Cerebral Amyloid AngiopathyCerebral HemorrhageCerebral Small Vessel Diseases
Dr. Merryjean Losso, MD
NPI1174186027PAC ID7810437738
- Medicare services, 2024
- 44
- Medicare patients, 2024
- 60
- Part D claims, 2024
- 29
- Publications
- 3
- Hospital affiliations
- 4
- Practice address
- 251 E Huron St, Chicago, IL 60611
- Practice phone
- Call (312) 926-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Losso's professional email, personal email and mobile number
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Dr. Merryjean Losso is a vascular neurology physician in Chicago, Illinois
Dr. Losso practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Losso's NPI, 1174186027, was assigned on April 17, 2019. Dr. Losso graduated from Oakland Univ, William Beaumont School of Medicine in 2019. Dr. Losso holds Illinois license 036170709.
NPI and contact details
- NPI
- 1174186027NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810437738
- NPI enumeration date
- April 17, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (312) 926-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Merryjean Losso practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Losso's primary practice is Northwestern Memorial Hospital, at 251 E Huron St, Chicago, IL 60611 in Cook County. The practice phone is (312) 926-2000.
- Northwestern Memorial Hospital251 E Huron St, Chicago, IL 60611 · Cook CountyPhone(312) 926-2000
Source: Dmand AI Affiliation Data
Dr. Merryjean Losso is affiliated with 5 sites of care and 1 medical group
Dr. Losso's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dr. Losso is also affiliated with Community First Medical Center. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Losso to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Community First Medical CenterNorthwestern Medical Faculty Foundation2 hospitalsNames with a free account1 group practice or clinicName with a free account
See all 6 affiliations for Dr. LossoSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Merryjean Losso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Losso practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Memorial Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Merryjean Losso is one of 32 vascular neurology physicians in Illinois
Vascular neurology is Dr. Losso's primary specialty in the NPI Registry, under taxonomy code 2084V0102X. Dmand AI has Dr. Losso's licenses on file in 2 states: Illinois and Massachusetts.
Specialties and state licenses
- Vascular neurology, IllinoisPrimary
- Neurology, Massachusetts
Vascular neurology physicians near Dr. Losso
Counts of vascular neurology physicians with a Dmand AI profile, by place and practice. Each opens the list.
32vascular neurology physicians in Illinois16vascular neurology physicians in Chicago3vascular neurology physicians at Northwestern Memorial Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Merryjean Losso billed Medicare for 44 services in 2024
CMS data shows 44 Medicare services from Dr. Losso across 3 procedure codes in 2024, for 60 Medicare patients. Medicare paid $6,453 for them.
Medicare services, 202444
Medicare patients60
Paid by Medicare$6,453
Procedure codes3
Where Dr. Losso's Medicare services took place, 2024
- In an office3375%
- In a facility1125%
Dr. Losso compared with the Illinois median for vascular neurology physicians, 2024
- Dr. Losso
- Illinois median
- Medicare services
- 44vs 35688% below
- Medicare patients
- 60vs 20471% below
- Part D claims
- 25vs 4646% below
Medians across 32 vascular neurology physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Losso'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. Merryjean Losso treated 60 Medicare patients in 2024, average age 75
CMS counts 60 Medicare patients who saw Dr. Losso in 2024. The largest group is 75 to 84, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.86, 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. Losso's median patient age at 69, with 62% women.
Medicare patients, 202460
Average age75
Average risk score1.86
Also on Medicaid20%
Dr. Losso's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Losso's Medicare patients by sex, 2024
- Women3457%
- Men2643%
Chronic conditions among Dr. Losso's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Stroke or TIA45%
- Anxiety37%
- Mood disorders37%
- Depression33%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Losso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Merryjean Losso wrote 29 Medicare Part D claims in 2024
In 2024, Dr. Losso wrote 29 Medicare Part D claims for 15 patients. 97% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $835 in total drug cost. In 2021, CMS named 25 claims across 2 drugs.
Part D claims, 202429
Drugs named by CMS2
Total drug cost$835
Part D patients15
Dr. Losso's Part D claims by kind of drug, 2024
- Generic28 claims97%
- Brand-name and other1 claims3%
Dr. Losso's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 252022: 25No change
Drugs named by CMS: 2 in 2022, 2 in 2021.
