Dr. David Feerst, MD
- Medicare services, 2020
- 527
- Part D claims, 2021
- 12
- Industry payments
- $11,832
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 605 W Central Rd #100 #100, Arlington Heights, IL 60005
- Practice phone
- Call (847) 590-8100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
David Feerst MD SC
Physician office · Arlington Heights, Illinois
Find Dr. Feerst'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. David Feerst is an internist in Arlington Heights, Illinois
Dr. Feerst practices at David Feerst MD SC in Arlington Heights, Illinois.
Dr. Feerst's NPI, 1508931767, was assigned on November 22, 2006. Dr. Feerst holds Illinois license 036069659.
- NPI
- 1508931767NPI Registry (opens in a new tab)
- NPI enumeration date
- November 22, 2006
- NPI status
- Active
- Practice phone
- (847) 590-8100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David Feerst practices at David Feerst MD SC in Arlington Heights, Illinois
Dr. Feerst's primary practice is David Feerst MD SC, at 605 W Central Rd #100 #100, Arlington Heights, IL 60005. The practice phone is (847) 590-8100.
- David Feerst MD SC605 W Central Rd #100 #100, Arlington Heights, IL 60005Phone(847) 590-8100
Source: Dmand AI Affiliation Data
Dr. David Feerst is affiliated with 1 site of care
Dr. Feerst's primary practice is David Feerst MD SC in Arlington Heights, Illinois.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Feerst's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feerst practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| David Feerst MD SC | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Feerst is one of 5,652 internists in Illinois
Internal medicine is Dr. Feerst's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Feerst is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Feerst
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. David Feerst billed Medicare for 527 services in 2020
CMS data shows 527 Medicare services from Dr. Feerst across 8 procedure codes in 2020. Medicare paid $25,032 for them. Every service was in an office.
Dr. Feerst's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 8482020: 23872%
- Surgery
- 2019: 3792020: 14263%
- Other services
- 2019: 2362020: 8365%
- Lab and pathology
- 2019: 1452020: 3874%
- Tests and treatments
- 2019: 772020: 2666%
Dr. Feerst compared with the Illinois median for internists, 2020
- Dr. Feerst
- Illinois median
- Medicare services
- 527vs 5667% below
- Part D claims
- 12vs 28496% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Feerst's most billed Medicare procedure codes, 2020
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. Feerst and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Feerst's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Feerst's median patient age at 64, with 37% women.
Dr. Feerst's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women37%
- Men63%
Source: Dmand AI Patient Panel Data
Dr. David Feerst wrote 12 Medicare Part D claims in 2021
In 2021, Dr. Feerst wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $189 in total drug cost. In 2020, CMS named 3,525 claims across 66 drugs.
Dr. Feerst's most prescribed drugs by claims, 2021
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 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 3,5252021: 12100%
Drugs named by CMS: 1 in 2021, 66 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. David Feerst received $11,832 in industry payments from 2016 to 2020
CMS Open Payments shows 675 general payments to Dr. Feerst from 33 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 92% of the total. Novo Nordisk Inc paid the most, $1,523.
General payments to Dr. Feerst by program year, 2016 to 2020
General payments to Dr. Feerst by kind, 2016 to 2020
- Food and beverage$10,86392%
- Consulting fees$9258%
- Education$440%
Companies that paid Dr. Feerst the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David Feerst'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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. David Feerst
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. David Feerst's NPI number?
Dr. David Feerst's NPI number is 1508931767. It was assigned on November 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Feerst?
Dr. David Feerst is an internist in Arlington Heights, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Feerst practice?
Dr. Feerst practices at 605 W Central Rd #100 #100, Arlington Heights, IL 60005. Dr. Feerst's primary practice is David Feerst MD SC in Arlington Heights, Illinois.
What is Dr. David Feerst's office phone number?
The practice phone on file for Dr. Feerst is (847) 590-8100.
What is Dr. David Feerst's medical license number?
Dr. Feerst holds Illinois license 036069659.
Does Dr. David Feerst accept Medicare?
Yes. CMS data shows Dr. Feerst billed Medicare for 527 services in 2020.
What services does Dr. David Feerst bill to Medicare?
In 2020, Dr. Feerst's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
What drugs does Dr. David Feerst prescribe most?
In 2021 Medicare Part D data, Dr. Feerst's most prescribed drugs by claims were Rosuvastatin Calcium.
Has Dr. David Feerst received payments from drug or device companies?
CMS Open Payments shows $11,832 in general payments to Dr. Feerst from 33 companies from 2016 to 2020. The largest total came from Novo Nordisk Inc.
How long has Dr. David Feerst been practicing?
Dr. Feerst's NPI was assigned in 2006.
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