Dr. Gregory Owen Anderson, DO
- Medicare services, 2024
- 696
- Medicare patients, 2024
- 208
- Part D claims, 2024
- 15
- MIPS score, 2024
- 85
- Hospital affiliations
- 1
- Practice address
- 5145 N California Ave, Chicago, IL 60625
- Practice phone
- Call (773) 878-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Anderson's professional email, personal email and mobile number
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Dr. Gregory Owen Anderson is a hospitalist in Chicago, Illinois
Dr. Anderson practices at Swedish Hospital in Chicago, Illinois, part of Endeavor Health.
Dr. Anderson's NPI, 1255771358, was assigned on July 3, 2013. Dr. Anderson holds Illinois license 036.143664.
- NPI
- 1255771358NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254603426
- NPI enumeration date
- July 3, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 878-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Owen Anderson practices at Swedish Hospital in Chicago, Illinois
Dr. Anderson's primary practice is Swedish Hospital, at 5145 N California Ave, Chicago, IL 60625 in Cook County. The practice phone is (773) 878-8200.
- Swedish Hospital5145 N California Ave, Chicago, IL 60625 · Cook CountyPhone(773) 878-8200
Source: Dmand AI Affiliation Data
Dr. Gregory Owen Anderson is affiliated with 1 site of care and 3 medical groups
Dr. Anderson's primary practice is Swedish Hospital in Chicago, Illinois, part of Endeavor Health. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Anderson to 2 more medical groups, 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. Gregory Owen Anderson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Anderson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Swedish Hospital | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Owen Anderson is one of 1,321 hospitalists in Illinois
Hospitalist is Dr. Anderson's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Anderson is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Dr. Anderson
Counts of hospitalists 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. Gregory Owen Anderson billed Medicare for 696 services in 2024
CMS data shows 696 Medicare services from Dr. Anderson across 4 procedure codes in 2024, for 208 Medicare patients. Medicare paid $60,042 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Anderson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6952024: 696No change
Dr. Anderson compared with the Illinois median for hospitalists, 2024
- Dr. Anderson
- Illinois median
- Medicare services
- 696vs 54328% above
- Medicare patients
- 208vs 24214% below
- Part D claims
- 11vs 5379% below
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Dr. Anderson'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. Gregory Owen Anderson treated 208 Medicare patients in 2024, average age 77
CMS counts 208 Medicare patients who saw Dr. Anderson in 2024. The largest group is 75 to 84, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 55% are also on Medicaid. Their average risk score is 2.53, 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. Anderson's median patient age at 66, with 44% women.
Dr. Anderson's Medicare patients by age, 2024
Dr. Anderson's Medicare patients by sex, 2024
- Women11254%
- Men9646%
Chronic conditions among Dr. Anderson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes58%
- Ischemic heart disease54%
- Chronic kidney disease50%
- Heart failure50%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Anderson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
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. Gregory Owen Anderson wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Anderson wrote 15 Medicare Part D claims for 11 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $145 in total drug cost. In 2020, CMS named 13 claims across 1 drug.
Dr. Anderson's most prescribed drugs by claims, 2023
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, 2020 to 2023
- 2020
- 2023
- Claims for drugs CMS names
- 2020: 132023: 1115%
Drugs named by CMS: 1 in 2023, 1 in 2020.
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. Gregory Owen Anderson scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Anderson for performance year 2024, reported as part of a group. Dr. Anderson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Anderson's MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Gregory Owen Anderson received $1,795 in industry payments from 2016 to 2025
CMS Open Payments shows 64 general payments to Dr. Anderson from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $947.
General payments to Dr. Anderson by program year, 2016 to 2025
Companies that paid Dr. Anderson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregory Owen Anderson'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Gregory Owen Anderson
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. Gregory Owen Anderson's NPI number?
Dr. Gregory Owen Anderson's NPI number is 1255771358. It was assigned on July 3, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Owen Anderson?
Dr. Gregory Owen Anderson is a hospitalist in Chicago, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Gregory Owen Anderson practice?
Dr. Anderson practices at 5145 N California Ave, Chicago, IL 60625. Dr. Anderson's primary practice is Swedish Hospital in Chicago, Illinois, part of Endeavor Health. Dmand AI also links Dr. Anderson to 2 medical groups.
What is Dr. Gregory Owen Anderson's office phone number?
The practice phone on file for Dr. Anderson is (773) 878-8200.
What is Dr. Gregory Owen Anderson's medical license number?
Dr. Anderson holds Illinois license 036.143664.
Which hospitals is Dr. Gregory Owen Anderson affiliated with?
Dr. Anderson practices at Swedish Hospital in Chicago, Illinois.
What medical group is Dr. Gregory Owen Anderson part of?
Dr. Anderson is linked to Endeavor Health Medical Group. Dmand AI links Dr. Anderson to 2 more medical groups.
Does Dr. Gregory Owen Anderson accept Medicare?
Yes. CMS data shows Dr. Anderson billed Medicare for 696 services in 2024, and Dr. Anderson accepts Medicare assignment.
What is Dr. Gregory Owen Anderson's MIPS score?
Dr. Anderson's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Gregory Owen Anderson see?
CMS counts 208 Medicare patients who saw Dr. Anderson in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Dr. Gregory Owen Anderson bill to Medicare?
In 2024, Dr. Anderson's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99239).
What drugs does Dr. Gregory Owen Anderson prescribe most?
In 2023 Medicare Part D data, Dr. Anderson's most prescribed drugs by claims were Pantoprazole Sodium.
Has Dr. Gregory Owen Anderson received payments from drug or device companies?
CMS Open Payments shows $1,795 in general payments to Dr. Anderson from 11 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Gregory Owen Anderson been practicing?
Dr. Anderson graduated from medical school in 2013, 13 years ago.
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