Dr. Daniel Lee Garrison, MD
- Medicare services, 2024
- 663
- Medicare patients, 2024
- 226
- Part D claims, 2024
- 204
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 836 West Wellington Avenue, Chicago, IL 60657
- Practice phone
- Call (773) 975-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Garrison's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Daniel Lee Garrison is an internist in Chicago, Illinois
Dr. Garrison practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health.
Dr. Garrison's NPI, 1215913652, was assigned on December 19, 2005. Dr. Garrison graduated from University of Alabama School of Medicine in 1994. Dr. Garrison holds Illinois license 036121658.
- NPI
- 1215913652NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193884849
- NPI enumeration date
- December 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 975-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Lee Garrison practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois
Dr. Garrison's primary practice is Advocate Illinois Masonic Medical Center, at 836 West Wellington Avenue, Chicago, IL 60657 in Cook County. The practice phone is (773) 975-1600.
- Advocate Illinois Masonic Medical Center836 West Wellington Avenue, Chicago, IL 60657 · Cook CountyPhone(773) 975-1600
Source: Dmand AI Affiliation Data
Dr. Daniel Lee Garrison is affiliated with 4 sites of care and 2 medical groups
Dr. Garrison's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Garrison to 2 more group practices and clinics, 1 hospice and 1 medical group, 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. Daniel Lee Garrison's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Garrison practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Illinois Masonic Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Lee Garrison is one of 5,652 internists in Illinois
Internal medicine is Dr. Garrison's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Garrison is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Garrison
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. Daniel Lee Garrison billed Medicare for 663 services in 2024
CMS data shows 663 Medicare services from Dr. Garrison across 5 procedure codes in 2024, for 226 Medicare patients. Medicare paid $60,942 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Garrison's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6972024: 6635%
Dr. Garrison compared with the Illinois median for internists, 2024
- Dr. Garrison
- Illinois median
- Medicare services
- 663vs 56617% above
- Medicare patients
- 226vs 2089% above
- Part D claims
- 62vs 28478% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Garrison'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.
Need commercial claims for Dr. Garrison?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Garrison and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Lee Garrison treated 226 Medicare patients in 2024, average age 75
CMS counts 226 Medicare patients who saw Dr. Garrison in 2024. The largest group is 75 to 84, with 78 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 2.55, 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. Garrison's median patient age at 78, with 57% women.
Dr. Garrison's Medicare patients by age, 2024
Dr. Garrison's Medicare patients by sex, 2024
- Women12354%
- Men10346%
Chronic conditions among Dr. Garrison's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Diabetes57%
- Heart failure54%
- Chronic kidney disease53%
- Ischemic heart disease53%
- Mood disorders48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Garrison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Lee Garrison wrote 204 Medicare Part D claims in 2024
In 2024, Dr. Garrison wrote 204 Medicare Part D claims for 75 patients. 80% of them were for generic drugs. CMS names the drug for 62 of them, across 5 drugs with 11 or more claims each, at $15,589 in total drug cost. In 2023, CMS named 38 claims across 3 drugs.
Dr. Garrison's Part D claims by kind of drug, 2024
- Generic163 claims80%
- Brand-name41 claims20%
Dr. Garrison'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. Garrison's Part D claims, 2024
- Opioids7%15 of 204 claims
- Antibiotics12%24 of 204 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: 382024: 6263%
Drugs named by CMS: 5 in 2024, 3 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. Daniel Lee Garrison takes part in Medicare
Dr. Garrison 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. Daniel Lee Garrison has 1 publication on record
Dmand AI links 1 paper to Dr. Garrison in 2019. Dr. Garrison's most frequent co-authors are Hussein Osman Daoud, MD and Olalekan Olanipekun, MD.
Dr. Garrison's most frequent co-authors
Recent publications by Dr. Garrison
See who Dr. Garrison researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Garrison works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel Lee Garrison received $319 in industry payments from 2017 to 2023
CMS Open Payments shows 2 general payments to Dr. Garrison from 2 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $297.
General payments to Dr. Garrison by program year, 2017 to 2023
Companies that paid Dr. Garrison the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Lee Garrison graduated from University of Alabama School of Medicine
Dr. Garrison graduated from University of Alabama School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Lee Garrison'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. Daniel Lee Garrison
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. Daniel Lee Garrison's NPI number?
Dr. Daniel Lee Garrison's NPI number is 1215913652. It was assigned on December 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Lee Garrison?
Dr. Daniel Lee Garrison is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel Lee Garrison practice?
Dr. Garrison practices at 836 West Wellington Avenue, Chicago, IL 60657. Dr. Garrison's primary practice is Advocate Illinois Masonic Medical Center in Chicago, Illinois, part of Advocate Health. Dmand AI also links Dr. Garrison to 2 group practices and clinics, 1 hospice and 1 medical group.
What is Dr. Daniel Lee Garrison's office phone number?
The practice phone on file for Dr. Garrison is (773) 975-1600.
What is Dr. Daniel Lee Garrison's medical license number?
Dr. Garrison holds Illinois license 036121658.
Which hospitals is Dr. Daniel Lee Garrison affiliated with?
Dr. Garrison practices at Advocate Illinois Masonic Medical Center in Chicago, Illinois.
What medical group is Dr. Daniel Lee Garrison part of?
Dr. Garrison is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Garrison to 1 more medical group.
Does Dr. Daniel Lee Garrison accept Medicare?
Yes. CMS data shows Dr. Garrison billed Medicare for 663 services in 2024, and Dr. Garrison accepts Medicare assignment.
How many Medicare patients does Dr. Daniel Lee Garrison see?
CMS counts 226 Medicare patients who saw Dr. Garrison in 2024, with an average age of 75.
What services does Dr. Daniel Lee Garrison bill to Medicare?
In 2024, Dr. Garrison's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Show 6 more questionsShow fewer questions
Where did Dr. Daniel Lee Garrison go to medical school?
Dr. Garrison graduated from University of Alabama School of Medicine in 1994.
What drugs does Dr. Daniel Lee Garrison prescribe most?
In 2024 Medicare Part D data, Dr. Garrison's most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Hydrocodone-Acetaminophen.
Has Dr. Daniel Lee Garrison received payments from drug or device companies?
CMS Open Payments shows $319 in general payments to Dr. Garrison from 2 companies from 2017 to 2023. The largest total came from Kerecis Limited.
How long has Dr. Daniel Lee Garrison been practicing?
Dr. Garrison graduated from medical school in 1994, 32 years ago.
Does Dr. Daniel Lee Garrison do research?
Dmand AI links 1 publication to Dr. Garrison.
Who does Dr. Daniel Lee Garrison publish with?
Dr. Garrison's most frequent co-authors are Hussein Osman Daoud, MD (1 shared paper) and Olalekan Olanipekun, MD (1 shared paper).
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