Dr. Gerald Jay Osher, MD
- Medicare services, 2024
- 826
- Medicare patients, 2024
- 284
- Part D claims, 2024
- 5,375
- Hospital affiliations
- 3
- Industry payments
- $462
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Gerald Jay Osher is an internist in Evanston, Illinois
Dr. Osher practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Osher's NPI, 1326056136, was assigned on August 4, 2006. Dr. Osher graduated from University of Michigan Medical School in 1980. Dr. Osher holds Illinois license 036066116.
- NPI
- 1326056136NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062586761
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gerald Jay Osher practices at Evanston Hospital in Evanston, Illinois
Dr. Osher's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. Gerald Jay Osher is affiliated with 7 sites of care and 1 medical group
Dr. Osher's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Osher is also affiliated with Northwestern Memorial Hospital. The medical group on file is North Shore Medical Associates. Dmand AI also links Dr. Osher to 1 more hospital, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 skilled nursing facility, 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. Gerald Jay Osher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Osher practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | 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. Gerald Jay Osher is one of 5,652 internists in Illinois
Internal medicine is Dr. Osher's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Osher is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Osher
Counts of internists 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. Gerald Jay Osher billed Medicare for 826 services in 2024
CMS data shows 826 Medicare services from Dr. Osher across 8 procedure codes in 2024, for 284 Medicare patients. Medicare paid $57,826 for them. Every service was in an office.
Dr. Osher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 4102024: 48719%
- Office and hospital visits
- 2023: 2912024: 25313%
- Other services
- 2023: 1662024: 8648%
Dr. Osher compared with the Illinois median for internists, 2024
- Dr. Osher
- Illinois median
- Medicare services
- 826vs 56646% above
- Medicare patients
- 284vs 20837% above
- Part D claims
- 4,798vs 28416.9 times
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Osher'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. Osher and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gerald Jay Osher treated 284 Medicare patients in 2024, average age 79
CMS counts 284 Medicare patients who saw Dr. Osher in 2024. The largest group is 75 to 84, with 124 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Osher's median patient age at 77, with 44% women.
Dr. Osher's Medicare patients by age, 2024
Dr. Osher's Medicare patients by sex, 2024
- Women13849%
- Men14651%
Chronic conditions among Dr. Osher's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis50%
- Osteoporosis50%
- Ischemic heart disease23%
- Atrial fibrillation21%
- Cancer19%
- Diabetes18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Osher's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gerald Jay Osher wrote 5,375 Medicare Part D claims in 2024
In 2024, Dr. Osher wrote 5,375 Medicare Part D claims for 344 patients. 84% of them were for generic drugs. CMS names the drug for 4,798 of them, across 96 drugs with 11 or more claims each, at $657,959 in total drug cost. In 2023, CMS named 4,965 claims across 105 drugs.
Dr. Osher's Part D claims by kind of drug, 2024
- Generic4,514 claims84%
- Brand-name826 claims15%
- Other35 claims1%
Dr. Osher'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. Osher's Part D claims, 2024
- Opioids0%20 of 5,375 claims
- Antibiotics2%121 of 5,375 claims
- Antipsychotics, patients 65 and over1%31 of 5,375 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: 4,9652024: 4,7983%
Drugs named by CMS: 96 in 2024, 105 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. Gerald Jay Osher takes part in Medicare
Dr. Osher accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gerald Jay Osher received $462 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Osher from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Amgen Inc. paid the most, $149.
General payments to Dr. Osher by program year, 2016 to 2025
General payments to Dr. Osher by kind, 2016 to 2025
- Food and beverage$43293%
- Education$317%
Companies that paid Dr. Osher 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. Gerald Jay Osher graduated from University of Michigan Medical School
Dr. Osher graduated from University of Michigan Medical School in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gerald Jay Osher'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) |
| 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. Gerald Jay Osher
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. Gerald Jay Osher's NPI number?
Dr. Gerald Jay Osher's NPI number is 1326056136. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerald Jay Osher?
Dr. Gerald Jay Osher is an internist in Evanston, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gerald Jay Osher practice?
Dr. Osher practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Osher's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Osher to 1 hospital, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 skilled nursing facility.
What is Dr. Gerald Jay Osher's office phone number?
The practice phone on file for Dr. Osher is (847) 570-2000.
What is Dr. Gerald Jay Osher's medical license number?
Dr. Osher holds Illinois license 036066116.
Which hospitals is Dr. Gerald Jay Osher affiliated with?
Dr. Osher practices at Evanston Hospital in Evanston, Illinois. Dr. Osher is also affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Osher to 1 more hospital.
What medical group is Dr. Gerald Jay Osher part of?
Dr. Osher is linked to North Shore Medical Associates.
Does Dr. Gerald Jay Osher accept Medicare?
Yes. CMS data shows Dr. Osher billed Medicare for 826 services in 2024, and Dr. Osher accepts Medicare assignment.
How many Medicare patients does Dr. Gerald Jay Osher see?
CMS counts 284 Medicare patients who saw Dr. Osher in 2024, with an average age of 79.
What services does Dr. Gerald Jay Osher bill to Medicare?
In 2024, Dr. Osher's most billed Medicare services were heart test or procedure (93005), medical service (91320) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Gerald Jay Osher go to medical school?
Dr. Osher graduated from University of Michigan Medical School in 1980.
What drugs does Dr. Gerald Jay Osher prescribe most?
In 2024 Medicare Part D data, Dr. Osher's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Valsartan.
Has Dr. Gerald Jay Osher received payments from drug or device companies?
CMS Open Payments shows $462 in general payments to Dr. Osher from 8 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Gerald Jay Osher been practicing?
Dr. Osher graduated from medical school in 1980, 46 years ago.
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