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. Merryjean Losso offers telehealth to Medicare patients
Dr. Losso accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Losso as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Merryjean Losso has 3 publications on record
Dmand AI links 3 papers to Dr. Losso, published from 2021 to 2025. Dr. Losso's most frequent co-authors are Alexander Andreev, MD, John W. Finley, MD and David Jing Piao Lin, MD.
Papers3
Years published2021 to 2025
Dr. Losso's papers by year, 2021 to 2025
Dr. Losso's most frequent co-authors
- Alexander Andreev, MD1 shared paper
- John W. Finley, MD1 shared paper
- David Jing Piao Lin, MD1 shared paper
Recent publications by Dr. Losso
Plant Foods Hum Nutr
Africa South of the SaharaCOVID-19Diet, Vegetarian
See who Dr. Losso researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Losso works with, so you can find a warm path to the right vascular neurology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Merryjean Losso received $25 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Losso from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $25.
Companies that paid Dr. Losso the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Merryjean Losso graduated from Oakland Univ, William Beaumont School of Medicine
Dr. Losso graduated from Oakland Univ, William Beaumont School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Merryjean Losso'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) |
| 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. Merryjean Losso
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. Merryjean Losso's NPI number?
Dr. Merryjean Losso's NPI number is 1174186027. It was assigned on April 17, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Merryjean Losso?
Dr. Merryjean Losso is a vascular neurology physician in Chicago, Illinois. The primary specialty in the NPI Registry is Vascular Neurology Physician (taxonomy code 2084V0102X).
Where does Dr. Merryjean Losso practice?
Dr. Losso practices at 251 E Huron St, Chicago, IL 60611. Dr. Losso's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Losso to 2 hospitals and 1 group practice or clinic.
What is Dr. Merryjean Losso's office phone number?
The practice phone on file for Dr. Losso is (312) 926-2000.
What is Dr. Merryjean Losso's medical license number?
Dr. Losso holds Illinois license 036170709, one of the licenses on file in 2 states.
Which states has Dr. Merryjean Losso been licensed in?
Dmand AI has state licenses on file for Dr. Losso in Illinois and Massachusetts.
Which hospitals is Dr. Merryjean Losso affiliated with?
Dr. Losso practices at Northwestern Memorial Hospital in Chicago, Illinois. Dr. Losso is also affiliated with Community First Medical Center. Dmand AI links Dr. Losso to 2 more hospitals.
What medical group is Dr. Merryjean Losso part of?
Dr. Losso is linked to Northwestern Medical Faculty Foundation.
Does Dr. Merryjean Losso accept Medicare?
Yes. CMS data shows Dr. Losso billed Medicare for 44 services in 2024, and Dr. Losso accepts Medicare assignment.
Does Dr. Merryjean Losso offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Losso as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Merryjean Losso see?
CMS counts 60 Medicare patients who saw Dr. Losso in 2024, with an average age of 75.
What services does Dr. Merryjean Losso bill to Medicare?
In 2024, Dr. Losso's most billed Medicare services were office visit, established patient (99215), office visit, new patient (99205) and hospital inpatient care (99222).
Where did Dr. Merryjean Losso go to medical school?
Dr. Losso graduated from Oakland Univ, William Beaumont School of Medicine in 2019.
What drugs does Dr. Merryjean Losso prescribe most?
In 2022 Medicare Part D data, Dr. Losso's most prescribed drugs by claims were Pregabalin and Levetiracetam.
Has Dr. Merryjean Losso received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Losso from 1 company from 2025 to 2025. The largest total came from Amgen Inc.
How long has Dr. Merryjean Losso been practicing?
Dr. Losso graduated from medical school in 2019, 7 years ago.
Does Dr. Merryjean Losso do research?
Dmand AI links 3 publications to Dr. Losso, published from 2021 to 2025.
Who does Dr. Merryjean Losso publish with?
Dr. Losso's most frequent co-authors are Alexander Andreev, MD (1 shared paper), John W. Finley, MD (1 shared paper) and David Jing Piao Lin, MD (1 shared paper).
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