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Dr. Stephen Marcus Larsen, MD
NPI1215165584PAC ID3870803059
- Medicare services, 2024
- 1,543
- Medicare patients, 2024
- 579
- Part D claims, 2024
- 986
- Publications
- 8
- Hospital affiliations
- 5
- Practice address
- 13555 W McDowell Rd, Goodyear, AZ 85395
- Practice phone
- Call (623) 512-4390
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arizona Urology
Goodyear, Arizona
Find Dr. Larsen's professional email, personal email and mobile number
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Dr. Stephen Marcus Larsen is a urologist in Goodyear, Arizona
Dr. Larsen practices at Arizona Urology in Goodyear, Arizona.
Dr. Larsen's NPI, 1215165584, was assigned on June 25, 2009. Dr. Larsen graduated from Rush Medical College of Rush University in 2009. Dr. Larsen holds Arizona license 50775.
NPI and contact details
- NPI
- 1215165584NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870803059
- NPI enumeration date
- June 25, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (623) 512-4390
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Marcus Larsen practices at Arizona Urology in Goodyear, Arizona
Dr. Larsen's primary practice is Arizona Urology, at 13555 W McDowell Rd, Goodyear, AZ 85395 in Maricopa County. The practice phone is (623) 512-4390.
- Arizona Urology13555 W McDowell Rd, Goodyear, AZ 85395 · Maricopa CountyPhone(623) 512-4390
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen Marcus Larsen is affiliated with 7 sites of care and 1 medical group
Dr. Larsen's primary practice is Arizona Urology in Goodyear, Arizona. Dr. Larsen is also affiliated with Abrazo West Campus. The medical group on file is Arizona Urology. Dmand AI also links Dr. Larsen to 4 more hospitals and 1 group practice or clinic, each named with a free account.
Arizona UrologyPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen Marcus Larsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larsen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arizona Urology | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Marcus Larsen is one of 249 urologists in Arizona
Urology is Dr. Larsen's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Larsen's licenses on file in 2 states: Arizona and Illinois.
Specialties and state licenses
- Urology, ArizonaPrimary
- Illinois license
Urologists near Dr. Larsen
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
249urologists in Arizona
5urologists in Goodyear
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen Marcus Larsen billed Medicare for 1,543 services in 2024
CMS data shows 1,543 Medicare services from Dr. Larsen across 22 procedure codes in 2024, for 579 Medicare patients. Medicare paid $141,610 for them.
Medicare services, 20241,543
Medicare patients579
Paid by Medicare$141,610
Procedure codes22
Dr. Larsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9612024: 9006%
- Surgery
- 2023: 5432024: 5136%
- Imaging
- 2023: 1022024: 13027%
Where Dr. Larsen's Medicare services took place, 2024
- In an office1,27783%
- In a facility26617%
Dr. Larsen compared with the Arizona median for urologists, 2024
- Dr. Larsen
- Arizona median
- Medicare services
- 1,543vs 2,01623% below
- Medicare patients
- 579vs 47322% above
- Part D claims
- 874vs 70524% above
Medians across 239 urologists in Arizona with Dmand AI profiles that report each measure.
Dr. Larsen'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. Larsen and other urologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Marcus Larsen treated 579 Medicare patients in 2024, average age 74
CMS counts 579 Medicare patients who saw Dr. Larsen in 2024. The largest group is 65 to 74, with 279 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Larsen's median patient age at 61, with 23% women.
Medicare patients, 2024579
Average age74
Average risk score1.27
Also on Medicaid11%
Dr. Larsen's Medicare patients by age, 2024
Dr. Larsen's Medicare patients by sex, 2024
- Women10017%
- Men47983%
Chronic conditions among Dr. Larsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease40%
- Diabetes34%
- Chronic kidney disease33%
- Atrial fibrillation24%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larsen'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
- Women23%
- Men75%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen Marcus Larsen wrote 986 Medicare Part D claims in 2024
In 2024, Dr. Larsen wrote 986 Medicare Part D claims for 416 patients. 89% of them were for generic drugs. CMS names the drug for 874 of them, across 8 drugs with 11 or more claims each, at $318,459 in total drug cost. In 2023, CMS named 813 claims across 7 drugs.
