Timothy N. Riddell, PA-C
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 1000 N Westmoreland Rd, Lake Forest, IL 60045
- Practice phone
- Call (847) 234-5600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Catherine Gratz Griffin Lake Forest Hospital
Lake Forest, Illinois
Find Timothy Riddell'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.
Timothy N. Riddell is a physician assistant in Lake Forest, Illinois
Timothy Riddell practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.
Timothy Riddell's NPI, 1336503580, was assigned on April 13, 2016. Timothy Riddell graduated from Yale University School of Medicine in 2015. Timothy Riddell holds Illinois license 085005782.
- NPI
- 1336503580NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204127988
- NPI enumeration date
- April 13, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 234-5600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Timothy N. Riddell practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois
Timothy Riddell's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital, at 1000 N Westmoreland Rd, Lake Forest, IL 60045 in Lake County. The practice phone is (847) 234-5600.
- Northwestern Catherine Gratz Griffin Lake Forest Hospital1000 N Westmoreland Rd, Lake Forest, IL 60045 · Lake CountyPhone(847) 234-5600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Timothy N. Riddell is affiliated with 3 sites of care and 1 medical group
Timothy Riddell's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Timothy Riddell is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Timothy Riddell to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Timothy N. Riddell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Timothy Riddell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Catherine Gratz Griffin Lake Forest Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Timothy N. Riddell is one of 4,299 physician assistants in Illinois
Physician assistant is Timothy Riddell's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Timothy Riddell is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near Timothy Riddell
Counts of physician assistants 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
Timothy N. Riddell's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Timothy Riddell's median patient age at 66, with 60% women.
Timothy Riddell'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
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Timothy N. Riddell scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Timothy Riddell for performance year 2024, reported through an alternative payment model (APM). Timothy Riddell accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Timothy Riddell's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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
Timothy N. Riddell graduated from Yale University School of Medicine
Timothy Riddell graduated from Yale University School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Timothy N. Riddell'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Timothy N. Riddell
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What is Timothy N. Riddell's NPI number?
Timothy N. Riddell's NPI number is 1336503580. It was assigned on April 13, 2016, and it is active in the NPI Registry.
What does Timothy N. Riddell specialize in?
Timothy N. Riddell is a physician assistant in Lake Forest, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Timothy N. Riddell practice?
Timothy Riddell practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Timothy Riddell's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Timothy Riddell to 1 hospital.
What is Timothy N. Riddell's office phone number?
The practice phone on file for Timothy Riddell is (847) 234-5600.
What is Timothy N. Riddell's medical license number?
Timothy Riddell holds Illinois license 085005782.
Which hospitals is Timothy N. Riddell affiliated with?
Timothy Riddell is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Timothy Riddell to 1 more hospital.
What medical group is Timothy N. Riddell part of?
Timothy Riddell is linked to Northwestern Medical Faculty Foundation.
Does Timothy N. Riddell accept Medicare?
Yes. CMS lists Timothy Riddell as accepting Medicare assignment.
What is Timothy N. Riddell's MIPS score?
Timothy Riddell's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Where did Timothy N. Riddell go to medical school?
Timothy Riddell graduated from Yale University School of Medicine in 2015.
How long has Timothy N. Riddell been practicing?
Timothy Riddell graduated from medical school in 2015, 11 years ago.
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