Am J Emerg Med
Chest PainElectrocardiographyEmergency Service, Hospital
Dr. Garth Nyambi Walker, MD
NPI1891143152
- Medicare services, 2023
- 28
- Publications
- 6
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 1653 W Congress Pkwy, Chicago, IL 60612
- Practice phone
- Call (773) 702-3135
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Walker'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. Garth Nyambi Walker is an emergency medicine physician in Chicago, Illinois
Dr. Walker practices with Rush University Internists, a medical group.
Dr. Walker's NPI, 1891143152, was assigned on May 27, 2016. Dr. Walker holds Illinois license 125068011.
NPI and contact details
- NPI
- 1891143152NPI Registry (opens in a new tab)
- NPI enumeration date
- May 27, 2016
- NPI status
- Active
- Practice phone
- (773) 702-3135
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Garth Nyambi Walker's practice address is in Chicago, Illinois
Dr. Walker's practice address in the NPI Registry is 1653 W Congress Pkwy, Chicago, IL 60612, in Cook County. The practice phone is (773) 702-3135.
- NPI Registry address1653 W Congress Pkwy, Chicago, IL 60612 · Cook CountyPhone(773) 702-3135
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Garth Nyambi Walker is affiliated with 1 medical group
Dr. Walker is part of Rush University Internists, a medical group in Chicago, Illinois.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Garth Nyambi Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Internists | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Walker practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Rush University Internists and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Garth Nyambi Walker is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Walker is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Walker
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
2,385emergency medicine physicians in Illinois613emergency medicine physicians in Chicago84emergency medicine physicians at Rush University Internists
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Garth Nyambi Walker billed Medicare for 28 services in 2023
CMS data shows 28 Medicare services from Dr. Walker across 2 procedure codes in 2023. Medicare paid $3,448 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202328
Paid by Medicare$3,448
Procedure codes2
Dr. Walker compared with the Illinois median for emergency medicine physicians, 2023
- Dr. Walker
- Illinois median
- Medicare services
- 28vs 27490% below
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2023
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. Walker and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
For MedTech and pharma teams
Find emergency medicine physicians like Dr. Walker by procedure volume and prescribing
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Dr. Garth Nyambi Walker has 6 publications on record
Dmand AI links 6 papers to Dr. Walker, published from 2021 to 2025. Dr. Walker's most frequent co-authors are Halleh Akbarnia, MD, Vineet Arora and Theodore J. Corbin, MD.
Papers6
Years published2021 to 2025
Dr. Walker's papers by year, 2021 to 2025
Dr. Walker's most frequent co-authors
Recent publications by Dr. Walker
COVID-19Health PersonnelPandemics
Public Health Rep
Analgesics, OpioidDrug OverdoseFentanyl
Health Care ReformTransitional Care
J Trauma Acute Care Surg
ChicagoDemographyHomicide
See who Dr. Walker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walker works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Garth Nyambi Walker'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 | Dmand 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 |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Garth Nyambi Walker
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. Garth Nyambi Walker's NPI number?
Dr. Garth Nyambi Walker's NPI number is 1891143152. It was assigned on May 27, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Garth Nyambi Walker?
Dr. Garth Nyambi Walker is an emergency medicine physician in Chicago, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Garth Nyambi Walker practice?
Dr. Walker practices at 1653 W Congress Pkwy, Chicago, IL 60612. Dr. Walker's primary practice is Rush University Internists, a medical group.
What is Dr. Garth Nyambi Walker's office phone number?
The practice phone on file for Dr. Walker is (773) 702-3135.
What is Dr. Garth Nyambi Walker's medical license number?
Dr. Walker holds Illinois license 125068011.
What medical group is Dr. Garth Nyambi Walker part of?
Dr. Walker is part of Rush University Internists in Chicago, Illinois.
Does Dr. Garth Nyambi Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 28 services in 2023.
What services does Dr. Garth Nyambi Walker bill to Medicare?
In 2023, Dr. Walker's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
How long has Dr. Garth Nyambi Walker been practicing?
Dr. Walker's NPI was assigned in 2016.
Does Dr. Garth Nyambi Walker do research?
Dmand AI links 6 publications to Dr. Walker, published from 2021 to 2025.
Who does Dr. Garth Nyambi Walker publish with?
Dr. Walker's most frequent co-authors are Halleh Akbarnia, MD (1 shared paper), Vineet Arora (1 shared paper) and Theodore J. Corbin, MD (1 shared paper).
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