoenix, AZ 85054. Dr. Krahn's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. Dmand AI also links Dr. Krahn to 1 ambulatory surgery center and 1 medical group.
What is Dr. Lois E. Krahn's office phone number?
The practice phone on file for Dr. Krahn is (480) 342-4201.
What is Dr. Lois E. Krahn's medical license number?
Dr. Krahn holds Minnesota license 35723, one of the licenses on file in 4 states.
Which states has Dr. Lois E. Krahn been licensed in?
Dmand AI has state licenses on file for Dr. Krahn in Minnesota (1992 to 2026), Arizona (2003 to 2027), Florida (1995 to 2025) and Maryland (1991 to 1992).
Which hospitals is Dr. Lois E. Krahn affiliated with?
Dr. Krahn practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona.
What medical group is Dr. Lois E. Krahn part of?
Dr. Krahn is linked to Mayo Clinic. Dmand AI links Dr. Krahn to 1 more medical group.
Does Dr. Lois E. Krahn accept Medicare?
Yes. CMS data shows Dr. Krahn billed Medicare for 315 services in 2024.
How many Medicare patients does Dr. Lois E. Krahn see?
CMS counts 259 Medicare patients who saw Dr. Krahn in 2024, with an average age of 74.
Show 9 more questionsShow fewer questions
Is Dr. Lois E. Krahn board certified?
Yes. Dr. Krahn is board certified in addiction psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Lois E. Krahn bill to Medicare?
In 2024, Dr. Krahn's most billed Medicare services were office visit, new patient (99204), office visit, new patient (99205) and lung function service (94660).
Where did Dr. Lois E. Krahn go to medical school?
Dr. Krahn graduated from Mayo Clinic Alix School of Medicine - Rochester in 1989.
What drugs does Dr. Lois E. Krahn prescribe most?
In 2024 Medicare Part D data, Dr. Krahn's most prescribed drugs by claims were Clonazepam, Trazodone HCl and Zolpidem Tartrate.
Has Dr. Lois E. Krahn received payments from drug or device companies?
CMS Open Payments shows $36,778 in general payments to Dr. Krahn from 6 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Lois E. Krahn been practicing?
Dr. Krahn graduated from medical school in 1989, 37 years ago.
Does Dr. Lois E. Krahn do research?
Dmand AI links 93 publications to Dr. Krahn, published from 2003 to 2025. Dr. Krahn has worked on 3 clinical trials.
Who does Dr. Lois E. Krahn publish with?
Dr. Krahn's most frequent co-authors are Teresa A. Rummans, MD (10 shared papers), Bradley F. Boeve, MD (5 shared papers) and Philip J. Lyng, MD (4 shared papers).
What insurance does Dr. Lois E. Krahn accept?
Dr. Krahn is in network with 5 carriers, including Excellus BlueCross BlueShield, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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