Douglas Krefman, DC
- Medicare patients, 2026
- 12
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2015
- 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 Douglas Krefman'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.
Douglas Krefman is a chiropractor in Lake Forest, Illinois
Douglas Krefman practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.
Douglas Krefman's NPI, 1609243310, was assigned on August 28, 2015. Douglas Krefman graduated from National College of Chiropractic in 2015. Douglas Krefman holds Illinois license 038012867.
- NPI
- 1609243310NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668780362
- NPI enumeration date
- August 28, 2015
- 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)
Douglas Krefman practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois
Douglas Krefman'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
Douglas Krefman is affiliated with 3 sites of care and 2 medical groups
Douglas Krefman's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Douglas Krefman to 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Douglas Krefman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Douglas Krefman 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 sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Douglas Krefman is one of 2,276 chiropractors in Illinois
Chiropractor is Douglas Krefman's primary specialty in the NPI Registry, under taxonomy code 111N00000X. Douglas Krefman is licensed in Illinois.
Specialties and state licenses
- Chiropractor, IllinoisPrimary
Chiropractors near Douglas Krefman
Counts of chiropractors 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
Douglas Krefman treated 12 Medicare patients in 2026, average age 73
CMS counts 12 Medicare patients who saw Douglas Krefman in 2026. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Douglas Krefman's median patient age at 42, with 44% women.
Douglas Krefman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women44%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
How Douglas Krefman takes part in Medicare
Douglas Krefman 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)
Douglas Krefman graduated from National College of Chiropractic
Douglas Krefman graduated from National College of Chiropractic in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Douglas Krefman'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| 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 Douglas Krefman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Douglas Krefman's NPI number?
Douglas Krefman's NPI number is 1609243310. It was assigned on August 28, 2015, and it is active in the NPI Registry.
What does Douglas Krefman specialize in?
Douglas Krefman is a chiropractor in Lake Forest, Illinois. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does Douglas Krefman practice?
Douglas Krefman practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Douglas Krefman's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Dmand AI also links Douglas Krefman to 2 group practices and clinics and 2 medical groups, and a free account names each one.
What is Douglas Krefman's office phone number?
The practice phone on file for Douglas Krefman is (847) 234-5600. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Douglas Krefman's email address?
Dmand AI checks professional and personal email addresses for Douglas Krefman through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Douglas Krefman's medical license number?
Douglas Krefman holds Illinois license 038012867.
What medical group is Douglas Krefman part of?
Dmand AI links Douglas Krefman to 2 medical groups. A free account names each one, with the clinicians and leaders there.
Who does Douglas Krefman practice with?
Dmand AI links 2 HCPs to Douglas Krefman's primary medical group. A free account lists them, with verified contacts.
Does Douglas Krefman accept Medicare?
Yes. CMS lists Douglas Krefman as accepting Medicare assignment.
How many Medicare patients does Douglas Krefman see?
CMS counts 12 Medicare patients who saw Douglas Krefman in 2026, with an average age of 73.
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Where did Douglas Krefman go to medical school?
Douglas Krefman graduated from National College of Chiropractic in 2015.
How long has Douglas Krefman been practicing?
Douglas Krefman graduated from medical school in 2015, 11 years ago.
What EHR does Douglas Krefman's practice use?
Dmand AI tracks the EHR system at Northwestern Catherine Gratz Griffin Lake Forest Hospital and at 2 more sites and 2 medical groups. The vendor and product are available with a free Dmand AI account.
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