Dr. Lois E. Krahn, MD

  • Phoenix, AZ
  • Psychiatrist
NPI1568446854
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Hospital - Phoenix

Hospital · Phoenix, Arizona

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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 and contact details
NPI enumeration date
December 1, 2005
NPI status
Active
Practice phone
(480) 342-4201
Professional email
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Personal email
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Mobile number
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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.

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.

See all 4 affiliations for Dr. Krahn

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.

EHR by site
SiteEHR vendor and product
Mayo Clinic Hospital - PhoenixAvailable with a free account
+1 more site and 1 medical groupAvailable 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, MinnesotaPrimaryLicense 35723 · 1992 to 2026 · taxonomy 2084P0800X
  • Arizona licenseLicense 31589 · 2003 to 2027
  • Florida license1995 to 2025
  • Maryland license1991 to 1992

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.

Medicare services, 2024315
Medicare patients259
Paid by Medicare$26,118
Procedure codes9

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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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.

Medicare patients, 2024259
Average age74
Average risk score1.35

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis47%
  4. Ischemic heart disease37%
  5. Atrial fibrillation29%
  6. Anxiety28%
  7. Chronic kidney disease28%
  8. 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.

Part D claims, 2024162
Drugs named by CMS4
Total drug cost$413
Part D patients26

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.

See all prescribing by Dr. Krahn

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.

Papers93
Years published2003 to 2025

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

Recent publications by Dr. Krahn

See all 93 publications and co-authors

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.

How network discovery works

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

Recent clinical trials with Dr. Krahn

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

$36.8Kin total
  • 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.

See all payments to Dr. Krahn

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

  1. 2013
    • Top Doctors:Arizona State
  2. 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.

  1. Medical schoolMayo Clinic Alix School of Medicine - Rochester
  2. Board certified in addiction psychiatryAmerican Board of Psychiatry and Neurology
  3. Board certified in psychiatryAmerican Board of Psychiatry and Neurology
  4. Board certified in sleep medicineAmerican Board of Psychiatry and Neurology

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

  1. Medicare2
  2. POS2
  3. PPO2
  4. EPO1
  5. HMO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Lois E. Krahn's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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