Part D claims, 2024986
Drugs named by CMS8
Total drug cost$318,459
Part D patients416
Dr. Larsen's Part D claims by kind of drug, 2024
- Generic882 claims89%
- Brand-name104 claims11%
Dr. Larsen'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. Larsen's Part D claims, 2024
- Antibiotics29%287 of 986 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: 8132024: 8748%
Drugs named by CMS: 8 in 2024, 7 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
How Dr. Stephen Marcus Larsen takes part in Medicare
Dr. Larsen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen Marcus Larsen has 8 publications on record
Dmand AI links 8 papers to Dr. Larsen, published from 2011 to 2014. 2012 was the busiest year, with 3. The most frequent topics are Penile Induration, Penis and Injections, Intralesional. Dr. Larsen has published most often in J Sex Med. Dr. Larsen's most frequent co-author is James Patrick Rybak, MD.
Papers8
Years published2011 to 2014
Dr. Larsen's papers by year, 2011 to 2014
Topics Dr. Larsen writes about most
- Penile Induration
- Penis
- Injections, Intralesional
- Traction
- Administration, Oral
- Algorithms
- Calcium Channel Blockers
- Collagenases
Dr. Larsen's most frequent co-authors
Recent publications by Dr. Larsen
Circumcision, MaleDepressive DisorderErectile Dysfunction
Asian J Androl
AlgorithmsErectile DysfunctionFibrosis
Anesthetics, LocalDenervationLinear Models
See who Dr. Larsen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Larsen works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen Marcus Larsen received $3,674 in industry payments from 2016 to 2025
CMS Open Payments shows 103 general payments to Dr. Larsen from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 71% of the total. Coloplast Corp paid the most, $802.
General payments to Dr. Larsen by program year, 2016 to 2025
General payments to Dr. Larsen by kind, 2016 to 2025
$3.7Kin total
- Food and beverage$2,61071%
- Education$58216%
- Gifts$48113%
Companies that paid Dr. Larsen 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. Stephen Marcus Larsen graduated from Rush Medical College of Rush University
Dr. Larsen graduated from Rush Medical College of Rush University in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Marcus Larsen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)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 |
| 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. Stephen Marcus Larsen
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. Stephen Marcus Larsen's NPI number?
Dr. Stephen Marcus Larsen's NPI number is 1215165584. It was assigned on June 25, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Marcus Larsen?
Dr. Stephen Marcus Larsen is a urologist in Goodyear, Arizona. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Stephen Marcus Larsen practice?
Dr. Larsen practices at 13555 W McDowell Rd, Goodyear, AZ 85395. Dr. Larsen's primary practice is Arizona Urology in Goodyear, Arizona. Dmand AI also links Dr. Larsen to 4 hospitals and 1 group practice or clinic.
What is Dr. Stephen Marcus Larsen's office phone number?
The practice phone on file for Dr. Larsen is (623) 512-4390.
What is Dr. Stephen Marcus Larsen's medical license number?
Dr. Larsen holds Arizona license 50775, one of the licenses on file in 2 states.
Which states has Dr. Stephen Marcus Larsen been licensed in?
Dmand AI has state licenses on file for Dr. Larsen in Arizona and Illinois.
Which hospitals is Dr. Stephen Marcus Larsen affiliated with?
Dr. Larsen is affiliated with Abrazo West Campus. Dmand AI links Dr. Larsen to 4 more hospitals.
What medical group is Dr. Stephen Marcus Larsen part of?
Dr. Larsen is linked to Arizona Urology.
Does Dr. Stephen Marcus Larsen accept Medicare?
Yes. CMS data shows Dr. Larsen billed Medicare for 1,543 services in 2024, and Dr. Larsen accepts Medicare assignment.
How many Medicare patients does Dr. Stephen Marcus Larsen see?
CMS counts 579 Medicare patients who saw Dr. Larsen in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Stephen Marcus Larsen bill to Medicare?
In 2024, Dr. Larsen's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: urinary system (51798).
Where did Dr. Stephen Marcus Larsen go to medical school?
Dr. Larsen graduated from Rush Medical College of Rush University in 2009.
What drugs does Dr. Stephen Marcus Larsen prescribe most?
In 2024 Medicare Part D data, Dr. Larsen's most prescribed drugs by claims were Ciprofloxacin HCl, Tamsulosin HCl and Finasteride.
Has Dr. Stephen Marcus Larsen received payments from drug or device companies?
CMS Open Payments shows $3,674 in general payments to Dr. Larsen from 29 companies from 2016 to 2025. The largest total came from Coloplast Corp.
How long has Dr. Stephen Marcus Larsen been practicing?
Dr. Larsen graduated from medical school in 2009, 17 years ago.
Does Dr. Stephen Marcus Larsen do research?
Dmand AI links 8 publications to Dr. Larsen, published from 2011 to 2014.
Who does Dr. Stephen Marcus Larsen publish with?
Dr. Larsen's most frequent co-authors are James Patrick Rybak, MD (1 shared paper).
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